TY  - JOUR
AU  - Babić, Bojana
AU  - Prvulović, Milica
AU  - Filipović, Nenad
AU  - Mravik, Željko
AU  - Sekulić, Zorana
AU  - Milošević Govedarović, Sanja S.
AU  - Milanović, Igor
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10936
AB  - The influence of the addition of nickel on hydrogen desorption from the MgH2–Ni composite was investigated. The composite powder was ball-milled for 15, 30 and 45 min and characterized by XRD, SEM-EDS, PSD, DSC and TPD methods. It was observed that the uniform distribution of nickel decreases hydrogen desorption temperature by more than 100 °C. A kinetic model for the hydrogen desorption process was also determined. The hydrogen desorption reaction in catalyzed samples is described by the Avrami-Erofeev model with the value of parameter n = 4. The apparent activation energy of the hydrogen desorption reaction was decreased with the increase of milling time and the addition of nickel. It has been shown for the first time that two main processes (grinding and the catalytic effect) could be separately analyzed. It is concluded that for investigated short milling times, the catalytic effect of Ni is predominant.
T2  - International Journal of Hydrogen Energy
T1  - Hydrogen storage properties of MgH2–Tm: Ni-catalysis vs. mechanical milling
VL  - 54
SP  - 446
EP  - 456
DO  - 10.1016/j.ijhydene.2023.04.078
ER  - 

@article{
author = "Babić, Bojana and Prvulović, Milica and Filipović, Nenad and Mravik, Željko and Sekulić, Zorana and Milošević Govedarović, Sanja S. and Milanović, Igor",
year = "2023",
abstract = "The influence of the addition of nickel on hydrogen desorption from the MgH2–Ni composite was investigated. The composite powder was ball-milled for 15, 30 and 45 min and characterized by XRD, SEM-EDS, PSD, DSC and TPD methods. It was observed that the uniform distribution of nickel decreases hydrogen desorption temperature by more than 100 °C. A kinetic model for the hydrogen desorption process was also determined. The hydrogen desorption reaction in catalyzed samples is described by the Avrami-Erofeev model with the value of parameter n = 4. The apparent activation energy of the hydrogen desorption reaction was decreased with the increase of milling time and the addition of nickel. It has been shown for the first time that two main processes (grinding and the catalytic effect) could be separately analyzed. It is concluded that for investigated short milling times, the catalytic effect of Ni is predominant.",
journal = "International Journal of Hydrogen Energy",
title = "Hydrogen storage properties of MgH2–Tm: Ni-catalysis vs. mechanical milling",
volume = "54",
pages = "446-456",
doi = "10.1016/j.ijhydene.2023.04.078"
}

Babić, B., Prvulović, M., Filipović, N., Mravik, Ž., Sekulić, Z., Milošević Govedarović, S. S.,& Milanović, I.. (2023). Hydrogen storage properties of MgH2–Tm: Ni-catalysis vs. mechanical milling. in International Journal of Hydrogen Energy, 54, 446-456.
https://doi.org/10.1016/j.ijhydene.2023.04.078

Babić B, Prvulović M, Filipović N, Mravik Ž, Sekulić Z, Milošević Govedarović SS, Milanović I. Hydrogen storage properties of MgH2–Tm: Ni-catalysis vs. mechanical milling. in International Journal of Hydrogen Energy. 2023;54:446-456.
doi:10.1016/j.ijhydene.2023.04.078 .

Babić, Bojana, Prvulović, Milica, Filipović, Nenad, Mravik, Željko, Sekulić, Zorana, Milošević Govedarović, Sanja S., Milanović, Igor, "Hydrogen storage properties of MgH2–Tm: Ni-catalysis vs. mechanical milling" in International Journal of Hydrogen Energy, 54 (2023):446-456,
https://doi.org/10.1016/j.ijhydene.2023.04.078 . .

TY  - CONF
AU  - Rmuš Mravik, Jelena
AU  - Rajić, Vladimir
AU  - Belec, Blaž
AU  - Mravik, Željko
AU  - Jovanović, Zoran
AU  - Stojković Simatović, Ivana
AU  - Kurko, Sandra
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11657
AB  - Hydrogen production can be outlined as an important aspect of the modern economy. In order to be more clean and renewable, green hydrogen is most desirable, where expensive catalysts for water electrolysis are usually used. As alternative, transition metal dichalcogenides represent potentially good material, with room for further improvement. Molybdenum disulfide is a stable material with a reasonable amount of it available. The properties of the material can be easily tuned in order to increase its charge transport and create more active sites. The incorporation of defects and additives can be beneficial for the catalytic activity of MoS2. Graphene oxide (GO) is carbon nanomaterial, with a large surface area and when reduced, it could be used as a conductive additive. Furthermore, ball milling is a known low-cost, simple and scalable method to introduce defects in the structure. Therefore, combining these two approaches should result in a material with enhanced catalytic activity for hydrogen evolution reaction. The molybdenum disulfide was prepared by easy one-step hydrothermal synthesis. The graphene oxide was first obtained by modified Hummers’ method and after that reduced by thermal treatment at 200 °C. Thus prepared constituents are combined in different mass ratios and composites were obtained by milling with a high-energy ball mill. The various milling parameters were optimized. The prepared composites were analyzed as catalysts for hydrogen evolution reaction in an acidic solution.
PB  - Belgrade : Materials Research Society of Serbia
C3  - YUCOMAT 2023 : 24th Annual Conference YUCOMAT 2023 : programme and the book of abstracts; September 4-8, 2023; Herceg Novi, Montenegro
T1  - Modification of MoS2/GO composites with ball milling and thermal treatment for catalytic application
SP  - 156
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11657
ER  - 

@conference{
author = "Rmuš Mravik, Jelena and Rajić, Vladimir and Belec, Blaž and Mravik, Željko and Jovanović, Zoran and Stojković Simatović, Ivana and Kurko, Sandra",
year = "2023",
abstract = "Hydrogen production can be outlined as an important aspect of the modern economy. In order to be more clean and renewable, green hydrogen is most desirable, where expensive catalysts for water electrolysis are usually used. As alternative, transition metal dichalcogenides represent potentially good material, with room for further improvement. Molybdenum disulfide is a stable material with a reasonable amount of it available. The properties of the material can be easily tuned in order to increase its charge transport and create more active sites. The incorporation of defects and additives can be beneficial for the catalytic activity of MoS2. Graphene oxide (GO) is carbon nanomaterial, with a large surface area and when reduced, it could be used as a conductive additive. Furthermore, ball milling is a known low-cost, simple and scalable method to introduce defects in the structure. Therefore, combining these two approaches should result in a material with enhanced catalytic activity for hydrogen evolution reaction. The molybdenum disulfide was prepared by easy one-step hydrothermal synthesis. The graphene oxide was first obtained by modified Hummers’ method and after that reduced by thermal treatment at 200 °C. Thus prepared constituents are combined in different mass ratios and composites were obtained by milling with a high-energy ball mill. The various milling parameters were optimized. The prepared composites were analyzed as catalysts for hydrogen evolution reaction in an acidic solution.",
publisher = "Belgrade : Materials Research Society of Serbia",
journal = "YUCOMAT 2023 : 24th Annual Conference YUCOMAT 2023 : programme and the book of abstracts; September 4-8, 2023; Herceg Novi, Montenegro",
title = "Modification of MoS2/GO composites with ball milling and thermal treatment for catalytic application",
pages = "156",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11657"
}

Rmuš Mravik, J., Rajić, V., Belec, B., Mravik, Ž., Jovanović, Z., Stojković Simatović, I.,& Kurko, S.. (2023). Modification of MoS2/GO composites with ball milling and thermal treatment for catalytic application. in YUCOMAT 2023 : 24th Annual Conference YUCOMAT 2023 : programme and the book of abstracts; September 4-8, 2023; Herceg Novi, Montenegro
Belgrade : Materials Research Society of Serbia., 156.
https://hdl.handle.net/21.15107/rcub_vinar_11657

Rmuš Mravik J, Rajić V, Belec B, Mravik Ž, Jovanović Z, Stojković Simatović I, Kurko S. Modification of MoS2/GO composites with ball milling and thermal treatment for catalytic application. in YUCOMAT 2023 : 24th Annual Conference YUCOMAT 2023 : programme and the book of abstracts; September 4-8, 2023; Herceg Novi, Montenegro. 2023;:156.
https://hdl.handle.net/21.15107/rcub_vinar_11657 .

Rmuš Mravik, Jelena, Rajić, Vladimir, Belec, Blaž, Mravik, Željko, Jovanović, Zoran, Stojković Simatović, Ivana, Kurko, Sandra, "Modification of MoS2/GO composites with ball milling and thermal treatment for catalytic application" in YUCOMAT 2023 : 24th Annual Conference YUCOMAT 2023 : programme and the book of abstracts; September 4-8, 2023; Herceg Novi, Montenegro (2023):156,
https://hdl.handle.net/21.15107/rcub_vinar_11657 .

TY  - CONF
AU  - Mravik, Željko
AU  - Pejčić, Milica
AU  - Rmuš Mravik, Jelena
AU  - Belec, Blaž
AU  - Bajuk-Bogdanović, Danica
AU  - Jovanović, Sonja
AU  - Marković, Smilja
AU  - Gavrilov, Nemanja
AU  - Skuratov, Vladimir
AU  - Jovanović, Zoran
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11637
AB  - In recent years graphene oxide (GO)/12-tungstophosphoric acid (WPA) nanocomposites have demonstrated promising potential for electrochemical supercapacitors. However, to enhance their performance, it is necessary to modify the surface chemistry of GO to minimize the influence of basal plane oxygen groups, which hinder the material's conductivity. Additionally, some degree of structural modification of WPA is desired. In this regard, ion beam irradiation presents a promising method to simultaneously optimize surface chemistry of GO and structurally modify WPA. To accomplish this, ion beam irradiation is employed for modification of individual components as well as their nanocomposites with varying mass ratios. Different ion species, fluences and energies were utilized depending on the sample type, ranging from 10 keV C to 710 MeV Bi. Spectroscopy methods were employed to gain insight into the type and degree of structural modification in WPA. A direct correlation is observed between the parameters of the ion beams and the resulting structural changes. As the disordering increases, the structure transitions from partially modified to increased bond breaking, ultimately leading to reconnected bronze-like structures. By increasing the fluence, a gradual modification of the structure and surface chemistry of GO was possible. The effects of irradiation on GO and WPA are particularly pronounced in irradiated composites, where higher capacitance is measured.
PB  - Belgrade : Serbian Ceramic Society
C3  - Advanced Ceramics and Application :11th Serbian Ceramic Society Conference : program and the book of abstracts; September 18-20, 2023; Belgrade
T1  - Graphene oxide/12 tungstophosphoric acid nanocomposites – achieving favorable properties with ion beams for electrochemical supercapacitors
SP  - 50
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11637
ER  - 

@conference{
author = "Mravik, Željko and Pejčić, Milica and Rmuš Mravik, Jelena and Belec, Blaž and Bajuk-Bogdanović, Danica and Jovanović, Sonja and Marković, Smilja and Gavrilov, Nemanja and Skuratov, Vladimir and Jovanović, Zoran",
year = "2023",
abstract = "In recent years graphene oxide (GO)/12-tungstophosphoric acid (WPA) nanocomposites have demonstrated promising potential for electrochemical supercapacitors. However, to enhance their performance, it is necessary to modify the surface chemistry of GO to minimize the influence of basal plane oxygen groups, which hinder the material's conductivity. Additionally, some degree of structural modification of WPA is desired. In this regard, ion beam irradiation presents a promising method to simultaneously optimize surface chemistry of GO and structurally modify WPA. To accomplish this, ion beam irradiation is employed for modification of individual components as well as their nanocomposites with varying mass ratios. Different ion species, fluences and energies were utilized depending on the sample type, ranging from 10 keV C to 710 MeV Bi. Spectroscopy methods were employed to gain insight into the type and degree of structural modification in WPA. A direct correlation is observed between the parameters of the ion beams and the resulting structural changes. As the disordering increases, the structure transitions from partially modified to increased bond breaking, ultimately leading to reconnected bronze-like structures. By increasing the fluence, a gradual modification of the structure and surface chemistry of GO was possible. The effects of irradiation on GO and WPA are particularly pronounced in irradiated composites, where higher capacitance is measured.",
publisher = "Belgrade : Serbian Ceramic Society",
journal = "Advanced Ceramics and Application :11th Serbian Ceramic Society Conference : program and the book of abstracts; September 18-20, 2023; Belgrade",
title = "Graphene oxide/12 tungstophosphoric acid nanocomposites – achieving favorable properties with ion beams for electrochemical supercapacitors",
pages = "50",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11637"
}

Mravik, Ž., Pejčić, M., Rmuš Mravik, J., Belec, B., Bajuk-Bogdanović, D., Jovanović, S., Marković, S., Gavrilov, N., Skuratov, V.,& Jovanović, Z.. (2023). Graphene oxide/12 tungstophosphoric acid nanocomposites – achieving favorable properties with ion beams for electrochemical supercapacitors. in Advanced Ceramics and Application :11th Serbian Ceramic Society Conference : program and the book of abstracts; September 18-20, 2023; Belgrade
Belgrade : Serbian Ceramic Society., 50.
https://hdl.handle.net/21.15107/rcub_vinar_11637

Mravik Ž, Pejčić M, Rmuš Mravik J, Belec B, Bajuk-Bogdanović D, Jovanović S, Marković S, Gavrilov N, Skuratov V, Jovanović Z. Graphene oxide/12 tungstophosphoric acid nanocomposites – achieving favorable properties with ion beams for electrochemical supercapacitors. in Advanced Ceramics and Application :11th Serbian Ceramic Society Conference : program and the book of abstracts; September 18-20, 2023; Belgrade. 2023;:50.
https://hdl.handle.net/21.15107/rcub_vinar_11637 .

Mravik, Željko, Pejčić, Milica, Rmuš Mravik, Jelena, Belec, Blaž, Bajuk-Bogdanović, Danica, Jovanović, Sonja, Marković, Smilja, Gavrilov, Nemanja, Skuratov, Vladimir, Jovanović, Zoran, "Graphene oxide/12 tungstophosphoric acid nanocomposites – achieving favorable properties with ion beams for electrochemical supercapacitors" in Advanced Ceramics and Application :11th Serbian Ceramic Society Conference : program and the book of abstracts; September 18-20, 2023; Belgrade (2023):50,
https://hdl.handle.net/21.15107/rcub_vinar_11637 .

TY  - CONF
AU  - Mravik, Željko
AU  - Pejčić, Milica
AU  - Rmuš Mravik, Jelena
AU  - Belec, Blaž
AU  - Bajuk-Bogdanović, Danica
AU  - Jovanović, Sonja
AU  - Marković, Smilja
AU  - Gavrilov, Nemanja
AU  - Skuratov, Vladimir
AU  - Jovanović, Zoran
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11651
AB  - Ion beam modification of materials is notable method for achieving their unique structural, electronic, and other physicochemical properties. In the case of graphene oxide (GO) such modification of structure and surface chemistry is known to yield properties interesting for electrochemical supercapacitors. The performance of GO supercapacitors can be additionally improved by incorporating components with attractive redox properties. In this work, the influence of ion beam irradiation on synergy of GO and 12-tungstophosphoric acid (WPA) in their nanocomposite was investigated. For that, both components and their composites with different mass ratios were irradiated using different ion species, fluences and energies (from 10 keV C to 710 MeV Bi). For the irradiated WPA, results showed clear correlation between ion beam parameters, degree of structural modification and electrochemical properties. With increasing structural modification, bond breaking is first induced giving higher catalytic activity toward HER. Further irradiation resulted in an increased interconnection of polytungstate species producing lower catalytic activity and lower lithiation capacity. Irradiated GO showed modified surface chemistry, with preferable reduction of alkoxy and epoxy groups, changes in morphology and electric properties due to increased number of defects with increasing fluence, synergic effect of ion beam irradiated GO and WPA resulted in higher capacitance of irradiated composites compared to GO presumably because of interaction of structurally modified WPA with defect sites on GO thus reducing electrolyte flow along ion tracks.
PB  - Belgrade : Materials Research Society of Serbia
C3  - YUCOMAT 2023 : 24th Annual Conference YUCOMAT 2023 : programme and the book of abstracts; September 4-8, 2023; Herceg Novi, Montenegro
T1  - Ion-beam irradiated graphene oxide, 12-tungstophosphoric acid and their nanocomposites for electrochemical supercapacitors
SP  - 36
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11651
ER  - 

@conference{
author = "Mravik, Željko and Pejčić, Milica and Rmuš Mravik, Jelena and Belec, Blaž and Bajuk-Bogdanović, Danica and Jovanović, Sonja and Marković, Smilja and Gavrilov, Nemanja and Skuratov, Vladimir and Jovanović, Zoran",
year = "2023",
abstract = "Ion beam modification of materials is notable method for achieving their unique structural, electronic, and other physicochemical properties. In the case of graphene oxide (GO) such modification of structure and surface chemistry is known to yield properties interesting for electrochemical supercapacitors. The performance of GO supercapacitors can be additionally improved by incorporating components with attractive redox properties. In this work, the influence of ion beam irradiation on synergy of GO and 12-tungstophosphoric acid (WPA) in their nanocomposite was investigated. For that, both components and their composites with different mass ratios were irradiated using different ion species, fluences and energies (from 10 keV C to 710 MeV Bi). For the irradiated WPA, results showed clear correlation between ion beam parameters, degree of structural modification and electrochemical properties. With increasing structural modification, bond breaking is first induced giving higher catalytic activity toward HER. Further irradiation resulted in an increased interconnection of polytungstate species producing lower catalytic activity and lower lithiation capacity. Irradiated GO showed modified surface chemistry, with preferable reduction of alkoxy and epoxy groups, changes in morphology and electric properties due to increased number of defects with increasing fluence, synergic effect of ion beam irradiated GO and WPA resulted in higher capacitance of irradiated composites compared to GO presumably because of interaction of structurally modified WPA with defect sites on GO thus reducing electrolyte flow along ion tracks.",
publisher = "Belgrade : Materials Research Society of Serbia",
journal = "YUCOMAT 2023 : 24th Annual Conference YUCOMAT 2023 : programme and the book of abstracts; September 4-8, 2023; Herceg Novi, Montenegro",
title = "Ion-beam irradiated graphene oxide, 12-tungstophosphoric acid and their nanocomposites for electrochemical supercapacitors",
pages = "36",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11651"
}

Mravik, Ž., Pejčić, M., Rmuš Mravik, J., Belec, B., Bajuk-Bogdanović, D., Jovanović, S., Marković, S., Gavrilov, N., Skuratov, V.,& Jovanović, Z.. (2023). Ion-beam irradiated graphene oxide, 12-tungstophosphoric acid and their nanocomposites for electrochemical supercapacitors. in YUCOMAT 2023 : 24th Annual Conference YUCOMAT 2023 : programme and the book of abstracts; September 4-8, 2023; Herceg Novi, Montenegro
Belgrade : Materials Research Society of Serbia., 36.
https://hdl.handle.net/21.15107/rcub_vinar_11651

Mravik Ž, Pejčić M, Rmuš Mravik J, Belec B, Bajuk-Bogdanović D, Jovanović S, Marković S, Gavrilov N, Skuratov V, Jovanović Z. Ion-beam irradiated graphene oxide, 12-tungstophosphoric acid and their nanocomposites for electrochemical supercapacitors. in YUCOMAT 2023 : 24th Annual Conference YUCOMAT 2023 : programme and the book of abstracts; September 4-8, 2023; Herceg Novi, Montenegro. 2023;:36.
https://hdl.handle.net/21.15107/rcub_vinar_11651 .

Mravik, Željko, Pejčić, Milica, Rmuš Mravik, Jelena, Belec, Blaž, Bajuk-Bogdanović, Danica, Jovanović, Sonja, Marković, Smilja, Gavrilov, Nemanja, Skuratov, Vladimir, Jovanović, Zoran, "Ion-beam irradiated graphene oxide, 12-tungstophosphoric acid and their nanocomposites for electrochemical supercapacitors" in YUCOMAT 2023 : 24th Annual Conference YUCOMAT 2023 : programme and the book of abstracts; September 4-8, 2023; Herceg Novi, Montenegro (2023):36,
https://hdl.handle.net/21.15107/rcub_vinar_11651 .

TY  - CONF
AU  - Pejčić, Milica
AU  - Mravik, Željko
AU  - Bajuk-Bogdanović, Danica
AU  - Grujičić, Marija
AU  - Rmuš Mravik, Jelena
AU  - Jovanović, Sonja
AU  - Jovanović, Zoran
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12316
AB  - Different hierarchical ordering of nanomaterials, either as individual components or in the form of nanocomposites, is one of the approaches used for the development of supercapacitors. In this work, the effect of hydrothermal treatment on oxygen functional groups of nanocomposites between graphene oxide (GO), 12-tungstophosphoric acid (WPA), and 3,4,9,10-perylenetetracarboxylic dianhydride (PTCDA) was examined. The mentioned materials were hydrothermally treated for 4, 8 and 12 hours at 180 °C in order to understand how interaction between the components is influencing development of surface chemistry. The results of Fourier-transform infrared spectroscopy (FTIR), Raman spectroscopy (Raman), and temperature-programmed desorption (TPD) are showing the surface and structural changes of GO (individually and in nanocomposite) as a result of hydrothermal treatment. Both FTIR and RAMAN confirm the presence of WPA and PTCDA. Additionally, it appears that hydrothermal treatment has no impact on the structural changes in PTCDA, which is consistent across various temperature conditions. TPD results indicate that prolonged hydrothermal treatment leads to a gradual increase of the number of functional groups of GO. However, the number of desorbed groups is influenced by the WPA and PTDCA components. This research offers new insights into GO, WPA, and PTCDA interactions which can have useful implications for development of electrochemical supercapacitors.
PB  - Belgrade : Institute of Technical Sciences of SASA
C3  - 21st Young Researchers' Conference Materials Sciences and Engineering : program and the book of abstracts
T1  - Investigating the influence of hydrothermal treatment on oxygen functional groups in graphene oxide-based nanocomposites
SP  - 43
EP  - 43
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12316
ER  - 

@conference{
author = "Pejčić, Milica and Mravik, Željko and Bajuk-Bogdanović, Danica and Grujičić, Marija and Rmuš Mravik, Jelena and Jovanović, Sonja and Jovanović, Zoran",
year = "2023",
abstract = "Different hierarchical ordering of nanomaterials, either as individual components or in the form of nanocomposites, is one of the approaches used for the development of supercapacitors. In this work, the effect of hydrothermal treatment on oxygen functional groups of nanocomposites between graphene oxide (GO), 12-tungstophosphoric acid (WPA), and 3,4,9,10-perylenetetracarboxylic dianhydride (PTCDA) was examined. The mentioned materials were hydrothermally treated for 4, 8 and 12 hours at 180 °C in order to understand how interaction between the components is influencing development of surface chemistry. The results of Fourier-transform infrared spectroscopy (FTIR), Raman spectroscopy (Raman), and temperature-programmed desorption (TPD) are showing the surface and structural changes of GO (individually and in nanocomposite) as a result of hydrothermal treatment. Both FTIR and RAMAN confirm the presence of WPA and PTCDA. Additionally, it appears that hydrothermal treatment has no impact on the structural changes in PTCDA, which is consistent across various temperature conditions. TPD results indicate that prolonged hydrothermal treatment leads to a gradual increase of the number of functional groups of GO. However, the number of desorbed groups is influenced by the WPA and PTDCA components. This research offers new insights into GO, WPA, and PTCDA interactions which can have useful implications for development of electrochemical supercapacitors.",
publisher = "Belgrade : Institute of Technical Sciences of SASA",
journal = "21st Young Researchers' Conference Materials Sciences and Engineering : program and the book of abstracts",
title = "Investigating the influence of hydrothermal treatment on oxygen functional groups in graphene oxide-based nanocomposites",
pages = "43-43",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12316"
}

Pejčić, M., Mravik, Ž., Bajuk-Bogdanović, D., Grujičić, M., Rmuš Mravik, J., Jovanović, S.,& Jovanović, Z.. (2023). Investigating the influence of hydrothermal treatment on oxygen functional groups in graphene oxide-based nanocomposites. in 21st Young Researchers' Conference Materials Sciences and Engineering : program and the book of abstracts
Belgrade : Institute of Technical Sciences of SASA., 43-43.
https://hdl.handle.net/21.15107/rcub_vinar_12316

Pejčić M, Mravik Ž, Bajuk-Bogdanović D, Grujičić M, Rmuš Mravik J, Jovanović S, Jovanović Z. Investigating the influence of hydrothermal treatment on oxygen functional groups in graphene oxide-based nanocomposites. in 21st Young Researchers' Conference Materials Sciences and Engineering : program and the book of abstracts. 2023;:43-43.
https://hdl.handle.net/21.15107/rcub_vinar_12316 .

Pejčić, Milica, Mravik, Željko, Bajuk-Bogdanović, Danica, Grujičić, Marija, Rmuš Mravik, Jelena, Jovanović, Sonja, Jovanović, Zoran, "Investigating the influence of hydrothermal treatment on oxygen functional groups in graphene oxide-based nanocomposites" in 21st Young Researchers' Conference Materials Sciences and Engineering : program and the book of abstracts (2023):43-43,
https://hdl.handle.net/21.15107/rcub_vinar_12316 .

TY  - CONF
AU  - Jovanović, Zoran
AU  - Jovanović, Sonja
AU  - Mravik, Željko
AU  - Rmuš, Jelena
AU  - Jelić, Marko
AU  - Pejčić, Milica
AU  - Grujičić, Marija
AU  - Petković, Darija
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12334
AB  - Elektrohemijska istraživanja su prethodnih godina dala ključni podstrek globalnim stremljenjima ka obnovljivim izvorima energije. Višegeneracijski napori, u početku motivisani željom za fundamentalnim razumevanjem procesa, aktuelizovani su očekivanim nedostatkom fosilnih goriva i pratećim nepovoljnim uticajem na životnu sredinu. Nanomaterijali su omogućili spektakularan skok u tehnološkim inovacijama i neosporan je njihov doprinos obnovljivim izvorima energije. Zahvaljujući novim svojstvima nanomaterijala i njihovoj sinergiji, omogućeno je dalje unapređenje i integracija različitih funkcionalnosti. Pri tome, postalo je jasno da atomski precizan dizajn materijala postaje kritičan za razvoj naprava sledeće generacije. Ovo je posebno važno u slučaju nanokompozita gde interakcija komponenti pojačava moguće sinergijske doprinose. U izlaganju će biti dat osvrt na napredne metode sinteze i modifikacije materijala – od tradicionalnih, do tankih filmova, 0D i 2D nanomaterijala i njihovih kompozita – posmatranih kroz prizmu obnovljivih izvora energije i održivosti (elektrohemijski superkondenzatori, razgradnja vode, senzori, i dr.). Razvoj novih materijala i unapređenje elektrohemijskih sistema ima potencijal da suštinski učini obnovljivu energiju održivijom i dostupnijom, time otvarajući put ka održivoj budućnosti.
C3  - Savremena stremljenja u elektrohemiji u proceu prelaska na obnovljive izvore energije: Naučni skup posvećen 100 - godišnjici rođenja inostranog člana SANU Dž. O'M. Bokrisa : Knjiga izvoda
T1  - Sinteza i modifikacija naprednih nanomaterijala - pogled kroz prizmu obnovljivih izvora energije
SP  - 19
EP  - 19
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12334
ER  - 

@conference{
author = "Jovanović, Zoran and Jovanović, Sonja and Mravik, Željko and Rmuš, Jelena and Jelić, Marko and Pejčić, Milica and Grujičić, Marija and Petković, Darija",
year = "2023",
abstract = "Elektrohemijska istraživanja su prethodnih godina dala ključni podstrek globalnim stremljenjima ka obnovljivim izvorima energije. Višegeneracijski napori, u početku motivisani željom za fundamentalnim razumevanjem procesa, aktuelizovani su očekivanim nedostatkom fosilnih goriva i pratećim nepovoljnim uticajem na životnu sredinu. Nanomaterijali su omogućili spektakularan skok u tehnološkim inovacijama i neosporan je njihov doprinos obnovljivim izvorima energije. Zahvaljujući novim svojstvima nanomaterijala i njihovoj sinergiji, omogućeno je dalje unapređenje i integracija različitih funkcionalnosti. Pri tome, postalo je jasno da atomski precizan dizajn materijala postaje kritičan za razvoj naprava sledeće generacije. Ovo je posebno važno u slučaju nanokompozita gde interakcija komponenti pojačava moguće sinergijske doprinose. U izlaganju će biti dat osvrt na napredne metode sinteze i modifikacije materijala – od tradicionalnih, do tankih filmova, 0D i 2D nanomaterijala i njihovih kompozita – posmatranih kroz prizmu obnovljivih izvora energije i održivosti (elektrohemijski superkondenzatori, razgradnja vode, senzori, i dr.). Razvoj novih materijala i unapređenje elektrohemijskih sistema ima potencijal da suštinski učini obnovljivu energiju održivijom i dostupnijom, time otvarajući put ka održivoj budućnosti.",
journal = "Savremena stremljenja u elektrohemiji u proceu prelaska na obnovljive izvore energije: Naučni skup posvećen 100 - godišnjici rođenja inostranog člana SANU Dž. O'M. Bokrisa : Knjiga izvoda",
title = "Sinteza i modifikacija naprednih nanomaterijala - pogled kroz prizmu obnovljivih izvora energije",
pages = "19-19",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12334"
}

Jovanović, Z., Jovanović, S., Mravik, Ž., Rmuš, J., Jelić, M., Pejčić, M., Grujičić, M.,& Petković, D.. (2023). Sinteza i modifikacija naprednih nanomaterijala - pogled kroz prizmu obnovljivih izvora energije. in Savremena stremljenja u elektrohemiji u proceu prelaska na obnovljive izvore energije: Naučni skup posvećen 100 - godišnjici rođenja inostranog člana SANU Dž. O'M. Bokrisa : Knjiga izvoda, 19-19.
https://hdl.handle.net/21.15107/rcub_vinar_12334

Jovanović Z, Jovanović S, Mravik Ž, Rmuš J, Jelić M, Pejčić M, Grujičić M, Petković D. Sinteza i modifikacija naprednih nanomaterijala - pogled kroz prizmu obnovljivih izvora energije. in Savremena stremljenja u elektrohemiji u proceu prelaska na obnovljive izvore energije: Naučni skup posvećen 100 - godišnjici rođenja inostranog člana SANU Dž. O'M. Bokrisa : Knjiga izvoda. 2023;:19-19.
https://hdl.handle.net/21.15107/rcub_vinar_12334 .

Jovanović, Zoran, Jovanović, Sonja, Mravik, Željko, Rmuš, Jelena, Jelić, Marko, Pejčić, Milica, Grujičić, Marija, Petković, Darija, "Sinteza i modifikacija naprednih nanomaterijala - pogled kroz prizmu obnovljivih izvora energije" in Savremena stremljenja u elektrohemiji u proceu prelaska na obnovljive izvore energije: Naučni skup posvećen 100 - godišnjici rođenja inostranog člana SANU Dž. O'M. Bokrisa : Knjiga izvoda (2023):19-19,
https://hdl.handle.net/21.15107/rcub_vinar_12334 .

TY  - CONF
AU  - Mravik, Željko
AU  - Pejčić, Milica
AU  - Grujičić, Marija
AU  - Rmuš Mravik, Jelena
AU  - Stević, Miša
AU  - Stević, Zoran
AU  - Jovanović, Zoran
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12314
AB  - In sensor devices the material of choice should be highly dependent on perturbation of environmental parameters. In order to achieve good sensitivity and selectivity of sensing devices to temperature, humidity or concentration of different gasses, the materials with adjustable properties are highly desirable. Electric properties of graphene oxide (GO) can be easily tuned by modification of surface chemistry and anchoring of functional compounds onto its two-dimensional structure. Prior to application of sensing device, research and development of materials system is the most essential step. In this work, the formation of GO and GO/12-tungstophosphoric acid (WPA) films with 6 wt.% of WPA on interdigital electrodes was investigated by variation of dip-coating parameters (receding angle and time between steps). Obtained films were thermally reduced in argon atmosphere after which optical microscopy was used to evaluate morphology and stability of deposited GO and GO/WPA films. Impedance spectroscopy was used to investigate the electric properties of the obtained films in range from 10 Hz to 100 kHz. Measured impedance values were correlated to the degree of material detachment and deposition parameters i.e. films showing the lowest impedance values had the smallest area of detached film. Additionally, impedance values were measured depending on the environment temperature which showed that GO/WPA films exhibit the lowest impedance values and good sensitivity to changes of temperature making it good a candidate for sensing devices.
PB  - Belgrade : Institute of Technical Sciences of SASA
C3  - 21st Young Researchers' Conference Materials Sciences and Engineering : program and the book of abstracts
T1  - Temperature dependence of electric properties of GO and GO/WPA films on interdigital electrodes
SP  - 40
EP  - 40
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12314
ER  - 

@conference{
author = "Mravik, Željko and Pejčić, Milica and Grujičić, Marija and Rmuš Mravik, Jelena and Stević, Miša and Stević, Zoran and Jovanović, Zoran",
year = "2023",
abstract = "In sensor devices the material of choice should be highly dependent on perturbation of environmental parameters. In order to achieve good sensitivity and selectivity of sensing devices to temperature, humidity or concentration of different gasses, the materials with adjustable properties are highly desirable. Electric properties of graphene oxide (GO) can be easily tuned by modification of surface chemistry and anchoring of functional compounds onto its two-dimensional structure. Prior to application of sensing device, research and development of materials system is the most essential step. In this work, the formation of GO and GO/12-tungstophosphoric acid (WPA) films with 6 wt.% of WPA on interdigital electrodes was investigated by variation of dip-coating parameters (receding angle and time between steps). Obtained films were thermally reduced in argon atmosphere after which optical microscopy was used to evaluate morphology and stability of deposited GO and GO/WPA films. Impedance spectroscopy was used to investigate the electric properties of the obtained films in range from 10 Hz to 100 kHz. Measured impedance values were correlated to the degree of material detachment and deposition parameters i.e. films showing the lowest impedance values had the smallest area of detached film. Additionally, impedance values were measured depending on the environment temperature which showed that GO/WPA films exhibit the lowest impedance values and good sensitivity to changes of temperature making it good a candidate for sensing devices.",
publisher = "Belgrade : Institute of Technical Sciences of SASA",
journal = "21st Young Researchers' Conference Materials Sciences and Engineering : program and the book of abstracts",
title = "Temperature dependence of electric properties of GO and GO/WPA films on interdigital electrodes",
pages = "40-40",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12314"
}

Mravik, Ž., Pejčić, M., Grujičić, M., Rmuš Mravik, J., Stević, M., Stević, Z.,& Jovanović, Z.. (2023). Temperature dependence of electric properties of GO and GO/WPA films on interdigital electrodes. in 21st Young Researchers' Conference Materials Sciences and Engineering : program and the book of abstracts
Belgrade : Institute of Technical Sciences of SASA., 40-40.
https://hdl.handle.net/21.15107/rcub_vinar_12314

Mravik Ž, Pejčić M, Grujičić M, Rmuš Mravik J, Stević M, Stević Z, Jovanović Z. Temperature dependence of electric properties of GO and GO/WPA films on interdigital electrodes. in 21st Young Researchers' Conference Materials Sciences and Engineering : program and the book of abstracts. 2023;:40-40.
https://hdl.handle.net/21.15107/rcub_vinar_12314 .

Mravik, Željko, Pejčić, Milica, Grujičić, Marija, Rmuš Mravik, Jelena, Stević, Miša, Stević, Zoran, Jovanović, Zoran, "Temperature dependence of electric properties of GO and GO/WPA films on interdigital electrodes" in 21st Young Researchers' Conference Materials Sciences and Engineering : program and the book of abstracts (2023):40-40,
https://hdl.handle.net/21.15107/rcub_vinar_12314 .

TY  - CONF
AU  - Erich, Marko
AU  - Gloginjić, Marko
AU  - Mravik, Željko
AU  - Vrban, Branislav
AU  - Čerba, Štefan
AU  - Lüley, Jakub
AU  - Nečas, Vladimír
AU  - Filová, Vendula
AU  - Katovský, Karel
AU  - Štastný, Ondrej
AU  - Petrović, Srđan M.
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11068
AB  - 6H-SiC samples have been implanted by 4 MeV C and Si ions in the (0001) channeling direction to the sets of multiple implantation fluences. These samples were analyzed via Elastic Backscattering Spectroscopy in the channeling mode (EBS/C) using 1.725 MeV proton beam, from which SiC amorphization depth profiles and averaged integral 6H-SiC amorphization have been obtained. The averaged integral 6H-SiC crystal amorphization vs implanted fluence dependence has been determined for both types of implanted ions. From these dependences, the 6H-SiC integral crystal amorphization vs. implanted fluence/type of implanted atom assessment model have been proposed.
C3  - 27th International Conference on Applied Physics of Condensed Matter : APCOM 2022 : the book of abstracts; June 22 - 24; Strbske Pleso, Slovak Republic
T1  - Dependence of the 6H - SiC induced amorphization on the ion beam implanted fluence
VL  - 2778
IS  - 1
SP  - 060002
DO  - 10.1063/5.0136670
ER  - 

@conference{
author = "Erich, Marko and Gloginjić, Marko and Mravik, Željko and Vrban, Branislav and Čerba, Štefan and Lüley, Jakub and Nečas, Vladimír and Filová, Vendula and Katovský, Karel and Štastný, Ondrej and Petrović, Srđan M.",
year = "2023",
abstract = "6H-SiC samples have been implanted by 4 MeV C and Si ions in the (0001) channeling direction to the sets of multiple implantation fluences. These samples were analyzed via Elastic Backscattering Spectroscopy in the channeling mode (EBS/C) using 1.725 MeV proton beam, from which SiC amorphization depth profiles and averaged integral 6H-SiC amorphization have been obtained. The averaged integral 6H-SiC crystal amorphization vs implanted fluence dependence has been determined for both types of implanted ions. From these dependences, the 6H-SiC integral crystal amorphization vs. implanted fluence/type of implanted atom assessment model have been proposed.",
journal = "27th International Conference on Applied Physics of Condensed Matter : APCOM 2022 : the book of abstracts; June 22 - 24; Strbske Pleso, Slovak Republic",
title = "Dependence of the 6H - SiC induced amorphization on the ion beam implanted fluence",
volume = "2778",
number = "1",
pages = "060002",
doi = "10.1063/5.0136670"
}

Erich, M., Gloginjić, M., Mravik, Ž., Vrban, B., Čerba, Š., Lüley, J., Nečas, V., Filová, V., Katovský, K., Štastný, O.,& Petrović, S. M.. (2023). Dependence of the 6H - SiC induced amorphization on the ion beam implanted fluence. in 27th International Conference on Applied Physics of Condensed Matter : APCOM 2022 : the book of abstracts; June 22 - 24; Strbske Pleso, Slovak Republic, 2778(1), 060002.
https://doi.org/10.1063/5.0136670

Erich M, Gloginjić M, Mravik Ž, Vrban B, Čerba Š, Lüley J, Nečas V, Filová V, Katovský K, Štastný O, Petrović SM. Dependence of the 6H - SiC induced amorphization on the ion beam implanted fluence. in 27th International Conference on Applied Physics of Condensed Matter : APCOM 2022 : the book of abstracts; June 22 - 24; Strbske Pleso, Slovak Republic. 2023;2778(1):060002.
doi:10.1063/5.0136670 .

Erich, Marko, Gloginjić, Marko, Mravik, Željko, Vrban, Branislav, Čerba, Štefan, Lüley, Jakub, Nečas, Vladimír, Filová, Vendula, Katovský, Karel, Štastný, Ondrej, Petrović, Srđan M., "Dependence of the 6H - SiC induced amorphization on the ion beam implanted fluence" in 27th International Conference on Applied Physics of Condensed Matter : APCOM 2022 : the book of abstracts; June 22 - 24; Strbske Pleso, Slovak Republic, 2778, no. 1 (2023):060002,
https://doi.org/10.1063/5.0136670 . .

TY  - CONF
AU  - Čerba, Štefan
AU  - Vrban, Branislav
AU  - Lüley, Jakub
AU  - Filová, Vendula
AU  - Nečas, Vladimír
AU  - Štastný, Ondrej
AU  - Katovský, Karel
AU  - Mravik, Željko
AU  - Erich, Marko
AU  - Petrović, Srđan M.
AU  - Gloginjić, Marko
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11069
AB  - The Mini Labyrinth experiment is a simple neutron and gamma shielding experiment developed at Slovak University of Technology (STU), inspired by the ALARM-CF-AIR-LAB-001 ICSBEP benchmark. Compared to the original Labyrinth, which was made from concrete blocks and had dimension of several meters, the STU Mini Labyrinth is approximately ten times smaller and consists of NEUTRONSTOP shielding blocks. So far, several versions and modifications of the Mini Labyrinth have been investigated, currently the V2-25-L version is used for code evaluation. This version uses a PuBe neutron source loaded in the entrance of the Mini Labyrinth, a plastic tank filled with light water moderator and the NuDET plastic scintillation neutron detector, which can be placed around the experimental workplace. This detector has a significant role in the experiment since it is a calibration apparatus and provides real time data on the rates of ambient dose equivalents of neutron radiation. On the other hand, as it is a certified commercial product, the response function of this detector is unknow, which makes a significant challenge of verifying the measured data with computer codes. This paper presents a result of a series of measurements with the NuDET detector performed at STU and discusses the options, how to verify the experimental results by the SCALE6 system in the most effective way.
C3  - 27th International Conference on Applied Physics of Condensed Matter : APCOM 2022 : the book of abstracts; June 22 - 24; Strbske Pleso, Slovak Republic
T1  - Evaluation of the responses of the NuDET neutron detector in the Mini Labyrinth experiment
VL  - 2778
IS  - 1
SP  - 050002
DO  - 10.1063/5.0135854
ER  - 

@conference{
author = "Čerba, Štefan and Vrban, Branislav and Lüley, Jakub and Filová, Vendula and Nečas, Vladimír and Štastný, Ondrej and Katovský, Karel and Mravik, Željko and Erich, Marko and Petrović, Srđan M. and Gloginjić, Marko",
year = "2023",
abstract = "The Mini Labyrinth experiment is a simple neutron and gamma shielding experiment developed at Slovak University of Technology (STU), inspired by the ALARM-CF-AIR-LAB-001 ICSBEP benchmark. Compared to the original Labyrinth, which was made from concrete blocks and had dimension of several meters, the STU Mini Labyrinth is approximately ten times smaller and consists of NEUTRONSTOP shielding blocks. So far, several versions and modifications of the Mini Labyrinth have been investigated, currently the V2-25-L version is used for code evaluation. This version uses a PuBe neutron source loaded in the entrance of the Mini Labyrinth, a plastic tank filled with light water moderator and the NuDET plastic scintillation neutron detector, which can be placed around the experimental workplace. This detector has a significant role in the experiment since it is a calibration apparatus and provides real time data on the rates of ambient dose equivalents of neutron radiation. On the other hand, as it is a certified commercial product, the response function of this detector is unknow, which makes a significant challenge of verifying the measured data with computer codes. This paper presents a result of a series of measurements with the NuDET detector performed at STU and discusses the options, how to verify the experimental results by the SCALE6 system in the most effective way.",
journal = "27th International Conference on Applied Physics of Condensed Matter : APCOM 2022 : the book of abstracts; June 22 - 24; Strbske Pleso, Slovak Republic",
title = "Evaluation of the responses of the NuDET neutron detector in the Mini Labyrinth experiment",
volume = "2778",
number = "1",
pages = "050002",
doi = "10.1063/5.0135854"
}

Čerba, Š., Vrban, B., Lüley, J., Filová, V., Nečas, V., Štastný, O., Katovský, K., Mravik, Ž., Erich, M., Petrović, S. M.,& Gloginjić, M.. (2023). Evaluation of the responses of the NuDET neutron detector in the Mini Labyrinth experiment. in 27th International Conference on Applied Physics of Condensed Matter : APCOM 2022 : the book of abstracts; June 22 - 24; Strbske Pleso, Slovak Republic, 2778(1), 050002.
https://doi.org/10.1063/5.0135854

Čerba Š, Vrban B, Lüley J, Filová V, Nečas V, Štastný O, Katovský K, Mravik Ž, Erich M, Petrović SM, Gloginjić M. Evaluation of the responses of the NuDET neutron detector in the Mini Labyrinth experiment. in 27th International Conference on Applied Physics of Condensed Matter : APCOM 2022 : the book of abstracts; June 22 - 24; Strbske Pleso, Slovak Republic. 2023;2778(1):050002.
doi:10.1063/5.0135854 .

Čerba, Štefan, Vrban, Branislav, Lüley, Jakub, Filová, Vendula, Nečas, Vladimír, Štastný, Ondrej, Katovský, Karel, Mravik, Željko, Erich, Marko, Petrović, Srđan M., Gloginjić, Marko, "Evaluation of the responses of the NuDET neutron detector in the Mini Labyrinth experiment" in 27th International Conference on Applied Physics of Condensed Matter : APCOM 2022 : the book of abstracts; June 22 - 24; Strbske Pleso, Slovak Republic, 2778, no. 1 (2023):050002,
https://doi.org/10.1063/5.0135854 . .

TY  - CONF
AU  - Burian, Jiri
AU  - Čerba, Štefan
AU  - Erich, Marko
AU  - Filova, Vendula
AU  - Gloginjić, Marko
AU  - Katovsky, Karel
AU  - Kral, Dušan
AU  - Luley, Jakub
AU  - Mravik, Željko
AU  - Petrović, Srđan M.
AU  - Št'Astný, Ondřej
AU  - Vrban, Branislav
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11072
AB  - To extend the research possibilities of the nuclear research group at Brno University of Technology, a gamma radiation shielding measurement benchmark assembly was designed and built. Experimental device will be used for fine attenuation coefficient and build-up factors measurement and for easy validation of theoretical simulation and calculation of shielding properties of selected materials. Many different radioactive emitters can be used in the assembly, as well as many different detectors and materials, which might be tested, and results compared to understand well measurement results. A theoretical model was also created for the benchmark assembly and simulated in MCNP. Initial results show identical trends of values obtained by simulation and practical experiment.
C3  - 27th International Conference on Applied Physics of Condensed Matter : APCOM 2022 : the book of abstracts; June 22 - 24; Strbske Pleso, Slovak Republic
T1  - Theoretical simulation and experimental testing of advanced shielding materials properties with focus on inhomogeneity and build-up
VL  - 2778
IS  - 1
SP  - 050001
DO  - 10.1063/5.0136138
ER  - 

@conference{
author = "Burian, Jiri and Čerba, Štefan and Erich, Marko and Filova, Vendula and Gloginjić, Marko and Katovsky, Karel and Kral, Dušan and Luley, Jakub and Mravik, Željko and Petrović, Srđan M. and Št'Astný, Ondřej and Vrban, Branislav",
year = "2023",
abstract = "To extend the research possibilities of the nuclear research group at Brno University of Technology, a gamma radiation shielding measurement benchmark assembly was designed and built. Experimental device will be used for fine attenuation coefficient and build-up factors measurement and for easy validation of theoretical simulation and calculation of shielding properties of selected materials. Many different radioactive emitters can be used in the assembly, as well as many different detectors and materials, which might be tested, and results compared to understand well measurement results. A theoretical model was also created for the benchmark assembly and simulated in MCNP. Initial results show identical trends of values obtained by simulation and practical experiment.",
journal = "27th International Conference on Applied Physics of Condensed Matter : APCOM 2022 : the book of abstracts; June 22 - 24; Strbske Pleso, Slovak Republic",
title = "Theoretical simulation and experimental testing of advanced shielding materials properties with focus on inhomogeneity and build-up",
volume = "2778",
number = "1",
pages = "050001",
doi = "10.1063/5.0136138"
}

Burian, J., Čerba, Š., Erich, M., Filova, V., Gloginjić, M., Katovsky, K., Kral, D., Luley, J., Mravik, Ž., Petrović, S. M., Št'Astný, O.,& Vrban, B.. (2023). Theoretical simulation and experimental testing of advanced shielding materials properties with focus on inhomogeneity and build-up. in 27th International Conference on Applied Physics of Condensed Matter : APCOM 2022 : the book of abstracts; June 22 - 24; Strbske Pleso, Slovak Republic, 2778(1), 050001.
https://doi.org/10.1063/5.0136138

Burian J, Čerba Š, Erich M, Filova V, Gloginjić M, Katovsky K, Kral D, Luley J, Mravik Ž, Petrović SM, Št'Astný O, Vrban B. Theoretical simulation and experimental testing of advanced shielding materials properties with focus on inhomogeneity and build-up. in 27th International Conference on Applied Physics of Condensed Matter : APCOM 2022 : the book of abstracts; June 22 - 24; Strbske Pleso, Slovak Republic. 2023;2778(1):050001.
doi:10.1063/5.0136138 .

Burian, Jiri, Čerba, Štefan, Erich, Marko, Filova, Vendula, Gloginjić, Marko, Katovsky, Karel, Kral, Dušan, Luley, Jakub, Mravik, Željko, Petrović, Srđan M., Št'Astný, Ondřej, Vrban, Branislav, "Theoretical simulation and experimental testing of advanced shielding materials properties with focus on inhomogeneity and build-up" in 27th International Conference on Applied Physics of Condensed Matter : APCOM 2022 : the book of abstracts; June 22 - 24; Strbske Pleso, Slovak Republic, 2778, no. 1 (2023):050001,
https://doi.org/10.1063/5.0136138 . .

TY  - CONF
AU  - Prvulović, Milica
AU  - Babić, Bojana
AU  - Filipović, Nenad
AU  - Mravik, Željko
AU  - Milošević Govedarović, Sanja
AU  - Sekulić, Zorana
AU  - Milanović, Igor
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12313
AB  - The effect of pure Ni addition (5 wt.%) in MgH2 powder was investigated mechanochemically for short milling times (15, 30, and 45 min). Obtained MgH2-Ni system was characterized by XRD, SEM-EDS, PSD, DSC, and TPD. Compared to pure MgH2, uniform distribution of nickel reduces the temperature of H2 desorption by more than 100 °C. It is shown that influence of two important processes, grinding and catalysis, may be followed separately. We can conclude that the catalysis of H2 desorption by Ni particles on MgH2 matrix is the dominant effect for the investigated short milling times.
PB  - Belgrade : Institute of Technical Sciences of SASA
C3  - 21st Young Researchers' Conference Materials Sciences and Engineering : program and the book of abstracts
T1  - Hydrogen storage properties of MgH2-Ni system
SP  - 39
EP  - 39
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12313
ER  - 

@conference{
author = "Prvulović, Milica and Babić, Bojana and Filipović, Nenad and Mravik, Željko and Milošević Govedarović, Sanja and Sekulić, Zorana and Milanović, Igor",
year = "2023",
abstract = "The effect of pure Ni addition (5 wt.%) in MgH2 powder was investigated mechanochemically for short milling times (15, 30, and 45 min). Obtained MgH2-Ni system was characterized by XRD, SEM-EDS, PSD, DSC, and TPD. Compared to pure MgH2, uniform distribution of nickel reduces the temperature of H2 desorption by more than 100 °C. It is shown that influence of two important processes, grinding and catalysis, may be followed separately. We can conclude that the catalysis of H2 desorption by Ni particles on MgH2 matrix is the dominant effect for the investigated short milling times.",
publisher = "Belgrade : Institute of Technical Sciences of SASA",
journal = "21st Young Researchers' Conference Materials Sciences and Engineering : program and the book of abstracts",
title = "Hydrogen storage properties of MgH2-Ni system",
pages = "39-39",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12313"
}

Prvulović, M., Babić, B., Filipović, N., Mravik, Ž., Milošević Govedarović, S., Sekulić, Z.,& Milanović, I.. (2023). Hydrogen storage properties of MgH2-Ni system. in 21st Young Researchers' Conference Materials Sciences and Engineering : program and the book of abstracts
Belgrade : Institute of Technical Sciences of SASA., 39-39.
https://hdl.handle.net/21.15107/rcub_vinar_12313

Prvulović M, Babić B, Filipović N, Mravik Ž, Milošević Govedarović S, Sekulić Z, Milanović I. Hydrogen storage properties of MgH2-Ni system. in 21st Young Researchers' Conference Materials Sciences and Engineering : program and the book of abstracts. 2023;:39-39.
https://hdl.handle.net/21.15107/rcub_vinar_12313 .

Prvulović, Milica, Babić, Bojana, Filipović, Nenad, Mravik, Željko, Milošević Govedarović, Sanja, Sekulić, Zorana, Milanović, Igor, "Hydrogen storage properties of MgH2-Ni system" in 21st Young Researchers' Conference Materials Sciences and Engineering : program and the book of abstracts (2023):39-39,
https://hdl.handle.net/21.15107/rcub_vinar_12313 .

TY  - JOUR
AU  - Jovanović, Zoran
AU  - Gloginjić, Marko
AU  - Mravik, Željko
AU  - Olejniczak, Andrzej
AU  - Bajuk-Bogdanović, Danica V.
AU  - Jovanović, Sonja
AU  - Pašti, Igor A.
AU  - Skuratov, Vladimir A.
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10345
AB  - Interest in graphene oxide (GO) due to its controllable and adjustable properties has been increasing, especially in the field of electronic and electrochemical charge storage devices. Hence, the modification of surface chemistry and structure of GO can be outlined as crucial for achieving the preferable properties. In this study, we have investigated the influence of 15 keV proton-beam irradiation on GO structure and surface chemistry. The results obtained by Raman spectroscopy, Fourier-transform infrared (FTIR) and X-ray photoelectron spectroscopy (XPS) were complemented with theoretical ones, obtained by using density functional theory (DFT), semi-empirical (SE) calculations and inelastic thermal spike (iTS) model. The FTIR and XPS results showed that proton irradiation partially reduces the GO with the preferential removal of the alkoxy and epoxy groups. Also, we identified a clear linear relation between the decresase of oxygen content and the decrease of ID/IG ratio i.e. increasing disorder of GO structure. The SE and DFT calculations highlighted a reduction of GO as a single- or multi-step process depending on the type of basal-plane or edge oxygen group. Dynamic SE calculations revealed that for kinetic energy of hydrogen below 1.5 eV the reduction is chemically driven, while at energies higher than 20 eV, the reduction of GO is a result of physical processes. iTS results showed that increase of temperature might contribute to reduction of GO via desorption of epoxy and alcoxy groups, as the least thermally stable groups (T ∼200 °C). The results of this work emphasize the capabilities ion beam irradiation for gradual modification of surface chemistry and structural properties of GO by providing more information about the mechanisms of hydrogen interaction with individual groups, interplay between defect creation, oxygen content and accompaning effects of ion energy loss processes.
T2  - Radiation Physics and Chemistry
T1  - Mechanistic insights into ion-beam induced reduction of graphene oxide: An experimental and theoretical study
VL  - 199
SP  - 110355
DO  - 10.1016/j.radphyschem.2022.110355
ER  - 

@article{
author = "Jovanović, Zoran and Gloginjić, Marko and Mravik, Željko and Olejniczak, Andrzej and Bajuk-Bogdanović, Danica V. and Jovanović, Sonja and Pašti, Igor A. and Skuratov, Vladimir A.",
year = "2022",
abstract = "Interest in graphene oxide (GO) due to its controllable and adjustable properties has been increasing, especially in the field of electronic and electrochemical charge storage devices. Hence, the modification of surface chemistry and structure of GO can be outlined as crucial for achieving the preferable properties. In this study, we have investigated the influence of 15 keV proton-beam irradiation on GO structure and surface chemistry. The results obtained by Raman spectroscopy, Fourier-transform infrared (FTIR) and X-ray photoelectron spectroscopy (XPS) were complemented with theoretical ones, obtained by using density functional theory (DFT), semi-empirical (SE) calculations and inelastic thermal spike (iTS) model. The FTIR and XPS results showed that proton irradiation partially reduces the GO with the preferential removal of the alkoxy and epoxy groups. Also, we identified a clear linear relation between the decresase of oxygen content and the decrease of ID/IG ratio i.e. increasing disorder of GO structure. The SE and DFT calculations highlighted a reduction of GO as a single- or multi-step process depending on the type of basal-plane or edge oxygen group. Dynamic SE calculations revealed that for kinetic energy of hydrogen below 1.5 eV the reduction is chemically driven, while at energies higher than 20 eV, the reduction of GO is a result of physical processes. iTS results showed that increase of temperature might contribute to reduction of GO via desorption of epoxy and alcoxy groups, as the least thermally stable groups (T ∼200 °C). The results of this work emphasize the capabilities ion beam irradiation for gradual modification of surface chemistry and structural properties of GO by providing more information about the mechanisms of hydrogen interaction with individual groups, interplay between defect creation, oxygen content and accompaning effects of ion energy loss processes.",
journal = "Radiation Physics and Chemistry",
title = "Mechanistic insights into ion-beam induced reduction of graphene oxide: An experimental and theoretical study",
volume = "199",
pages = "110355",
doi = "10.1016/j.radphyschem.2022.110355"
}

Jovanović, Z., Gloginjić, M., Mravik, Ž., Olejniczak, A., Bajuk-Bogdanović, D. V., Jovanović, S., Pašti, I. A.,& Skuratov, V. A.. (2022). Mechanistic insights into ion-beam induced reduction of graphene oxide: An experimental and theoretical study. in Radiation Physics and Chemistry, 199, 110355.
https://doi.org/10.1016/j.radphyschem.2022.110355

Jovanović Z, Gloginjić M, Mravik Ž, Olejniczak A, Bajuk-Bogdanović DV, Jovanović S, Pašti IA, Skuratov VA. Mechanistic insights into ion-beam induced reduction of graphene oxide: An experimental and theoretical study. in Radiation Physics and Chemistry. 2022;199:110355.
doi:10.1016/j.radphyschem.2022.110355 .

Jovanović, Zoran, Gloginjić, Marko, Mravik, Željko, Olejniczak, Andrzej, Bajuk-Bogdanović, Danica V., Jovanović, Sonja, Pašti, Igor A., Skuratov, Vladimir A., "Mechanistic insights into ion-beam induced reduction of graphene oxide: An experimental and theoretical study" in Radiation Physics and Chemistry, 199 (2022):110355,
https://doi.org/10.1016/j.radphyschem.2022.110355 . .

TY  - CONF
AU  - Jovanović, Zoran
AU  - Bajuk-Bogdanović, Danica
AU  - Vujković, Milica
AU  - Mravik, Željko
AU  - Jovanović, Sonja
AU  - Marković, Smilja
AU  - Pejčić, Milica
AU  - Holclajtner Antunović, Ivanka
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12783
AB  - Gaining a momentum from newly emerging properties of nanomaterials the further enhancement and integration of various functionalities have been made possible. Also, it became apparent that interaction between nano-objects can provide additional synergy capable of yielding new or significantly improved properties. This particularly applies to the surfaces and interfaces of nanomaterials where the intimate contact between components amplifies possible contributions of interfacial interactions. Since this aspect of interaction-property relation in many nanocomposites is still insufficiently explored, it is of interest to identify to what extent the properties emerge as a result of interaction-based synergy or a co-action of individual components. To address these aspects, we have investigated a nanocomposite of graphene oxide (GO) and 12-tungstophosporic acid (WPA) – a combination of materials that are known for the rich “portfolio” of properties. In the talk the novel findings will be presented that contribute to better the understanding of interactions between nano-objects and how they contribute to novel properties. The results are showing how simple temperature treatment and weight ratio of components is influencing the evolution of surface, structural properties and charge storage properties – all closely connected to interactions between components. Finally, the implications on synthetic approaches and fine-tuning of the functionality of GO/WPA nanocomposites will be discussed from the perspective of the obtained results.
PB  - Belgrade : University of Belgrade, Faculty of Physical Chemistry
C3  - COIN2022 : Contemporary batteries and supercapacitors : Program and book of abstracts
T1  - The Role of Surface Chemistry, Structure and Interactions in the Electrochemical Charge Storage Properties of Graphene Oxide and 12-tungstophoshoric Acid Nanocomposites
SP  - 16
EP  - 16
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12783
ER  - 

@conference{
author = "Jovanović, Zoran and Bajuk-Bogdanović, Danica and Vujković, Milica and Mravik, Željko and Jovanović, Sonja and Marković, Smilja and Pejčić, Milica and Holclajtner Antunović, Ivanka",
year = "2022",
abstract = "Gaining a momentum from newly emerging properties of nanomaterials the further enhancement and integration of various functionalities have been made possible. Also, it became apparent that interaction between nano-objects can provide additional synergy capable of yielding new or significantly improved properties. This particularly applies to the surfaces and interfaces of nanomaterials where the intimate contact between components amplifies possible contributions of interfacial interactions. Since this aspect of interaction-property relation in many nanocomposites is still insufficiently explored, it is of interest to identify to what extent the properties emerge as a result of interaction-based synergy or a co-action of individual components. To address these aspects, we have investigated a nanocomposite of graphene oxide (GO) and 12-tungstophosporic acid (WPA) – a combination of materials that are known for the rich “portfolio” of properties. In the talk the novel findings will be presented that contribute to better the understanding of interactions between nano-objects and how they contribute to novel properties. The results are showing how simple temperature treatment and weight ratio of components is influencing the evolution of surface, structural properties and charge storage properties – all closely connected to interactions between components. Finally, the implications on synthetic approaches and fine-tuning of the functionality of GO/WPA nanocomposites will be discussed from the perspective of the obtained results.",
publisher = "Belgrade : University of Belgrade, Faculty of Physical Chemistry",
journal = "COIN2022 : Contemporary batteries and supercapacitors : Program and book of abstracts",
title = "The Role of Surface Chemistry, Structure and Interactions in the Electrochemical Charge Storage Properties of Graphene Oxide and 12-tungstophoshoric Acid Nanocomposites",
pages = "16-16",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12783"
}

Jovanović, Z., Bajuk-Bogdanović, D., Vujković, M., Mravik, Ž., Jovanović, S., Marković, S., Pejčić, M.,& Holclajtner Antunović, I.. (2022). The Role of Surface Chemistry, Structure and Interactions in the Electrochemical Charge Storage Properties of Graphene Oxide and 12-tungstophoshoric Acid Nanocomposites. in COIN2022 : Contemporary batteries and supercapacitors : Program and book of abstracts
Belgrade : University of Belgrade, Faculty of Physical Chemistry., 16-16.
https://hdl.handle.net/21.15107/rcub_vinar_12783

Jovanović Z, Bajuk-Bogdanović D, Vujković M, Mravik Ž, Jovanović S, Marković S, Pejčić M, Holclajtner Antunović I. The Role of Surface Chemistry, Structure and Interactions in the Electrochemical Charge Storage Properties of Graphene Oxide and 12-tungstophoshoric Acid Nanocomposites. in COIN2022 : Contemporary batteries and supercapacitors : Program and book of abstracts. 2022;:16-16.
https://hdl.handle.net/21.15107/rcub_vinar_12783 .

Jovanović, Zoran, Bajuk-Bogdanović, Danica, Vujković, Milica, Mravik, Željko, Jovanović, Sonja, Marković, Smilja, Pejčić, Milica, Holclajtner Antunović, Ivanka, "The Role of Surface Chemistry, Structure and Interactions in the Electrochemical Charge Storage Properties of Graphene Oxide and 12-tungstophoshoric Acid Nanocomposites" in COIN2022 : Contemporary batteries and supercapacitors : Program and book of abstracts (2022):16-16,
https://hdl.handle.net/21.15107/rcub_vinar_12783 .

TY  - JOUR
AU  - Grujičić, Marija
AU  - Mravik, Željko
AU  - Bajuk-Bogdanović, Danica
AU  - Vengust, Damjan
AU  - Jovanović, Zoran M.
AU  - Stojković Simatović, Ivana
AU  - Jovanović, Sonja
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12756
AB  - U ovom radu prikazana su elektrohemijska svojstva kompozita grafen-oksida i nanočestica kobalt-ferita, kao i kobalt-ferita dopiranog sa cinkom i galijumom. Grafen-oksid (GO) sintetisan je modifikovanom Hamerovom metodom. Magnetne nanočestice sintetisane su solvotermalnom metodom, nakon čega je izvršena izmena oleinske kiseline dihidrokofeinskom kiselinom sa ciljem dobijanja hidrofilnog materijala. Kompoziti grafen-oksida i magnetnih nanočestica sintetisani su hidrotermalnom metodom, prilikom čega je udeo magnetnih čestica bio 5 i 15 težinskih % u odnosu na grafen-oksid. Rezultati rendgeno-strukturne i FTIR analize potvrdili su potpunu oksidaciju grafenskih slojeva. SEM i TEM analize pokazale su depoziciju magnetnih nanočestica na sloju grafen-oksida, bez promene veličine ili oblika nanočestica. FTIR analiza hidrotemalno tretiranog grafen-oksida i kompozita pokazala je da dolazi do delimične redukcije epoksi grupa, kao i da se uspostavlja vodonična veza između komponenti kompozita. Ciklovoltamogrami pokazuju da su kompoziti stabilni pri brzinama polarizacije od 5 do 400 mV s-1, kao i da je njihov kapacitet pretežno pseudokapacitivne prirode. Pseudokapacitivnost potiče od oksidoredukcionih reakcija H+ jona iz elektrolita i površinskih funkcionalnih grupa grafen oksida. Na osnovu ciklovoltamograma izračunati su specifični kapaciteti svih kompozita, pri čemu je najveću vrednost pokazao kompozit CFO_GO_15% koja iznosi 36,86 F g-1 pri brzini polarizacije od 5 mV s-1.
AB  - This paper presents the electrochemical properties of graphene-oxide composites and nanoparticles of cobalt-ferrite, as well as cobalt-ferrite doped with zinc and gallium. Graphene-oxide (GO) was synthesized by a modified Hummer's method. The magnetic nanoparticles were synthesized by the solvothermal method, after which the oleic acid was exchanged with dihydrocaffeic acid to obtain the hydrophilic material. Composites of graphene-oxide and magnetic nanoparticles were synthesized by the hydrothermal method, where the share of magnetic particles was 5 and 15 wt.% on graphene-oxide. The results of X-ray structural and FTIR analysis confirmed the complete oxidation of graphene layers. SEM and TEM analyzes showed deposition of magnetic nanoparticles on the graphene-oxide layer, without changing the size or shape of the nanoparticles. FTIR analysis of hydrothermally treated graphene oxide and composites showed that there is a partial reduction of epoxy groups, also a hydrogen bond is established between the components of the composite. Cyclic voltammograms show that the composites are stable at polarization rates of 5-400 mV s-1, and that their capacity is predominantly pseudocapacitive in nature. Pseudocapacitance originates from the oxidoreduction reactions of H+ ions from electrolytes and surface functional groups of graphene-oxide. Based on the cyclic voltammograms, the specific capacities of all composites were calculated and the highest value being shown by the CFO_GO_15% composite, which is 36.86 F g-1 at a polarization rate of 5 mV s-1.
T2  - Tehnika
T1  - Elektrohemijska svojstva kompozita grafen-oksida i kobalt-ferita dopiranog cinkom i galijumom
T1  - Electrochemical properties of composites of graphene-oxide and cobalt-ferrite doped with zink and gallium
VL  - 77
IS  - 2
SP  - 155
EP  - 162
DO  - 10.5937/tehnika2202155G
ER  - 

@article{
author = "Grujičić, Marija and Mravik, Željko and Bajuk-Bogdanović, Danica and Vengust, Damjan and Jovanović, Zoran M. and Stojković Simatović, Ivana and Jovanović, Sonja",
year = "2022",
abstract = "U ovom radu prikazana su elektrohemijska svojstva kompozita grafen-oksida i nanočestica kobalt-ferita, kao i kobalt-ferita dopiranog sa cinkom i galijumom. Grafen-oksid (GO) sintetisan je modifikovanom Hamerovom metodom. Magnetne nanočestice sintetisane su solvotermalnom metodom, nakon čega je izvršena izmena oleinske kiseline dihidrokofeinskom kiselinom sa ciljem dobijanja hidrofilnog materijala. Kompoziti grafen-oksida i magnetnih nanočestica sintetisani su hidrotermalnom metodom, prilikom čega je udeo magnetnih čestica bio 5 i 15 težinskih % u odnosu na grafen-oksid. Rezultati rendgeno-strukturne i FTIR analize potvrdili su potpunu oksidaciju grafenskih slojeva. SEM i TEM analize pokazale su depoziciju magnetnih nanočestica na sloju grafen-oksida, bez promene veličine ili oblika nanočestica. FTIR analiza hidrotemalno tretiranog grafen-oksida i kompozita pokazala je da dolazi do delimične redukcije epoksi grupa, kao i da se uspostavlja vodonična veza između komponenti kompozita. Ciklovoltamogrami pokazuju da su kompoziti stabilni pri brzinama polarizacije od 5 do 400 mV s-1, kao i da je njihov kapacitet pretežno pseudokapacitivne prirode. Pseudokapacitivnost potiče od oksidoredukcionih reakcija H+ jona iz elektrolita i površinskih funkcionalnih grupa grafen oksida. Na osnovu ciklovoltamograma izračunati su specifični kapaciteti svih kompozita, pri čemu je najveću vrednost pokazao kompozit CFO_GO_15% koja iznosi 36,86 F g-1 pri brzini polarizacije od 5 mV s-1., This paper presents the electrochemical properties of graphene-oxide composites and nanoparticles of cobalt-ferrite, as well as cobalt-ferrite doped with zinc and gallium. Graphene-oxide (GO) was synthesized by a modified Hummer's method. The magnetic nanoparticles were synthesized by the solvothermal method, after which the oleic acid was exchanged with dihydrocaffeic acid to obtain the hydrophilic material. Composites of graphene-oxide and magnetic nanoparticles were synthesized by the hydrothermal method, where the share of magnetic particles was 5 and 15 wt.% on graphene-oxide. The results of X-ray structural and FTIR analysis confirmed the complete oxidation of graphene layers. SEM and TEM analyzes showed deposition of magnetic nanoparticles on the graphene-oxide layer, without changing the size or shape of the nanoparticles. FTIR analysis of hydrothermally treated graphene oxide and composites showed that there is a partial reduction of epoxy groups, also a hydrogen bond is established between the components of the composite. Cyclic voltammograms show that the composites are stable at polarization rates of 5-400 mV s-1, and that their capacity is predominantly pseudocapacitive in nature. Pseudocapacitance originates from the oxidoreduction reactions of H+ ions from electrolytes and surface functional groups of graphene-oxide. Based on the cyclic voltammograms, the specific capacities of all composites were calculated and the highest value being shown by the CFO_GO_15% composite, which is 36.86 F g-1 at a polarization rate of 5 mV s-1.",
journal = "Tehnika",
title = "Elektrohemijska svojstva kompozita grafen-oksida i kobalt-ferita dopiranog cinkom i galijumom, Electrochemical properties of composites of graphene-oxide and cobalt-ferrite doped with zink and gallium",
volume = "77",
number = "2",
pages = "155-162",
doi = "10.5937/tehnika2202155G"
}

Grujičić, M., Mravik, Ž., Bajuk-Bogdanović, D., Vengust, D., Jovanović, Z. M., Stojković Simatović, I.,& Jovanović, S.. (2022). Elektrohemijska svojstva kompozita grafen-oksida i kobalt-ferita dopiranog cinkom i galijumom. in Tehnika, 77(2), 155-162.
https://doi.org/10.5937/tehnika2202155G

Grujičić M, Mravik Ž, Bajuk-Bogdanović D, Vengust D, Jovanović ZM, Stojković Simatović I, Jovanović S. Elektrohemijska svojstva kompozita grafen-oksida i kobalt-ferita dopiranog cinkom i galijumom. in Tehnika. 2022;77(2):155-162.
doi:10.5937/tehnika2202155G .

Grujičić, Marija, Mravik, Željko, Bajuk-Bogdanović, Danica, Vengust, Damjan, Jovanović, Zoran M., Stojković Simatović, Ivana, Jovanović, Sonja, "Elektrohemijska svojstva kompozita grafen-oksida i kobalt-ferita dopiranog cinkom i galijumom" in Tehnika, 77, no. 2 (2022):155-162,
https://doi.org/10.5937/tehnika2202155G . .

TY  - CONF
AU  - Grujičić, Marija
AU  - Mravik, Željko
AU  - Bajuk-Bogdanović, Danica
AU  - Vengust, Damjan
AU  - Jovanović, Zoran
AU  - Stojković Simatović, Ivana
AU  - Jovanović, Sonja
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12757
AB  - The possibility of surface functionalization and formation of stable aqueous suspensions make graphene oxide (GO) suitable as base for composite materials, especially with nanoparticles. Cobalt ferrite (CFO) has attracted attention due to its unique properties such as large magnetic anisotropy, high coercivity, moderate saturation magnetization, excellent chemical stability, mechanical hardness, etc. This study presents the electrochemical properties of GO and CFO composites, as well as CFO doped with zinc (CFO_Zn) and gallium (CFO_Ga). Magnetic nanoparticles were synthesized using the solvothermal method, after which the oleic acid was exchanged with dihydrocaffeic acid to obtain the hydrophilic material. GO was synthesized using a modified Hummer's method. Composites of GO and magnetic nanoparticles were synthesized by the hydrothermal method (T = 120 °C, t = 3 h), with nominal fractions of 5 and 15 wt.% of magnetic nanoparticles. X-ray structural diffraction, as well as FTIR analysis, confirmed the complete oxidation of graphene layers. SEM and TEM images showed deposition of magnetic nanoparticles on GO layer with the different distribution density between 5 wt.% and 15 wt.% composites. Also, shape and size of magnetic nanoparticles remained unchanged. Based on FTIR analysis of hydrothermally treated GO and composites a partial reduction of epoxy groups was found along with hydrogen bond established between the components of the composite. The electrochemical charge storage of composites is mainly of pseudocapacitive nature, which originates from the oxidoreduction reactions of H+ ions from electrolytes and surface functional groups of GO. The best electrochemical properties, in terms of the highest specific capacity, were shown by the composite which contains 15 wt.% CFO, which value is 36.86 F g-1 at a polarization rate of 5 mV s-1
PB  - Belgrade : Materials Research Society of Serbia – MRS-Serbia
C3  - 23rd annual conference - YUCOMAT 2022 & 12th World Round Table Conference on Sintering - WRTCS 2022 : Program and Book of Abstracts
T1  - Electrochemical properties of composites of graphene oxide and cobalt ferrite doped with zink and gallium
VL  - XLV
SP  - 135
EP  - 135
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12757
ER  - 

@conference{
author = "Grujičić, Marija and Mravik, Željko and Bajuk-Bogdanović, Danica and Vengust, Damjan and Jovanović, Zoran and Stojković Simatović, Ivana and Jovanović, Sonja",
year = "2022",
abstract = "The possibility of surface functionalization and formation of stable aqueous suspensions make graphene oxide (GO) suitable as base for composite materials, especially with nanoparticles. Cobalt ferrite (CFO) has attracted attention due to its unique properties such as large magnetic anisotropy, high coercivity, moderate saturation magnetization, excellent chemical stability, mechanical hardness, etc. This study presents the electrochemical properties of GO and CFO composites, as well as CFO doped with zinc (CFO_Zn) and gallium (CFO_Ga). Magnetic nanoparticles were synthesized using the solvothermal method, after which the oleic acid was exchanged with dihydrocaffeic acid to obtain the hydrophilic material. GO was synthesized using a modified Hummer's method. Composites of GO and magnetic nanoparticles were synthesized by the hydrothermal method (T = 120 °C, t = 3 h), with nominal fractions of 5 and 15 wt.% of magnetic nanoparticles. X-ray structural diffraction, as well as FTIR analysis, confirmed the complete oxidation of graphene layers. SEM and TEM images showed deposition of magnetic nanoparticles on GO layer with the different distribution density between 5 wt.% and 15 wt.% composites. Also, shape and size of magnetic nanoparticles remained unchanged. Based on FTIR analysis of hydrothermally treated GO and composites a partial reduction of epoxy groups was found along with hydrogen bond established between the components of the composite. The electrochemical charge storage of composites is mainly of pseudocapacitive nature, which originates from the oxidoreduction reactions of H+ ions from electrolytes and surface functional groups of GO. The best electrochemical properties, in terms of the highest specific capacity, were shown by the composite which contains 15 wt.% CFO, which value is 36.86 F g-1 at a polarization rate of 5 mV s-1",
publisher = "Belgrade : Materials Research Society of Serbia – MRS-Serbia",
journal = "23rd annual conference - YUCOMAT 2022 & 12th World Round Table Conference on Sintering - WRTCS 2022 : Program and Book of Abstracts",
title = "Electrochemical properties of composites of graphene oxide and cobalt ferrite doped with zink and gallium",
volume = "XLV",
pages = "135-135",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12757"
}

Grujičić, M., Mravik, Ž., Bajuk-Bogdanović, D., Vengust, D., Jovanović, Z., Stojković Simatović, I.,& Jovanović, S.. (2022). Electrochemical properties of composites of graphene oxide and cobalt ferrite doped with zink and gallium. in 23rd annual conference - YUCOMAT 2022 & 12th World Round Table Conference on Sintering - WRTCS 2022 : Program and Book of Abstracts
Belgrade : Materials Research Society of Serbia – MRS-Serbia., XLV, 135-135.
https://hdl.handle.net/21.15107/rcub_vinar_12757

Grujičić M, Mravik Ž, Bajuk-Bogdanović D, Vengust D, Jovanović Z, Stojković Simatović I, Jovanović S. Electrochemical properties of composites of graphene oxide and cobalt ferrite doped with zink and gallium. in 23rd annual conference - YUCOMAT 2022 & 12th World Round Table Conference on Sintering - WRTCS 2022 : Program and Book of Abstracts. 2022;XLV:135-135.
https://hdl.handle.net/21.15107/rcub_vinar_12757 .

Grujičić, Marija, Mravik, Željko, Bajuk-Bogdanović, Danica, Vengust, Damjan, Jovanović, Zoran, Stojković Simatović, Ivana, Jovanović, Sonja, "Electrochemical properties of composites of graphene oxide and cobalt ferrite doped with zink and gallium" in 23rd annual conference - YUCOMAT 2022 & 12th World Round Table Conference on Sintering - WRTCS 2022 : Program and Book of Abstracts, XLV (2022):135-135,
https://hdl.handle.net/21.15107/rcub_vinar_12757 .

TY  - JOUR
AU  - Mravik, Željko
AU  - Bajuk-Bogdanović, Danica V.
AU  - Jovanović, Sonja
AU  - Rmuš, Jelena
AU  - Olejniczak, Andrzej
AU  - Mraković, Ana Đ.
AU  - Lazarević, Jasmina
AU  - Uskoković-Marković, Snežana
AU  - Lazarević, Nenad
AU  - Skuratov, Vladimir A.
AU  - Jovanović, Zoran
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10376
AB  - Ion beam irradiation is a versatile tool for structural modification andengineering of new materials. In this study, 12-tungstophosphoric acid (WPA)films of different thickness were spin-coated on platinized silicon substrate andirradiated with low energy hydrogen ions (10 keV) and swift heavy ions (Bi,Xe, and V) with energies up to 710 MeV. The different energy/fluence combi-nations allowed controllable structural changes that were investigated in detailusing Raman and Infrared spectroscopy. For 120-nm-thick WPA samples, theirradiation led to the decrease of intensity of the skeletal and W-Oc-W bands ofKeggin anion in order: Bi < V < Xe (for their applied energy/fluence combina-tion). Also, symmetry change of Keggin anion similar to the one observed inthe case of Keggin anions interacting with the supports was observed. For theselected ion beam irradiation parameters, xenon ion beam induced transforma-tion of WPA to polytungstate. For 20-μm-thick WPA samples, the irradiationwith hydrogen ion beam induced changes of skeletal vibrations and increasedindividualistic behavior of Keggin anions. As the fluence increased, theamount of the Keggin anions partially transformed to bronze also increased.Irradiation with vanadium also caused transformation to bronze-like structurebut with higher ratio of terminal W=Odbonds. The overall results show clearReceived: 9 February 2022Revised: 17 June 2022Accepted: 5 July 2022DOI: 10.1002/jrs.6423J Raman Spectrosc.2022;1–11.wileyonlinelibrary.com/journal/jrs© 2022 John Wiley & Sons Ltd.1correlation between degree of structural modification of WPA and thecalculated displacement per atom value. These results open possibilities forengineering new catalytically active structures of polyoxometalates with thehelp of ion beams.
T2  - Journal of Raman Spectroscopy
T1  - Modification of Keggin anion structure with ion beams—A new spectroscopic insights into the effects of keV- and MeV-ion beam irradiation on 12-tungstophosphoric acid
DO  - 10.1002/jrs.6423
ER  - 

@article{
author = "Mravik, Željko and Bajuk-Bogdanović, Danica V. and Jovanović, Sonja and Rmuš, Jelena and Olejniczak, Andrzej and Mraković, Ana Đ. and Lazarević, Jasmina and Uskoković-Marković, Snežana and Lazarević, Nenad and Skuratov, Vladimir A. and Jovanović, Zoran",
year = "2022",
abstract = "Ion beam irradiation is a versatile tool for structural modification andengineering of new materials. In this study, 12-tungstophosphoric acid (WPA)films of different thickness were spin-coated on platinized silicon substrate andirradiated with low energy hydrogen ions (10 keV) and swift heavy ions (Bi,Xe, and V) with energies up to 710 MeV. The different energy/fluence combi-nations allowed controllable structural changes that were investigated in detailusing Raman and Infrared spectroscopy. For 120-nm-thick WPA samples, theirradiation led to the decrease of intensity of the skeletal and W-Oc-W bands ofKeggin anion in order: Bi < V < Xe (for their applied energy/fluence combina-tion). Also, symmetry change of Keggin anion similar to the one observed inthe case of Keggin anions interacting with the supports was observed. For theselected ion beam irradiation parameters, xenon ion beam induced transforma-tion of WPA to polytungstate. For 20-μm-thick WPA samples, the irradiationwith hydrogen ion beam induced changes of skeletal vibrations and increasedindividualistic behavior of Keggin anions. As the fluence increased, theamount of the Keggin anions partially transformed to bronze also increased.Irradiation with vanadium also caused transformation to bronze-like structurebut with higher ratio of terminal W=Odbonds. The overall results show clearReceived: 9 February 2022Revised: 17 June 2022Accepted: 5 July 2022DOI: 10.1002/jrs.6423J Raman Spectrosc.2022;1–11.wileyonlinelibrary.com/journal/jrs© 2022 John Wiley & Sons Ltd.1correlation between degree of structural modification of WPA and thecalculated displacement per atom value. These results open possibilities forengineering new catalytically active structures of polyoxometalates with thehelp of ion beams.",
journal = "Journal of Raman Spectroscopy",
title = "Modification of Keggin anion structure with ion beams—A new spectroscopic insights into the effects of keV- and MeV-ion beam irradiation on 12-tungstophosphoric acid",
doi = "10.1002/jrs.6423"
}

Mravik, Ž., Bajuk-Bogdanović, D. V., Jovanović, S., Rmuš, J., Olejniczak, A., Mraković, A. Đ., Lazarević, J., Uskoković-Marković, S., Lazarević, N., Skuratov, V. A.,& Jovanović, Z.. (2022). Modification of Keggin anion structure with ion beams—A new spectroscopic insights into the effects of keV- and MeV-ion beam irradiation on 12-tungstophosphoric acid. in Journal of Raman Spectroscopy.
https://doi.org/10.1002/jrs.6423

Mravik Ž, Bajuk-Bogdanović DV, Jovanović S, Rmuš J, Olejniczak A, Mraković AĐ, Lazarević J, Uskoković-Marković S, Lazarević N, Skuratov VA, Jovanović Z. Modification of Keggin anion structure with ion beams—A new spectroscopic insights into the effects of keV- and MeV-ion beam irradiation on 12-tungstophosphoric acid. in Journal of Raman Spectroscopy. 2022;.
doi:10.1002/jrs.6423 .

Mravik, Željko, Bajuk-Bogdanović, Danica V., Jovanović, Sonja, Rmuš, Jelena, Olejniczak, Andrzej, Mraković, Ana Đ., Lazarević, Jasmina, Uskoković-Marković, Snežana, Lazarević, Nenad, Skuratov, Vladimir A., Jovanović, Zoran, "Modification of Keggin anion structure with ion beams—A new spectroscopic insights into the effects of keV- and MeV-ion beam irradiation on 12-tungstophosphoric acid" in Journal of Raman Spectroscopy (2022),
https://doi.org/10.1002/jrs.6423 . .

TY  - CONF
AU  - Jelić, Marko
AU  - Mravik, Željko
AU  - Jovanović, Zoran
AU  - Jovanović, Sonja
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12429
AB  - Photoeletrochemical (PEC) water splitting is a promising method for clean energy production and different oxide materials have been explored to find the right solution. Among them, as one of the most promising photoanode materials, bismuth vanadate (BiVO4) has attracted a lot of attention due to the suitable band gap edge alignment, lowcost synthesis method and great visible light harvesting features. Nowdays, research related to the BiVO4 is mostly oriented towards repairing poor charge transfer properties which exist due to the high rate of electron–hole recombination. Metal doping is one of the strategies to improve these intrinsic drawbacks. Herein, we report physicochemical properties of solvothermaly sinthesized pristine BiVO4, 1%-, 2.5%- and 5%- Cu-doped BiVO4 powders at 180 ºC for 8 h. X-ray diffraction (XRD) study indicates that, depending on the degree of doping, material exists in monoclinic or tetragonal scheelite phase. Pure monoclinic phase was formed in a case of pristine, 1%- and 2.5%- Cu doped samples. After doping with 5 %, phase transition occurred and material showed tetragonal phase. Scanning electron microscopy (SEM) reveals that samples with monoclinic phase consists of worm-like and prismatic structures while tetragonal samples exhibited spherical shape. Furthermore, structure was examined with Raman and FTIR spectroscopy. The results were in accordance with diffraction study where band positions were well matched with phase composition. Optical properties were characterized with UV–Vis diffuse reflectance spectroscopy (DRS) and photoluminescence (PL) spectroscopy. Monoclinic samples showed band gap around 2.4 eV, while sample with tetragonal phase has band gap around 2.8 eV. PL showed that that monoclinic samples possess better recombination features than tetragonal ones. Photoelectrochemical measurements suggest that material is sensitive towards visible light and, after doping, improved its performance towards oxygen evolution reaction.
PB  - Serbian Chemical Society and Serbian Young Chemists’ Club
C3  - 8th Conference of Young Chemists of Serbia : Book of abstracts
T1  - Solvothermaly synthesized copper doped bismuth vanadate
SP  - 124
EP  - 124
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12429
ER  - 

@conference{
author = "Jelić, Marko and Mravik, Željko and Jovanović, Zoran and Jovanović, Sonja",
year = "2022",
abstract = "Photoeletrochemical (PEC) water splitting is a promising method for clean energy production and different oxide materials have been explored to find the right solution. Among them, as one of the most promising photoanode materials, bismuth vanadate (BiVO4) has attracted a lot of attention due to the suitable band gap edge alignment, lowcost synthesis method and great visible light harvesting features. Nowdays, research related to the BiVO4 is mostly oriented towards repairing poor charge transfer properties which exist due to the high rate of electron–hole recombination. Metal doping is one of the strategies to improve these intrinsic drawbacks. Herein, we report physicochemical properties of solvothermaly sinthesized pristine BiVO4, 1%-, 2.5%- and 5%- Cu-doped BiVO4 powders at 180 ºC for 8 h. X-ray diffraction (XRD) study indicates that, depending on the degree of doping, material exists in monoclinic or tetragonal scheelite phase. Pure monoclinic phase was formed in a case of pristine, 1%- and 2.5%- Cu doped samples. After doping with 5 %, phase transition occurred and material showed tetragonal phase. Scanning electron microscopy (SEM) reveals that samples with monoclinic phase consists of worm-like and prismatic structures while tetragonal samples exhibited spherical shape. Furthermore, structure was examined with Raman and FTIR spectroscopy. The results were in accordance with diffraction study where band positions were well matched with phase composition. Optical properties were characterized with UV–Vis diffuse reflectance spectroscopy (DRS) and photoluminescence (PL) spectroscopy. Monoclinic samples showed band gap around 2.4 eV, while sample with tetragonal phase has band gap around 2.8 eV. PL showed that that monoclinic samples possess better recombination features than tetragonal ones. Photoelectrochemical measurements suggest that material is sensitive towards visible light and, after doping, improved its performance towards oxygen evolution reaction.",
publisher = "Serbian Chemical Society and Serbian Young Chemists’ Club",
journal = "8th Conference of Young Chemists of Serbia : Book of abstracts",
title = "Solvothermaly synthesized copper doped bismuth vanadate",
pages = "124-124",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12429"
}

Jelić, M., Mravik, Ž., Jovanović, Z.,& Jovanović, S.. (2022). Solvothermaly synthesized copper doped bismuth vanadate. in 8th Conference of Young Chemists of Serbia : Book of abstracts
Serbian Chemical Society and Serbian Young Chemists’ Club., 124-124.
https://hdl.handle.net/21.15107/rcub_vinar_12429

Jelić M, Mravik Ž, Jovanović Z, Jovanović S. Solvothermaly synthesized copper doped bismuth vanadate. in 8th Conference of Young Chemists of Serbia : Book of abstracts. 2022;:124-124.
https://hdl.handle.net/21.15107/rcub_vinar_12429 .

Jelić, Marko, Mravik, Željko, Jovanović, Zoran, Jovanović, Sonja, "Solvothermaly synthesized copper doped bismuth vanadate" in 8th Conference of Young Chemists of Serbia : Book of abstracts (2022):124-124,
https://hdl.handle.net/21.15107/rcub_vinar_12429 .

TY  - JOUR
AU  - Janošević-Ležaić, Aleksandra
AU  - Bajuk-Bogdanović, Danica V.
AU  - Krstić, Jugoslav B.
AU  - Jovanović, Zoran
AU  - Mravik, Željko
AU  - Kovač, Janez
AU  - Gavrilov, Nemanja
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10213
AB  - Transformation of tannic acid (TA), a cheap, abundant and environmentally friendly (by)product, upon carbonization at various temperatures was examined as it is extensively being used in energy storing devices. In addition of reviling what is happening with TA upon carbonization, a step further has been taken to scrutinize the role of carbonized TA (CTA) playing in energy storage composites. Increasing the carbonization temperature from 500 ◦C to 800 ◦C led to a nine orders of magnitude increase in conductivity, from 9⋅10–9 S cm
T2  - Fuel
T1  - What role does carbonized tannic acid play in energy storage composites?
VL  - 312
DO  - 10.1016/j.fuel.2021.122930
ER  - 

@article{
author = "Janošević-Ležaić, Aleksandra and Bajuk-Bogdanović, Danica V. and Krstić, Jugoslav B. and Jovanović, Zoran and Mravik, Željko and Kovač, Janez and Gavrilov, Nemanja",
year = "2022",
abstract = "Transformation of tannic acid (TA), a cheap, abundant and environmentally friendly (by)product, upon carbonization at various temperatures was examined as it is extensively being used in energy storing devices. In addition of reviling what is happening with TA upon carbonization, a step further has been taken to scrutinize the role of carbonized TA (CTA) playing in energy storage composites. Increasing the carbonization temperature from 500 ◦C to 800 ◦C led to a nine orders of magnitude increase in conductivity, from 9⋅10–9 S cm",
journal = "Fuel",
title = "What role does carbonized tannic acid play in energy storage composites?",
volume = "312",
doi = "10.1016/j.fuel.2021.122930"
}

Janošević-Ležaić, A., Bajuk-Bogdanović, D. V., Krstić, J. B., Jovanović, Z., Mravik, Ž., Kovač, J.,& Gavrilov, N.. (2022). What role does carbonized tannic acid play in energy storage composites?. in Fuel, 312.
https://doi.org/10.1016/j.fuel.2021.122930

Janošević-Ležaić A, Bajuk-Bogdanović DV, Krstić JB, Jovanović Z, Mravik Ž, Kovač J, Gavrilov N. What role does carbonized tannic acid play in energy storage composites?. in Fuel. 2022;312.
doi:10.1016/j.fuel.2021.122930 .

Janošević-Ležaić, Aleksandra, Bajuk-Bogdanović, Danica V., Krstić, Jugoslav B., Jovanović, Zoran, Mravik, Željko, Kovač, Janez, Gavrilov, Nemanja, "What role does carbonized tannic acid play in energy storage composites?" in Fuel, 312 (2022),
https://doi.org/10.1016/j.fuel.2021.122930 . .

TY  - JOUR
AU  - Čerba, Štefan
AU  - Vrban, Branislav
AU  - Lüley, Jakub
AU  - Nečas, Vladimír
AU  - Štastný, Ondřej
AU  - Filova, Vendula
AU  - Katovský, Karel
AU  - Gloginić, Marko
AU  - Mravik, Željko
AU  - Erich, Marko
AU  - Petrović, Srđan M.
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10403
AB  - One of the most effective ways of gaining user experience and minimizing user effects on modelling and simulation is benchmarking. Currently (2022) a new experimental workplace, the so called 'Mini Labyrinth' is being developed at Slovak University of Technology in Bratislava (STU). It is a simple neutron and gamma shielding benchmark, inspired by the ALARM-CF-AIR-LAB-001 ICSBEP experiment. The latest V2 setup consists of a PuBe neutron source, several NEUTRONSTOP C5 shielding blocks, H2O filled polylactic acid (PLA) tank, plastic source holder and detectors placed inside and outside the Mini Labyrinth. This paper is focused on the monitoring of the radiation doses around the workplace using the NuDET neutron detector and on the comparison of the measured quantities with ones simulated by SCALE 6 MONACO. The influence of the size of the model and the definition of the detector is studied in this analysis. The achieved results are presented and some discussions on further needed development are also included.
T2  - Radiation Protection Dosimetry
T1  - Measurement and simulation of the radiation doses around the 'mini labyrinth' experimental workplace at stu
VL  - 198
IS  - 9-11
SP  - 628
EP  - 633
DO  - 10.1093/rpd/ncac109
ER  - 

@article{
author = "Čerba, Štefan and Vrban, Branislav and Lüley, Jakub and Nečas, Vladimír and Štastný, Ondřej and Filova, Vendula and Katovský, Karel and Gloginić, Marko and Mravik, Željko and Erich, Marko and Petrović, Srđan M.",
year = "2022",
abstract = "One of the most effective ways of gaining user experience and minimizing user effects on modelling and simulation is benchmarking. Currently (2022) a new experimental workplace, the so called 'Mini Labyrinth' is being developed at Slovak University of Technology in Bratislava (STU). It is a simple neutron and gamma shielding benchmark, inspired by the ALARM-CF-AIR-LAB-001 ICSBEP experiment. The latest V2 setup consists of a PuBe neutron source, several NEUTRONSTOP C5 shielding blocks, H2O filled polylactic acid (PLA) tank, plastic source holder and detectors placed inside and outside the Mini Labyrinth. This paper is focused on the monitoring of the radiation doses around the workplace using the NuDET neutron detector and on the comparison of the measured quantities with ones simulated by SCALE 6 MONACO. The influence of the size of the model and the definition of the detector is studied in this analysis. The achieved results are presented and some discussions on further needed development are also included.",
journal = "Radiation Protection Dosimetry",
title = "Measurement and simulation of the radiation doses around the 'mini labyrinth' experimental workplace at stu",
volume = "198",
number = "9-11",
pages = "628-633",
doi = "10.1093/rpd/ncac109"
}

Čerba, Š., Vrban, B., Lüley, J., Nečas, V., Štastný, O., Filova, V., Katovský, K., Gloginić, M., Mravik, Ž., Erich, M.,& Petrović, S. M.. (2022). Measurement and simulation of the radiation doses around the 'mini labyrinth' experimental workplace at stu. in Radiation Protection Dosimetry, 198(9-11), 628-633.
https://doi.org/10.1093/rpd/ncac109

Čerba Š, Vrban B, Lüley J, Nečas V, Štastný O, Filova V, Katovský K, Gloginić M, Mravik Ž, Erich M, Petrović SM. Measurement and simulation of the radiation doses around the 'mini labyrinth' experimental workplace at stu. in Radiation Protection Dosimetry. 2022;198(9-11):628-633.
doi:10.1093/rpd/ncac109 .

Čerba, Štefan, Vrban, Branislav, Lüley, Jakub, Nečas, Vladimír, Štastný, Ondřej, Filova, Vendula, Katovský, Karel, Gloginić, Marko, Mravik, Željko, Erich, Marko, Petrović, Srđan M., "Measurement and simulation of the radiation doses around the 'mini labyrinth' experimental workplace at stu" in Radiation Protection Dosimetry, 198, no. 9-11 (2022):628-633,
https://doi.org/10.1093/rpd/ncac109 . .

TY  - JOUR
AU  - Gloginjić, Marko
AU  - Erich, Marko
AU  - Mravik, Željko
AU  - Vrban, Branislav
AU  - Čerba, Štefan
AU  - Lüley, Jakub
AU  - Filová, Vendula
AU  - Katovský, Karel
AU  - Štastný, Ondej
AU  - Burian, Jiri
AU  - Petrović, Srđan M.
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10523
AB  - Due to its unique material properties, such as extreme hardness and radiation resistance, silicon carbide has been used as an important construction material for environments with extreme conditions, like those present in nuclear reactors. As such, it is constantly exposed to energetic particles (e.g., neutrons) and consequently subjected to gradual crystal lattice degradation. In this article, the 6H-SiC crystal damage has been simulated by the implantation of 4 MeV C3+ ions in the (0001) axial direction of a single 6H-SiC crystal to the ion fluences of 1.359 1015 cm-2, 6.740 1015 cm-2, and 2.02 1016 cm-2. These implanted samples were subsequently analyzed by Rutherford and elastic backscattering spectrometry in the channeling orientation (RBS/C & EBS/C) by the usage of 1 MeV protons. Obtained spectra were analyzed by channeling simulation phenomenological computer code (CSIM) to obtain quantitative crystal damage depth profiles. The difference between the positions of damage profile maxima obtained by CSIM code and one simulated with stopping and range of ions in matter (SRIM), a Monte Carlo based computer code focused on ion implantation simulation in random crystal direction only, is about 10%. Therefore, due to small profile depth shifts, the usage of the iterative procedure for calculating crystal damage depth profiles is proposed. It was shown that profiles obtained by iterative procedure show very good agreement with the ones obtained with CSIM code. Additionally, with the introduction of channeling to random energy loss ratio the energy to depth profile scale conversion, the agreement with CSIM profiles becomes excellent.
T2  - Nuclear Technology and Radiation Protection
T1  - Comparative study of the MeV ion channeling implantation induced damage in 6H-SiC by the iterative procedure and phenomenological CSIM computer code
VL  - 37
IS  - 2
SP  - 128
EP  - 137
DO  - 10.2298/NTRP2202128G
ER  - 

@article{
author = "Gloginjić, Marko and Erich, Marko and Mravik, Željko and Vrban, Branislav and Čerba, Štefan and Lüley, Jakub and Filová, Vendula and Katovský, Karel and Štastný, Ondej and Burian, Jiri and Petrović, Srđan M.",
year = "2022",
abstract = "Due to its unique material properties, such as extreme hardness and radiation resistance, silicon carbide has been used as an important construction material for environments with extreme conditions, like those present in nuclear reactors. As such, it is constantly exposed to energetic particles (e.g., neutrons) and consequently subjected to gradual crystal lattice degradation. In this article, the 6H-SiC crystal damage has been simulated by the implantation of 4 MeV C3+ ions in the (0001) axial direction of a single 6H-SiC crystal to the ion fluences of 1.359 1015 cm-2, 6.740 1015 cm-2, and 2.02 1016 cm-2. These implanted samples were subsequently analyzed by Rutherford and elastic backscattering spectrometry in the channeling orientation (RBS/C & EBS/C) by the usage of 1 MeV protons. Obtained spectra were analyzed by channeling simulation phenomenological computer code (CSIM) to obtain quantitative crystal damage depth profiles. The difference between the positions of damage profile maxima obtained by CSIM code and one simulated with stopping and range of ions in matter (SRIM), a Monte Carlo based computer code focused on ion implantation simulation in random crystal direction only, is about 10%. Therefore, due to small profile depth shifts, the usage of the iterative procedure for calculating crystal damage depth profiles is proposed. It was shown that profiles obtained by iterative procedure show very good agreement with the ones obtained with CSIM code. Additionally, with the introduction of channeling to random energy loss ratio the energy to depth profile scale conversion, the agreement with CSIM profiles becomes excellent.",
journal = "Nuclear Technology and Radiation Protection",
title = "Comparative study of the MeV ion channeling implantation induced damage in 6H-SiC by the iterative procedure and phenomenological CSIM computer code",
volume = "37",
number = "2",
pages = "128-137",
doi = "10.2298/NTRP2202128G"
}

Gloginjić, M., Erich, M., Mravik, Ž., Vrban, B., Čerba, Š., Lüley, J., Filová, V., Katovský, K., Štastný, O., Burian, J.,& Petrović, S. M.. (2022). Comparative study of the MeV ion channeling implantation induced damage in 6H-SiC by the iterative procedure and phenomenological CSIM computer code. in Nuclear Technology and Radiation Protection, 37(2), 128-137.
https://doi.org/10.2298/NTRP2202128G

Gloginjić M, Erich M, Mravik Ž, Vrban B, Čerba Š, Lüley J, Filová V, Katovský K, Štastný O, Burian J, Petrović SM. Comparative study of the MeV ion channeling implantation induced damage in 6H-SiC by the iterative procedure and phenomenological CSIM computer code. in Nuclear Technology and Radiation Protection. 2022;37(2):128-137.
doi:10.2298/NTRP2202128G .

Gloginjić, Marko, Erich, Marko, Mravik, Željko, Vrban, Branislav, Čerba, Štefan, Lüley, Jakub, Filová, Vendula, Katovský, Karel, Štastný, Ondej, Burian, Jiri, Petrović, Srđan M., "Comparative study of the MeV ion channeling implantation induced damage in 6H-SiC by the iterative procedure and phenomenological CSIM computer code" in Nuclear Technology and Radiation Protection, 37, no. 2 (2022):128-137,
https://doi.org/10.2298/NTRP2202128G . .

TY  - CONF
AU  - Gloginjić, Marko
AU  - Erich, Marko
AU  - Mravik, Željko
AU  - Vrban, Branislav
AU  - Čerba, Štefan
AU  - Lüley, Jakub
AU  - Filová, Vendula
AU  - Katovský, Karel
AU  - Štastný, Ondřej
AU  - Burian, Jiří
AU  - Petrović, Srđan M.
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10822
AB  - During the ion implantation process, regardless if it was attentional or not, amorphization will be introduced into the crystal structure. Depending on the chosen ions, different quantities of the amorphization will be introduced for the same applied fluences. In order to estimate the total amorphization of the SiC crystal for different ions and fluences combination, an assessment model was proposed. For this purpose, 4 MeV carbon and silicon ions with multiple fluences were implanted in the [0001] axial direction of a 6H-SiC single crystal. The amorphization depth distributions were obtained by Elastic Backscattering Spectroscopy/channeling spectra analysis via Channeling SIMulation (CSIM) phenomenological computer code. As a result, relation of the total induced amorphization and implantation fluences for carbon and silicon ions were obtained. Based on these experimental results, a total amorphization assessment model for different ions (energy of 4 MeV) and fluences combination was established.
PB  - Belgrade : Serbian Ceramic Society
C3  - Advanced Ceramics and Application : 10th Serbian Ceramic Society Conference : program and the book of abstracts; September 26-27, 2022; Belgrade
T1  - Correlation of the total induced amorphization in SiC crystal with the ion implantation fluence
SP  - 82
UR  - https://hdl.handle.net/21.15107/rcub_vinar_10822
ER  - 

@conference{
author = "Gloginjić, Marko and Erich, Marko and Mravik, Željko and Vrban, Branislav and Čerba, Štefan and Lüley, Jakub and Filová, Vendula and Katovský, Karel and Štastný, Ondřej and Burian, Jiří and Petrović, Srđan M.",
year = "2022",
abstract = "During the ion implantation process, regardless if it was attentional or not, amorphization will be introduced into the crystal structure. Depending on the chosen ions, different quantities of the amorphization will be introduced for the same applied fluences. In order to estimate the total amorphization of the SiC crystal for different ions and fluences combination, an assessment model was proposed. For this purpose, 4 MeV carbon and silicon ions with multiple fluences were implanted in the [0001] axial direction of a 6H-SiC single crystal. The amorphization depth distributions were obtained by Elastic Backscattering Spectroscopy/channeling spectra analysis via Channeling SIMulation (CSIM) phenomenological computer code. As a result, relation of the total induced amorphization and implantation fluences for carbon and silicon ions were obtained. Based on these experimental results, a total amorphization assessment model for different ions (energy of 4 MeV) and fluences combination was established.",
publisher = "Belgrade : Serbian Ceramic Society",
journal = "Advanced Ceramics and Application : 10th Serbian Ceramic Society Conference : program and the book of abstracts; September 26-27, 2022; Belgrade",
title = "Correlation of the total induced amorphization in SiC crystal with the ion implantation fluence",
pages = "82",
url = "https://hdl.handle.net/21.15107/rcub_vinar_10822"
}

Gloginjić, M., Erich, M., Mravik, Ž., Vrban, B., Čerba, Š., Lüley, J., Filová, V., Katovský, K., Štastný, O., Burian, J.,& Petrović, S. M.. (2022). Correlation of the total induced amorphization in SiC crystal with the ion implantation fluence. in Advanced Ceramics and Application : 10th Serbian Ceramic Society Conference : program and the book of abstracts; September 26-27, 2022; Belgrade
Belgrade : Serbian Ceramic Society., 82.
https://hdl.handle.net/21.15107/rcub_vinar_10822

Gloginjić M, Erich M, Mravik Ž, Vrban B, Čerba Š, Lüley J, Filová V, Katovský K, Štastný O, Burian J, Petrović SM. Correlation of the total induced amorphization in SiC crystal with the ion implantation fluence. in Advanced Ceramics and Application : 10th Serbian Ceramic Society Conference : program and the book of abstracts; September 26-27, 2022; Belgrade. 2022;:82.
https://hdl.handle.net/21.15107/rcub_vinar_10822 .

Gloginjić, Marko, Erich, Marko, Mravik, Željko, Vrban, Branislav, Čerba, Štefan, Lüley, Jakub, Filová, Vendula, Katovský, Karel, Štastný, Ondřej, Burian, Jiří, Petrović, Srđan M., "Correlation of the total induced amorphization in SiC crystal with the ion implantation fluence" in Advanced Ceramics and Application : 10th Serbian Ceramic Society Conference : program and the book of abstracts; September 26-27, 2022; Belgrade (2022):82,
https://hdl.handle.net/21.15107/rcub_vinar_10822 .

TY  - CONF
AU  - Katovsky, Karel
AU  - Burian, Jiří
AU  - Čerba, Štefan
AU  - Erich, Marko
AU  - Filová, Vendula
AU  - Gloginjić, Marko
AU  - Lüley, Jakub
AU  - Mravik, Željko
AU  - Petrović, Srđan
AU  - Šťastný, Ondřej
AU  - Vrban, Branislav
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12491
AB  - Neutron activation measurement using set of thin foils from highly pure materials is a method known for decades. Using shielding materials like cadmium might add an extra information about neutron field which causes the activation. We very often use relation of activity of bare foil to the activity of the same foil covered by cadmium, and call it cadmium ratio or cadmium spectral index. We could use the same way to define another spectral indices like gadolinium ratio, hafnium ratio, boron ratio, etc. Manipulation with some specific materials like pure gadolinium, samarium, dysprosium or even boron is difficult, sometimes impossible. We introduce and tested method of ion implantation of neutron shielding material directly to the activation foil, and thus redefine spectral index as a ratio between activity of foil without implanted absorber to the activity with implanted absorber. For thicker layers of absorber another method, a vapor deposition, was used and tested. Activities are tested in systems with different neutron spectra, and compared with theoretical models and MCNP simulations.
C3  - APCOM 2022 : 27th International Conference on Applied Physics of Condensed Matter : Book of abstracts
T1  - Neutron Field Spectral Indices Investigation Using Activation Foils Modified by Ion Implantation and Vapor Deposition
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12491
ER  - 

@conference{
author = "Katovsky, Karel and Burian, Jiří and Čerba, Štefan and Erich, Marko and Filová, Vendula and Gloginjić, Marko and Lüley, Jakub and Mravik, Željko and Petrović, Srđan and Šťastný, Ondřej and Vrban, Branislav",
year = "2022",
abstract = "Neutron activation measurement using set of thin foils from highly pure materials is a method known for decades. Using shielding materials like cadmium might add an extra information about neutron field which causes the activation. We very often use relation of activity of bare foil to the activity of the same foil covered by cadmium, and call it cadmium ratio or cadmium spectral index. We could use the same way to define another spectral indices like gadolinium ratio, hafnium ratio, boron ratio, etc. Manipulation with some specific materials like pure gadolinium, samarium, dysprosium or even boron is difficult, sometimes impossible. We introduce and tested method of ion implantation of neutron shielding material directly to the activation foil, and thus redefine spectral index as a ratio between activity of foil without implanted absorber to the activity with implanted absorber. For thicker layers of absorber another method, a vapor deposition, was used and tested. Activities are tested in systems with different neutron spectra, and compared with theoretical models and MCNP simulations.",
journal = "APCOM 2022 : 27th International Conference on Applied Physics of Condensed Matter : Book of abstracts",
title = "Neutron Field Spectral Indices Investigation Using Activation Foils Modified by Ion Implantation and Vapor Deposition",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12491"
}

Katovsky, K., Burian, J., Čerba, Š., Erich, M., Filová, V., Gloginjić, M., Lüley, J., Mravik, Ž., Petrović, S., Šťastný, O.,& Vrban, B.. (2022). Neutron Field Spectral Indices Investigation Using Activation Foils Modified by Ion Implantation and Vapor Deposition. in APCOM 2022 : 27th International Conference on Applied Physics of Condensed Matter : Book of abstracts.
https://hdl.handle.net/21.15107/rcub_vinar_12491

Katovsky K, Burian J, Čerba Š, Erich M, Filová V, Gloginjić M, Lüley J, Mravik Ž, Petrović S, Šťastný O, Vrban B. Neutron Field Spectral Indices Investigation Using Activation Foils Modified by Ion Implantation and Vapor Deposition. in APCOM 2022 : 27th International Conference on Applied Physics of Condensed Matter : Book of abstracts. 2022;.
https://hdl.handle.net/21.15107/rcub_vinar_12491 .

Katovsky, Karel, Burian, Jiří, Čerba, Štefan, Erich, Marko, Filová, Vendula, Gloginjić, Marko, Lüley, Jakub, Mravik, Željko, Petrović, Srđan, Šťastný, Ondřej, Vrban, Branislav, "Neutron Field Spectral Indices Investigation Using Activation Foils Modified by Ion Implantation and Vapor Deposition" in APCOM 2022 : 27th International Conference on Applied Physics of Condensed Matter : Book of abstracts (2022),
https://hdl.handle.net/21.15107/rcub_vinar_12491 .

TY  - CONF
AU  - Burian, Jiří
AU  - Čerba, Štefan
AU  - Erich, Marko
AU  - Filová, Vendula
AU  - Gloginjić, Marko
AU  - Katovský, Karel
AU  - Luley, Jakub
AU  - Mravik, Željko
AU  - Nečas, Vladimír
AU  - Petrović, Srđan
AU  - Šťastný, Ondřej
AU  - Vrban, Branislav
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12497
AB  - With regard to progress achieved in computation methods of ionizing radiation transport in various materials, there is increased need for validation of such computer codes with experiments. Therefore, special measurement equipment has been built at Brno University of Technology. It serves for experimental determination of attenuation coefficients of various shielding materials. Special focus is put on inhomogeneous materials, new composites, and non-standard shielding bricks which are usually used for various inside shielding reinforcement. Various measurements methods are tested, different detectors (gas filled, semi-conductor, scintillation, etc.) are used. Dependence on measurement geometry is also tested. Basic build-up factor measurements have also been done and its investigation will continue. Experimental results are then compared with values obtained by Monte Carlo methods based codes such as MCNP and PHITS. Results are then compared with literature and possibility of the methodology further utilization is discussed in conclusions.
C3  - DRO 2021 - Dny radiační ochrany XLII : Book of abstracts
T1  - Precise experimental determination of attenuation coefficient and its simulation
SP  - 131
EP  - 131
DO  - 10.14311/DRO.2021.XLII
ER  - 

@conference{
author = "Burian, Jiří and Čerba, Štefan and Erich, Marko and Filová, Vendula and Gloginjić, Marko and Katovský, Karel and Luley, Jakub and Mravik, Željko and Nečas, Vladimír and Petrović, Srđan and Šťastný, Ondřej and Vrban, Branislav",
year = "2022",
abstract = "With regard to progress achieved in computation methods of ionizing radiation transport in various materials, there is increased need for validation of such computer codes with experiments. Therefore, special measurement equipment has been built at Brno University of Technology. It serves for experimental determination of attenuation coefficients of various shielding materials. Special focus is put on inhomogeneous materials, new composites, and non-standard shielding bricks which are usually used for various inside shielding reinforcement. Various measurements methods are tested, different detectors (gas filled, semi-conductor, scintillation, etc.) are used. Dependence on measurement geometry is also tested. Basic build-up factor measurements have also been done and its investigation will continue. Experimental results are then compared with values obtained by Monte Carlo methods based codes such as MCNP and PHITS. Results are then compared with literature and possibility of the methodology further utilization is discussed in conclusions.",
journal = "DRO 2021 - Dny radiační ochrany XLII : Book of abstracts",
title = "Precise experimental determination of attenuation coefficient and its simulation",
pages = "131-131",
doi = "10.14311/DRO.2021.XLII"
}

Burian, J., Čerba, Š., Erich, M., Filová, V., Gloginjić, M., Katovský, K., Luley, J., Mravik, Ž., Nečas, V., Petrović, S., Šťastný, O.,& Vrban, B.. (2022). Precise experimental determination of attenuation coefficient and its simulation. in DRO 2021 - Dny radiační ochrany XLII : Book of abstracts, 131-131.
https://doi.org/10.14311/DRO.2021.XLII

Burian J, Čerba Š, Erich M, Filová V, Gloginjić M, Katovský K, Luley J, Mravik Ž, Nečas V, Petrović S, Šťastný O, Vrban B. Precise experimental determination of attenuation coefficient and its simulation. in DRO 2021 - Dny radiační ochrany XLII : Book of abstracts. 2022;:131-131.
doi:10.14311/DRO.2021.XLII .

Burian, Jiří, Čerba, Štefan, Erich, Marko, Filová, Vendula, Gloginjić, Marko, Katovský, Karel, Luley, Jakub, Mravik, Željko, Nečas, Vladimír, Petrović, Srđan, Šťastný, Ondřej, Vrban, Branislav, "Precise experimental determination of attenuation coefficient and its simulation" in DRO 2021 - Dny radiační ochrany XLII : Book of abstracts (2022):131-131,
https://doi.org/10.14311/DRO.2021.XLII . .

TY  - CONF
AU  - Čerba, Štefan
AU  - Vrban, Branislav
AU  - Luley, Jakub
AU  - Nečas, Vladimír
AU  - Katovský, Karel
AU  - Šťastný, Ondřej
AU  - Filová, Vendula
AU  - Gloginjić, Marko
AU  - Erich, Marko
AU  - Mravik, Željko
AU  - Petrović, Srđan
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12500
AB  - Since World War II there has been a significant development of methods and approaches used in the calculation of radiation shielding. Over time, modelling and simulation of relevant effects shifted from an analytical modelling to methods based on the so-called primary principles and their stochastic nature. Even nowadays it is necessary to know the accuracy of available computation codes, used nuclear data and it is desirable to evaluate the influence of the user on the final calculated parameter. One of the most effective ways of gaining user experience and minimizing user effects on the results of calculation is international collaboration comprising the designing and constructing of relevant benchmark experiments, following simulation with state-of-the-art calculation tools, comparison of work group results and subsequent identification of the source of observed deviations from the experiment. Currently a new experimental workplace, the so called “Mini Labyrinth” is being developed at STU. It is a simple neutron and gamma shielding benchmark, inspired by the ALARM-CF-AIR-LAB-001 ICSBEP experiment. The latest V1 experimental setup consists of a PuBe neutron source, several NEUTRONSTOP C5 shielding blocks (polyethylene with 5 % boron), H2O filled PLA tank, plastic source holder, and detectors placed inside the Mini Labyrinth and around the experimental workplace. This paper is indeed focused on the monitoring of the radiation doses around the workplace using the NUVIATEC NUDET detector and the Thermo Scientific RadEye personal dose meter, as well as on the comparison of the measured quantities with ones simulated by MONACO (as a part of SCALE 6.2.4 system) and MCNP 6. The influence of different cross-section libraries and propagation of cross-section uncertainties is studied through this shielding analysis. The achieved results are included and finally, some discussions on further needed development are also included.
C3  - DRO 2021 - Dny radiační ochrany XLII : Book of abstracts
T1  - Monitoring of the radiation doses around the mini labyrinth experimental workspace at STU
SP  - 24
EP  - 24
DO  - 10.14311/DRO.2021.XLII
ER  - 

@conference{
author = "Čerba, Štefan and Vrban, Branislav and Luley, Jakub and Nečas, Vladimír and Katovský, Karel and Šťastný, Ondřej and Filová, Vendula and Gloginjić, Marko and Erich, Marko and Mravik, Željko and Petrović, Srđan",
year = "2022",
abstract = "Since World War II there has been a significant development of methods and approaches used in the calculation of radiation shielding. Over time, modelling and simulation of relevant effects shifted from an analytical modelling to methods based on the so-called primary principles and their stochastic nature. Even nowadays it is necessary to know the accuracy of available computation codes, used nuclear data and it is desirable to evaluate the influence of the user on the final calculated parameter. One of the most effective ways of gaining user experience and minimizing user effects on the results of calculation is international collaboration comprising the designing and constructing of relevant benchmark experiments, following simulation with state-of-the-art calculation tools, comparison of work group results and subsequent identification of the source of observed deviations from the experiment. Currently a new experimental workplace, the so called “Mini Labyrinth” is being developed at STU. It is a simple neutron and gamma shielding benchmark, inspired by the ALARM-CF-AIR-LAB-001 ICSBEP experiment. The latest V1 experimental setup consists of a PuBe neutron source, several NEUTRONSTOP C5 shielding blocks (polyethylene with 5 % boron), H2O filled PLA tank, plastic source holder, and detectors placed inside the Mini Labyrinth and around the experimental workplace. This paper is indeed focused on the monitoring of the radiation doses around the workplace using the NUVIATEC NUDET detector and the Thermo Scientific RadEye personal dose meter, as well as on the comparison of the measured quantities with ones simulated by MONACO (as a part of SCALE 6.2.4 system) and MCNP 6. The influence of different cross-section libraries and propagation of cross-section uncertainties is studied through this shielding analysis. The achieved results are included and finally, some discussions on further needed development are also included.",
journal = "DRO 2021 - Dny radiační ochrany XLII : Book of abstracts",
title = "Monitoring of the radiation doses around the mini labyrinth experimental workspace at STU",
pages = "24-24",
doi = "10.14311/DRO.2021.XLII"
}

Čerba, Š., Vrban, B., Luley, J., Nečas, V., Katovský, K., Šťastný, O., Filová, V., Gloginjić, M., Erich, M., Mravik, Ž.,& Petrović, S.. (2022). Monitoring of the radiation doses around the mini labyrinth experimental workspace at STU. in DRO 2021 - Dny radiační ochrany XLII : Book of abstracts, 24-24.
https://doi.org/10.14311/DRO.2021.XLII

Čerba Š, Vrban B, Luley J, Nečas V, Katovský K, Šťastný O, Filová V, Gloginjić M, Erich M, Mravik Ž, Petrović S. Monitoring of the radiation doses around the mini labyrinth experimental workspace at STU. in DRO 2021 - Dny radiační ochrany XLII : Book of abstracts. 2022;:24-24.
doi:10.14311/DRO.2021.XLII .

Čerba, Štefan, Vrban, Branislav, Luley, Jakub, Nečas, Vladimír, Katovský, Karel, Šťastný, Ondřej, Filová, Vendula, Gloginjić, Marko, Erich, Marko, Mravik, Željko, Petrović, Srđan, "Monitoring of the radiation doses around the mini labyrinth experimental workspace at STU" in DRO 2021 - Dny radiační ochrany XLII : Book of abstracts (2022):24-24,
https://doi.org/10.14311/DRO.2021.XLII . .

TY  - JOUR
AU  - Vrban, Branislav
AU  - Čerba, Štefan
AU  - Lüley, Jakub
AU  - Nečas, Vladimír
AU  - Filova, Vendula
AU  - Katovský, Karel
AU  - Štastný, Ondrej
AU  - Gloginjić, Marko
AU  - Erich, Marko
AU  - Mravik, Željko
AU  - Petrović, Srdjan
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10498
AB  - The Mini Labyrinth experiment is a neutron and gamma shielding experiment currently being developed at the Slovak University of Technology, Bratislava (STU). The STU Mini Labyrinth consists of NEUTRONSTOP shielding blocks, water tank, PuBe neutron source, and graphite prism. This article describes the second construction version of the Mini Labyrinth experiment and presents the newest results of the neutron and gamma fields’ simulation and measurement. The PuBe neutron source with the emission rate of 1.06E7 $\textn\cdot \texts^-1$ was used in the experiment. The measurement of gamma ambient dose equivalent H*(10) and neutron count rates is performed by the Thermo Scientific RadEye portable survey meter and the SNM-11 BF3-filled corona detector. The simulation part was carried out using the state-of-the-art MCNP6 and SCALE6 MONACO stochastic calculation tools, considering the detailed geometry of the Mini Labyrinth and a combined neutron and gamma source of particles. The comparisons were performed between codes and the experiment. The propagation of cross-sectional uncertainties was investigated through the shielding analysis. Almost perfect agreements between simulation codes were achieved. The comparison with measurement suggests the further needs of room effect assessment.
T2  - IEEE Transactions on Nuclear Science
T1  - The Mini Labyrinth Benchmark for Radiation Protection and Shielding Analysis
VL  - 69
IS  - 4
SP  - 745
EP  - 752
DO  - 10.1109/TNS.2022.3144838
ER  - 

@article{
author = "Vrban, Branislav and Čerba, Štefan and Lüley, Jakub and Nečas, Vladimír and Filova, Vendula and Katovský, Karel and Štastný, Ondrej and Gloginjić, Marko and Erich, Marko and Mravik, Željko and Petrović, Srdjan",
year = "2022",
abstract = "The Mini Labyrinth experiment is a neutron and gamma shielding experiment currently being developed at the Slovak University of Technology, Bratislava (STU). The STU Mini Labyrinth consists of NEUTRONSTOP shielding blocks, water tank, PuBe neutron source, and graphite prism. This article describes the second construction version of the Mini Labyrinth experiment and presents the newest results of the neutron and gamma fields’ simulation and measurement. The PuBe neutron source with the emission rate of 1.06E7 $\textn\cdot \texts^-1$ was used in the experiment. The measurement of gamma ambient dose equivalent H*(10) and neutron count rates is performed by the Thermo Scientific RadEye portable survey meter and the SNM-11 BF3-filled corona detector. The simulation part was carried out using the state-of-the-art MCNP6 and SCALE6 MONACO stochastic calculation tools, considering the detailed geometry of the Mini Labyrinth and a combined neutron and gamma source of particles. The comparisons were performed between codes and the experiment. The propagation of cross-sectional uncertainties was investigated through the shielding analysis. Almost perfect agreements between simulation codes were achieved. The comparison with measurement suggests the further needs of room effect assessment.",
journal = "IEEE Transactions on Nuclear Science",
title = "The Mini Labyrinth Benchmark for Radiation Protection and Shielding Analysis",
volume = "69",
number = "4",
pages = "745-752",
doi = "10.1109/TNS.2022.3144838"
}

Vrban, B., Čerba, Š., Lüley, J., Nečas, V., Filova, V., Katovský, K., Štastný, O., Gloginjić, M., Erich, M., Mravik, Ž.,& Petrović, S.. (2022). The Mini Labyrinth Benchmark for Radiation Protection and Shielding Analysis. in IEEE Transactions on Nuclear Science, 69(4), 745-752.
https://doi.org/10.1109/TNS.2022.3144838

Vrban B, Čerba Š, Lüley J, Nečas V, Filova V, Katovský K, Štastný O, Gloginjić M, Erich M, Mravik Ž, Petrović S. The Mini Labyrinth Benchmark for Radiation Protection and Shielding Analysis. in IEEE Transactions on Nuclear Science. 2022;69(4):745-752.
doi:10.1109/TNS.2022.3144838 .

Vrban, Branislav, Čerba, Štefan, Lüley, Jakub, Nečas, Vladimír, Filova, Vendula, Katovský, Karel, Štastný, Ondrej, Gloginjić, Marko, Erich, Marko, Mravik, Željko, Petrović, Srdjan, "The Mini Labyrinth Benchmark for Radiation Protection and Shielding Analysis" in IEEE Transactions on Nuclear Science, 69, no. 4 (2022):745-752,
https://doi.org/10.1109/TNS.2022.3144838 . .