Kokunešoski, M., Kićević, D., Šaponjić, Đ., Ilić, S., Egelja, A., Šaponjić, A.,& Bučevac, D.. (2022). Primena metil metakrilata u izradi keramičkog zavrtnja mašinskom obradom ispresaka. in Univerzitet u Beogradu, Institut za nuklearne nauke "Vinča", Institut od nacionalnog značaja za Republiku Srbiju.
https://hdl.handle.net/21.15107/rcub_vinar_11416

Kokunešoski M, Kićević D, Šaponjić Đ, Ilić S, Egelja A, Šaponjić A, Bučevac D. Primena metil metakrilata u izradi keramičkog zavrtnja mašinskom obradom ispresaka. in Univerzitet u Beogradu, Institut za nuklearne nauke "Vinča", Institut od nacionalnog značaja za Republiku Srbiju. 2022;.
https://hdl.handle.net/21.15107/rcub_vinar_11416 .

Kokunešoski, Maja, Kićević, Dušan, Šaponjić, Đorđe, Ilić, Svetlana, Egelja, Adela, Šaponjić, Aleksandra, Bučevac, Dušan, "Primena metil metakrilata u izradi keramičkog zavrtnja mašinskom obradom ispresaka" in Univerzitet u Beogradu, Institut za nuklearne nauke "Vinča", Institut od nacionalnog značaja za Republiku Srbiju (2022),
https://hdl.handle.net/21.15107/rcub_vinar_11416 .

TY  - CONF
AU  - Kokunešoski, Maja
AU  - Baščarević, Zvezdana
AU  - Ilić, Svetlana
AU  - Valenta-Šobot, Ana
AU  - Grce, Ana
AU  - Pošarac-Marković, Milica
AU  - Šaponjić, Đorđe
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11290
AB  - The template method synthesis of both SBA-15 materials with elongated and spherical particles was performed using a surfactant Pluronic P123. The HCl (p.a.) was used to synthesize material with elongated particles connected in chain structures grouped into shapes resembling sheaves of wheat. In the synthesis of spherical SBA-15 with diameters ranging from 0.5 to 2 μm, a spent HCl solution which was obtained after chemical treatment of clay was used where the dominant presence of the spheres was confirmed by the SEM method. In addition to the methods mentioned above, XRD, EDS and FTIR methods characterize SBA-15 materials.
PB  - Society of Physical Chemists of Serbia
C3  - PHYSICAL CHEMISTRY 2021 : 15th international conference on fundamental and applied aspects of physical chemistry
T1  - The influence of hydrochloric acid on the features of SBA-15 particles
VL  - II
SP  - 438
EP  - 441
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11290
ER  - 

@conference{
author = "Kokunešoski, Maja and Baščarević, Zvezdana and Ilić, Svetlana and Valenta-Šobot, Ana and Grce, Ana and Pošarac-Marković, Milica and Šaponjić, Đorđe",
year = "2021",
abstract = "The template method synthesis of both SBA-15 materials with elongated and spherical particles was performed using a surfactant Pluronic P123. The HCl (p.a.) was used to synthesize material with elongated particles connected in chain structures grouped into shapes resembling sheaves of wheat. In the synthesis of spherical SBA-15 with diameters ranging from 0.5 to 2 μm, a spent HCl solution which was obtained after chemical treatment of clay was used where the dominant presence of the spheres was confirmed by the SEM method. In addition to the methods mentioned above, XRD, EDS and FTIR methods characterize SBA-15 materials.",
publisher = "Society of Physical Chemists of Serbia",
journal = "PHYSICAL CHEMISTRY 2021 : 15th international conference on fundamental and applied aspects of physical chemistry",
title = "The influence of hydrochloric acid on the features of SBA-15 particles",
volume = "II",
pages = "438-441",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11290"
}

Kokunešoski, M., Baščarević, Z., Ilić, S., Valenta-Šobot, A., Grce, A., Pošarac-Marković, M.,& Šaponjić, Đ.. (2021). The influence of hydrochloric acid on the features of SBA-15 particles. in PHYSICAL CHEMISTRY 2021 : 15th international conference on fundamental and applied aspects of physical chemistry
Society of Physical Chemists of Serbia., II, 438-441.
https://hdl.handle.net/21.15107/rcub_vinar_11290

Kokunešoski M, Baščarević Z, Ilić S, Valenta-Šobot A, Grce A, Pošarac-Marković M, Šaponjić Đ. The influence of hydrochloric acid on the features of SBA-15 particles. in PHYSICAL CHEMISTRY 2021 : 15th international conference on fundamental and applied aspects of physical chemistry. 2021;II:438-441.
https://hdl.handle.net/21.15107/rcub_vinar_11290 .

Kokunešoski, Maja, Baščarević, Zvezdana, Ilić, Svetlana, Valenta-Šobot, Ana, Grce, Ana, Pošarac-Marković, Milica, Šaponjić, Đorđe, "The influence of hydrochloric acid on the features of SBA-15 particles" in PHYSICAL CHEMISTRY 2021 : 15th international conference on fundamental and applied aspects of physical chemistry, II (2021):438-441,
https://hdl.handle.net/21.15107/rcub_vinar_11290 .

TY  - JOUR
AU  - Kokunešoski, Maja
AU  - Stanković, Miroslav
AU  - Vuković, Marina
AU  - Majstorović, Jelena
AU  - Šaponjić, Đorđe
AU  - Ilić, Svetlana
AU  - Šaponjić, Aleksandra
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9790
AB  - Macroporous silica ceramic was obtained using clay and diatomite. Boric acid as a low-cost additive in the amount of 1 wt% was used. These porous materials were obtained at low forming pressure (40-80 MPa) and lower sintering temperature (850-1300 ºC) for 4h in air. The influence of boric acid, forming pressure, and sintering temperature on the microstructure, porosity parameters, and mechanical properties of obtained porous monoliths were investigated. As-received and the modified samples were characterized by X-ray diffraction, FTIR, SEM, and mercury porosimetry measurements. As for modified clay and diatomite, they were pressed at 60 MPa and then sintered at 1150 ºC, obtaining porosities of about 10 % and 60 %, respectively. Both of the analyzed samples had the pore diameter in the range of macroporous materials. The pore diameters of clay samples are ranging from 0.1-10 μm, whereas the pore diameter of diatomite samples was slightly lower with values ranging from 0.05-5 μm. Modified diatomite samples have a lower Young modulus in comparison to modified clay samples.
T2  - Science of Sintering
T1  - Macroporous monoliths based оn natural mineral sources, clay аnd diatomite
VL  - 52
IS  - 3
SP  - 339
EP  - 348
DO  - 10.2298/SOS2003339K
ER  - 

@article{
author = "Kokunešoski, Maja and Stanković, Miroslav and Vuković, Marina and Majstorović, Jelena and Šaponjić, Đorđe and Ilić, Svetlana and Šaponjić, Aleksandra",
year = "2020",
abstract = "Macroporous silica ceramic was obtained using clay and diatomite. Boric acid as a low-cost additive in the amount of 1 wt% was used. These porous materials were obtained at low forming pressure (40-80 MPa) and lower sintering temperature (850-1300 ºC) for 4h in air. The influence of boric acid, forming pressure, and sintering temperature on the microstructure, porosity parameters, and mechanical properties of obtained porous monoliths were investigated. As-received and the modified samples were characterized by X-ray diffraction, FTIR, SEM, and mercury porosimetry measurements. As for modified clay and diatomite, they were pressed at 60 MPa and then sintered at 1150 ºC, obtaining porosities of about 10 % and 60 %, respectively. Both of the analyzed samples had the pore diameter in the range of macroporous materials. The pore diameters of clay samples are ranging from 0.1-10 μm, whereas the pore diameter of diatomite samples was slightly lower with values ranging from 0.05-5 μm. Modified diatomite samples have a lower Young modulus in comparison to modified clay samples.",
journal = "Science of Sintering",
title = "Macroporous monoliths based оn natural mineral sources, clay аnd diatomite",
volume = "52",
number = "3",
pages = "339-348",
doi = "10.2298/SOS2003339K"
}

Kokunešoski, M., Stanković, M., Vuković, M., Majstorović, J., Šaponjić, Đ., Ilić, S.,& Šaponjić, A.. (2020). Macroporous monoliths based оn natural mineral sources, clay аnd diatomite. in Science of Sintering, 52(3), 339-348.
https://doi.org/10.2298/SOS2003339K

Kokunešoski M, Stanković M, Vuković M, Majstorović J, Šaponjić Đ, Ilić S, Šaponjić A. Macroporous monoliths based оn natural mineral sources, clay аnd diatomite. in Science of Sintering. 2020;52(3):339-348.
doi:10.2298/SOS2003339K .

Kokunešoski, Maja, Stanković, Miroslav, Vuković, Marina, Majstorović, Jelena, Šaponjić, Đorđe, Ilić, Svetlana, Šaponjić, Aleksandra, "Macroporous monoliths based оn natural mineral sources, clay аnd diatomite" in Science of Sintering, 52, no. 3 (2020):339-348,
https://doi.org/10.2298/SOS2003339K . .

TY  - JOUR
AU  - Šaponjić, Aleksandra
AU  - Šaponjić, Đorđe
AU  - Perović, Ivana M.
AU  - Vuković, Marina
AU  - Nikolić, Vladimir M.
AU  - Marčeta Kaninski, Milica
AU  - Kokunešoski, Maja
PY  - 2019
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8598
AB  - Co-Mo carbides were prepared by impregnation with aqueous solution of metal salts and sucrose into ordered mesoporous SBA-15 silica template using carbothermal hydrogen reduction. Bimetallic Co-Mo carbide obtained by using carbothermal hydrogen reduction of Co-Mo precursors is formed when the Co-Mo molar ratio is 1.0. The obtained samples were characterized by X-ray diffraction, scanning electron microscopy and energy dispersive X-ray analysis. Electrochemical characterization of obtained materials wеre performed by cyclic voltammetry in acid solution.
T2  - Science of Sintering
T1  - Synthesis and characterization of Co-Mo bimetallic carbides
VL  - 51
IS  - 3
SP  - 319
EP  - 326
DO  - 10.2298/SOS1903319S
ER  - 

@article{
author = "Šaponjić, Aleksandra and Šaponjić, Đorđe and Perović, Ivana M. and Vuković, Marina and Nikolić, Vladimir M. and Marčeta Kaninski, Milica and Kokunešoski, Maja",
year = "2019",
abstract = "Co-Mo carbides were prepared by impregnation with aqueous solution of metal salts and sucrose into ordered mesoporous SBA-15 silica template using carbothermal hydrogen reduction. Bimetallic Co-Mo carbide obtained by using carbothermal hydrogen reduction of Co-Mo precursors is formed when the Co-Mo molar ratio is 1.0. The obtained samples were characterized by X-ray diffraction, scanning electron microscopy and energy dispersive X-ray analysis. Electrochemical characterization of obtained materials wеre performed by cyclic voltammetry in acid solution.",
journal = "Science of Sintering",
title = "Synthesis and characterization of Co-Mo bimetallic carbides",
volume = "51",
number = "3",
pages = "319-326",
doi = "10.2298/SOS1903319S"
}

Šaponjić, A., Šaponjić, Đ., Perović, I. M., Vuković, M., Nikolić, V. M., Marčeta Kaninski, M.,& Kokunešoski, M.. (2019). Synthesis and characterization of Co-Mo bimetallic carbides. in Science of Sintering, 51(3), 319-326.
https://doi.org/10.2298/SOS1903319S

Šaponjić A, Šaponjić Đ, Perović IM, Vuković M, Nikolić VM, Marčeta Kaninski M, Kokunešoski M. Synthesis and characterization of Co-Mo bimetallic carbides. in Science of Sintering. 2019;51(3):319-326.
doi:10.2298/SOS1903319S .

Šaponjić, Aleksandra, Šaponjić, Đorđe, Perović, Ivana M., Vuković, Marina, Nikolić, Vladimir M., Marčeta Kaninski, Milica, Kokunešoski, Maja, "Synthesis and characterization of Co-Mo bimetallic carbides" in Science of Sintering, 51, no. 3 (2019):319-326,
https://doi.org/10.2298/SOS1903319S . .

TY  - CONF
AU  - Kokunešoski, Maja
AU  - Janković Mandić, Ljiljana
AU  - Baščarević, Zvezdana
AU  - Šaponjić, Đorđe
AU  - Ilić, Svetlana
AU  - Egelja, Adela
AU  - Šaponjić, Aleksandra
PY  - 2019
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11296
AB  - The  mining  basin  Kolubara  lies  about  50  km  southwest  of  Belgrade  and  stretches  across  the  river Kolubara from Lajkovac to its mouth in the Sava River. During coal exploitation a huge amount of clay is deposited as separate layer. Clay as a raw mineral material has a high economic potential due to their low price and high abundance.  This  material  is  used  for  various  applications  such  as  filters,  heat  insulators,  absorbents,  catalyst supports,  building  materialn  and  advanced  environmental  applications.  Clay  from  Kolubara  mining  basin  is caracterised  by  inductively  coupled  plasma  spectroscopy  (ICP),  X-ray  diffraction  (XRD),  Scanning  electron microscopy  (SEM).  Also,  activity  concentrations  of 40K,  226Ra and  232Th  in  clay  from  Kolubara  mining,  were determined by gamma ray spectrometry with HP Ge detector.
PB  - Univeristy of Belgrade, Faculty of Mining and Geology, Belgrade, Serbia
C3  - 7th International Symposium Mining and Environmental Protection
T1  - Composition and natural radionuclides in clay from Kolubara mining basin, Serbia
SP  - 148
EP  - 151
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11296
ER  - 

@conference{
author = "Kokunešoski, Maja and Janković Mandić, Ljiljana and Baščarević, Zvezdana and Šaponjić, Đorđe and Ilić, Svetlana and Egelja, Adela and Šaponjić, Aleksandra",
year = "2019",
abstract = "The  mining  basin  Kolubara  lies  about  50  km  southwest  of  Belgrade  and  stretches  across  the  river Kolubara from Lajkovac to its mouth in the Sava River. During coal exploitation a huge amount of clay is deposited as separate layer. Clay as a raw mineral material has a high economic potential due to their low price and high abundance.  This  material  is  used  for  various  applications  such  as  filters,  heat  insulators,  absorbents,  catalyst supports,  building  materialn  and  advanced  environmental  applications.  Clay  from  Kolubara  mining  basin  is caracterised  by  inductively  coupled  plasma  spectroscopy  (ICP),  X-ray  diffraction  (XRD),  Scanning  electron microscopy  (SEM).  Also,  activity  concentrations  of 40K,  226Ra and  232Th  in  clay  from  Kolubara  mining,  were determined by gamma ray spectrometry with HP Ge detector.",
publisher = "Univeristy of Belgrade, Faculty of Mining and Geology, Belgrade, Serbia",
journal = "7th International Symposium Mining and Environmental Protection",
title = "Composition and natural radionuclides in clay from Kolubara mining basin, Serbia",
pages = "148-151",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11296"
}

Kokunešoski, M., Janković Mandić, L., Baščarević, Z., Šaponjić, Đ., Ilić, S., Egelja, A.,& Šaponjić, A.. (2019). Composition and natural radionuclides in clay from Kolubara mining basin, Serbia. in 7th International Symposium Mining and Environmental Protection
Univeristy of Belgrade, Faculty of Mining and Geology, Belgrade, Serbia., 148-151.
https://hdl.handle.net/21.15107/rcub_vinar_11296

Kokunešoski M, Janković Mandić L, Baščarević Z, Šaponjić Đ, Ilić S, Egelja A, Šaponjić A. Composition and natural radionuclides in clay from Kolubara mining basin, Serbia. in 7th International Symposium Mining and Environmental Protection. 2019;:148-151.
https://hdl.handle.net/21.15107/rcub_vinar_11296 .

Kokunešoski, Maja, Janković Mandić, Ljiljana, Baščarević, Zvezdana, Šaponjić, Đorđe, Ilić, Svetlana, Egelja, Adela, Šaponjić, Aleksandra, "Composition and natural radionuclides in clay from Kolubara mining basin, Serbia" in 7th International Symposium Mining and Environmental Protection (2019):148-151,
https://hdl.handle.net/21.15107/rcub_vinar_11296 .

TY  - CONF
AU  - Šaponjić, Aleksandra
AU  - Baščarević, Zvezdana
AU  - Ilić, Svetlana
AU  - Šaponjić, Đorđe
AU  - Egelja, Adela
AU  - Janković Mandić, Ljiljana
AU  - Kokunešoski, Maja
PY  - 2019
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11298
AB  - Diatomaceous earth is of sedimentary origin consists mainly of accumulated skeletons formed as a protective covering of the diatoms. Usually, high absorption capacity of diatomaceous earth provides its wide use as heat insulation, filter and absorbent material. Starting raw material diatomaceous earth from surface coal mine Kolubara, Serbia, was characterized using, scanning electron microscopy (SEM), X-ray diffraction (XRD). Chemical composition of diatomaceous earth was determined by wet chemical methods. In addition, the absorbed gamma ray dose rates is estimated based on the measured activity concentrations of natural radionuclides in clay were determined by gamma spectrometry. This research shows that this material is environmentally safe for further use.
PB  - Univeristy of Belgrade, Faculty of Mining and Geology, Belgrade, Serbia
C3  - 7th International Symposium Mining and Environmental Protection
T1  - Characterization and radionuclides contents of diatomaceous earth from Kolubara mining basin, Serbia
SP  - 157
EP  - 159
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11298
ER  - 

@conference{
author = "Šaponjić, Aleksandra and Baščarević, Zvezdana and Ilić, Svetlana and Šaponjić, Đorđe and Egelja, Adela and Janković Mandić, Ljiljana and Kokunešoski, Maja",
year = "2019",
abstract = "Diatomaceous earth is of sedimentary origin consists mainly of accumulated skeletons formed as a protective covering of the diatoms. Usually, high absorption capacity of diatomaceous earth provides its wide use as heat insulation, filter and absorbent material. Starting raw material diatomaceous earth from surface coal mine Kolubara, Serbia, was characterized using, scanning electron microscopy (SEM), X-ray diffraction (XRD). Chemical composition of diatomaceous earth was determined by wet chemical methods. In addition, the absorbed gamma ray dose rates is estimated based on the measured activity concentrations of natural radionuclides in clay were determined by gamma spectrometry. This research shows that this material is environmentally safe for further use.",
publisher = "Univeristy of Belgrade, Faculty of Mining and Geology, Belgrade, Serbia",
journal = "7th International Symposium Mining and Environmental Protection",
title = "Characterization and radionuclides contents of diatomaceous earth from Kolubara mining basin, Serbia",
pages = "157-159",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11298"
}

Šaponjić, A., Baščarević, Z., Ilić, S., Šaponjić, Đ., Egelja, A., Janković Mandić, L.,& Kokunešoski, M.. (2019). Characterization and radionuclides contents of diatomaceous earth from Kolubara mining basin, Serbia. in 7th International Symposium Mining and Environmental Protection
Univeristy of Belgrade, Faculty of Mining and Geology, Belgrade, Serbia., 157-159.
https://hdl.handle.net/21.15107/rcub_vinar_11298

Šaponjić A, Baščarević Z, Ilić S, Šaponjić Đ, Egelja A, Janković Mandić L, Kokunešoski M. Characterization and radionuclides contents of diatomaceous earth from Kolubara mining basin, Serbia. in 7th International Symposium Mining and Environmental Protection. 2019;:157-159.
https://hdl.handle.net/21.15107/rcub_vinar_11298 .

Šaponjić, Aleksandra, Baščarević, Zvezdana, Ilić, Svetlana, Šaponjić, Đorđe, Egelja, Adela, Janković Mandić, Ljiljana, Kokunešoski, Maja, "Characterization and radionuclides contents of diatomaceous earth from Kolubara mining basin, Serbia" in 7th International Symposium Mining and Environmental Protection (2019):157-159,
https://hdl.handle.net/21.15107/rcub_vinar_11298 .

TY  - CONF
AU  - Šaponjić, Aleksandra
AU  - Baščarević, Zvezdana
AU  - Ilić, Svetlana
AU  - Šaponjić, Đorđe
AU  - Egelja, Adela
AU  - Janković Mandić, Ljiljana
AU  - Kokunešoski, Maja
PY  - 2019
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11321
PB  - Belgrade : Serbian Ceramic Society
C3  - Advanced Ceramics and Application : 8th Serbian Ceramic Society Conference : program and the book of abstracts; September 23-25, 2019; Belgrade
T1  - Characterization of diatomsceous earth from Kolubara mining basin, Serbia
SP  - 57
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11321
ER  - 

@conference{
author = "Šaponjić, Aleksandra and Baščarević, Zvezdana and Ilić, Svetlana and Šaponjić, Đorđe and Egelja, Adela and Janković Mandić, Ljiljana and Kokunešoski, Maja",
year = "2019",
publisher = "Belgrade : Serbian Ceramic Society",
journal = "Advanced Ceramics and Application : 8th Serbian Ceramic Society Conference : program and the book of abstracts; September 23-25, 2019; Belgrade",
title = "Characterization of diatomsceous earth from Kolubara mining basin, Serbia",
pages = "57",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11321"
}

Šaponjić, A., Baščarević, Z., Ilić, S., Šaponjić, Đ., Egelja, A., Janković Mandić, L.,& Kokunešoski, M.. (2019). Characterization of diatomsceous earth from Kolubara mining basin, Serbia. in Advanced Ceramics and Application : 8th Serbian Ceramic Society Conference : program and the book of abstracts; September 23-25, 2019; Belgrade
Belgrade : Serbian Ceramic Society., 57.
https://hdl.handle.net/21.15107/rcub_vinar_11321

Šaponjić A, Baščarević Z, Ilić S, Šaponjić Đ, Egelja A, Janković Mandić L, Kokunešoski M. Characterization of diatomsceous earth from Kolubara mining basin, Serbia. in Advanced Ceramics and Application : 8th Serbian Ceramic Society Conference : program and the book of abstracts; September 23-25, 2019; Belgrade. 2019;:57.
https://hdl.handle.net/21.15107/rcub_vinar_11321 .

Šaponjić, Aleksandra, Baščarević, Zvezdana, Ilić, Svetlana, Šaponjić, Đorđe, Egelja, Adela, Janković Mandić, Ljiljana, Kokunešoski, Maja, "Characterization of diatomsceous earth from Kolubara mining basin, Serbia" in Advanced Ceramics and Application : 8th Serbian Ceramic Society Conference : program and the book of abstracts; September 23-25, 2019; Belgrade (2019):57,
https://hdl.handle.net/21.15107/rcub_vinar_11321 .

TY  - CONF
AU  - Kokunešoski, Maja
AU  - Janković Mandić, Ljiljana
AU  - Baščarević, Zvezdana
AU  - Šaponjić, Đorđe
AU  - Ilić, Svetlana
AU  - Egelja, Adela
AU  - Šaponjić, Aleksandra
PY  - 2019
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11322
PB  - Belgrade : Serbian Ceramic Society
C3  - Advanced Ceramics and Application : 8th Serbian Ceramic Society Conference : program and the book of abstracts; September 23-25, 2019; Belgrade
T1  - Characterization of clay from Kolubara mining basin, Serbia
SP  - 57
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11322
ER  - 

@conference{
author = "Kokunešoski, Maja and Janković Mandić, Ljiljana and Baščarević, Zvezdana and Šaponjić, Đorđe and Ilić, Svetlana and Egelja, Adela and Šaponjić, Aleksandra",
year = "2019",
publisher = "Belgrade : Serbian Ceramic Society",
journal = "Advanced Ceramics and Application : 8th Serbian Ceramic Society Conference : program and the book of abstracts; September 23-25, 2019; Belgrade",
title = "Characterization of clay from Kolubara mining basin, Serbia",
pages = "57",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11322"
}

Kokunešoski, M., Janković Mandić, L., Baščarević, Z., Šaponjić, Đ., Ilić, S., Egelja, A.,& Šaponjić, A.. (2019). Characterization of clay from Kolubara mining basin, Serbia. in Advanced Ceramics and Application : 8th Serbian Ceramic Society Conference : program and the book of abstracts; September 23-25, 2019; Belgrade
Belgrade : Serbian Ceramic Society., 57.
https://hdl.handle.net/21.15107/rcub_vinar_11322

Kokunešoski M, Janković Mandić L, Baščarević Z, Šaponjić Đ, Ilić S, Egelja A, Šaponjić A. Characterization of clay from Kolubara mining basin, Serbia. in Advanced Ceramics and Application : 8th Serbian Ceramic Society Conference : program and the book of abstracts; September 23-25, 2019; Belgrade. 2019;:57.
https://hdl.handle.net/21.15107/rcub_vinar_11322 .

Kokunešoski, Maja, Janković Mandić, Ljiljana, Baščarević, Zvezdana, Šaponjić, Đorđe, Ilić, Svetlana, Egelja, Adela, Šaponjić, Aleksandra, "Characterization of clay from Kolubara mining basin, Serbia" in Advanced Ceramics and Application : 8th Serbian Ceramic Society Conference : program and the book of abstracts; September 23-25, 2019; Belgrade (2019):57,
https://hdl.handle.net/21.15107/rcub_vinar_11322 .

TY  - JOUR
AU  - Kokunešoski, Maja
AU  - Kićević, Dušan
AU  - Šaponjić, Đorđe
AU  - Ilić, Svetlana M.
AU  - Egelja, Adela
AU  - Šaponjić, Aleksandra
PY  - 2019
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10939
AB  - Ispitana je mogućnost primene metil metakrilata, MMA, kao akrilnog veziva u pripremi keramičkog praha alumine za presovanje sa namerom da se poboljša mašinska obradljivost ispresaka od alumine. Poređene su osobine ispresaka i osobine njima odgovarajućih sinterovanih uzoraka koji su pripremljeni sa i bez akrilnog veziva. Visoka gustina ispresaka sa MMA (2,35 g/cm3) u odnosu na ispreske samo od alumine (2,11 g/cm3) formiranih pod optimalnim pritiskom presovanja od 60 MPa, ukazuje na uticaj akrilata na poboljšano pakovanje praha alumine i njihovu odličnu mašinsku obradljivost; kod sinterovanih uzoraka povećana je poroznost, a smanjene su gustina i procenat linearnog skupljanja. Pokazano je da se mašinskom obradom ispresaka alumine sa MMA, mogu napraviti složene forme poput keramičkog zavrtnja ili keramički delovi sklopova, sa velikim mogućnostima komercijalne primene.
AB  - Investigated the possibility of using methyl methacrylate (MMA) as an acrylic binder in the preparation of ceramic powder of alumina for pressing with the intention of improving machinability of alumina flakes. Compared the properties of the green bodies and the properties of their corresponding sintered samples that are prepared with and without acrylic binder. The achieved higher density of green bodies with MMA (2.35 g/cm3) compared to green bodies without MMA (2.11 g/cm3) were formed under the optimal pressure of 60 MPa, indicating the improved packing of alumina powder with addition of acrylate. In the case of sintered samples, the porosities were increased, and the density and percentage of linear shrinkage were reduced. It has been shown that machining of green bodies, prepared with MMA, can be produced in the form of complex ceramic products of alumina like a screw with a nut and with great possibilities of commercial application.
T2  - Zaštita materijala
T1  - Uticaj metil metakrilatoma kao akrilnog veziva na mašinsku obradljivost ispresaka alumine
T1  - Influence of methyl methacrylate as an acrylic binder on a green machining of alumina ceramics
VL  - 60
IS  - 2
SP  - 157
EP  - 161
DO  - 10.5937/zasmat1902157K
ER  - 

@article{
author = "Kokunešoski, Maja and Kićević, Dušan and Šaponjić, Đorđe and Ilić, Svetlana M. and Egelja, Adela and Šaponjić, Aleksandra",
year = "2019",
abstract = "Ispitana je mogućnost primene metil metakrilata, MMA, kao akrilnog veziva u pripremi keramičkog praha alumine za presovanje sa namerom da se poboljša mašinska obradljivost ispresaka od alumine. Poređene su osobine ispresaka i osobine njima odgovarajućih sinterovanih uzoraka koji su pripremljeni sa i bez akrilnog veziva. Visoka gustina ispresaka sa MMA (2,35 g/cm3) u odnosu na ispreske samo od alumine (2,11 g/cm3) formiranih pod optimalnim pritiskom presovanja od 60 MPa, ukazuje na uticaj akrilata na poboljšano pakovanje praha alumine i njihovu odličnu mašinsku obradljivost; kod sinterovanih uzoraka povećana je poroznost, a smanjene su gustina i procenat linearnog skupljanja. Pokazano je da se mašinskom obradom ispresaka alumine sa MMA, mogu napraviti složene forme poput keramičkog zavrtnja ili keramički delovi sklopova, sa velikim mogućnostima komercijalne primene., Investigated the possibility of using methyl methacrylate (MMA) as an acrylic binder in the preparation of ceramic powder of alumina for pressing with the intention of improving machinability of alumina flakes. Compared the properties of the green bodies and the properties of their corresponding sintered samples that are prepared with and without acrylic binder. The achieved higher density of green bodies with MMA (2.35 g/cm3) compared to green bodies without MMA (2.11 g/cm3) were formed under the optimal pressure of 60 MPa, indicating the improved packing of alumina powder with addition of acrylate. In the case of sintered samples, the porosities were increased, and the density and percentage of linear shrinkage were reduced. It has been shown that machining of green bodies, prepared with MMA, can be produced in the form of complex ceramic products of alumina like a screw with a nut and with great possibilities of commercial application.",
journal = "Zaštita materijala",
title = "Uticaj metil metakrilatoma kao akrilnog veziva na mašinsku obradljivost ispresaka alumine, Influence of methyl methacrylate as an acrylic binder on a green machining of alumina ceramics",
volume = "60",
number = "2",
pages = "157-161",
doi = "10.5937/zasmat1902157K"
}

Kokunešoski, M., Kićević, D., Šaponjić, Đ., Ilić, S. M., Egelja, A.,& Šaponjić, A.. (2019). Uticaj metil metakrilatoma kao akrilnog veziva na mašinsku obradljivost ispresaka alumine. in Zaštita materijala, 60(2), 157-161.
https://doi.org/10.5937/zasmat1902157K

Kokunešoski M, Kićević D, Šaponjić Đ, Ilić SM, Egelja A, Šaponjić A. Uticaj metil metakrilatoma kao akrilnog veziva na mašinsku obradljivost ispresaka alumine. in Zaštita materijala. 2019;60(2):157-161.
doi:10.5937/zasmat1902157K .

Kokunešoski, Maja, Kićević, Dušan, Šaponjić, Đorđe, Ilić, Svetlana M., Egelja, Adela, Šaponjić, Aleksandra, "Uticaj metil metakrilatoma kao akrilnog veziva na mašinsku obradljivost ispresaka alumine" in Zaštita materijala, 60, no. 2 (2019):157-161,
https://doi.org/10.5937/zasmat1902157K . .

TY  - JOUR
AU  - Kokunešoski, Maja
AU  - Baščarević, Zvezdana D.
AU  - Rakočević, Zlatko Lj.
AU  - Šaponjić, Aleksandra
AU  - Šaponjić, Đorđe
AU  - Jordanov, Dragana
AU  - Babić, Biljana M.
PY  - 2018
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7650
AB  - Mesoporous silica SBA-15 materials of high specific surface area (similar to 700 m(2) g(-1)) were synthesized by using block copolymer Pluronic P123 as template and tetraethoxysilane as silica source. The obtained materials were characterized by XRD, nitrogen adsorption desorption measurements, SEM, EDS and AFM analysis. It was found that small modifications of synthesis conditions influenced the morphological features of the synthesized SBA-15 samples. The SEM analysis had shown that the SBA-15 synthesized at lower temperature and longer time of reaction (80 degrees C, 48 h) provided elongated rod-shaped grains about 1 mu m long. The other sample synthesized at higher temperature and shorter time of reaction (100 degrees C, 24 h) had rounded grains and grains of regular spherical shape with diameters ranging from 0.5 to 2 mu m. The EDS analysis confirmed that the particles of both synthesized samples were of the SiO2 content. In addition, the AFM analysis had shown different surface morphologies of the materials synthesized under various conditions.
T2  - Science of Sintering
T1  - Influence of synthesis conditions on morphological features of the SBA-15 containing only elongated and rounded/spherical grains
VL  - 50
IS  - 1
SP  - 111
EP  - 121
DO  - 10.2298/SOS1801111K
ER  - 

@article{
author = "Kokunešoski, Maja and Baščarević, Zvezdana D. and Rakočević, Zlatko Lj. and Šaponjić, Aleksandra and Šaponjić, Đorđe and Jordanov, Dragana and Babić, Biljana M.",
year = "2018",
abstract = "Mesoporous silica SBA-15 materials of high specific surface area (similar to 700 m(2) g(-1)) were synthesized by using block copolymer Pluronic P123 as template and tetraethoxysilane as silica source. The obtained materials were characterized by XRD, nitrogen adsorption desorption measurements, SEM, EDS and AFM analysis. It was found that small modifications of synthesis conditions influenced the morphological features of the synthesized SBA-15 samples. The SEM analysis had shown that the SBA-15 synthesized at lower temperature and longer time of reaction (80 degrees C, 48 h) provided elongated rod-shaped grains about 1 mu m long. The other sample synthesized at higher temperature and shorter time of reaction (100 degrees C, 24 h) had rounded grains and grains of regular spherical shape with diameters ranging from 0.5 to 2 mu m. The EDS analysis confirmed that the particles of both synthesized samples were of the SiO2 content. In addition, the AFM analysis had shown different surface morphologies of the materials synthesized under various conditions.",
journal = "Science of Sintering",
title = "Influence of synthesis conditions on morphological features of the SBA-15 containing only elongated and rounded/spherical grains",
volume = "50",
number = "1",
pages = "111-121",
doi = "10.2298/SOS1801111K"
}

Kokunešoski, M., Baščarević, Z. D., Rakočević, Z. Lj., Šaponjić, A., Šaponjić, Đ., Jordanov, D.,& Babić, B. M.. (2018). Influence of synthesis conditions on morphological features of the SBA-15 containing only elongated and rounded/spherical grains. in Science of Sintering, 50(1), 111-121.
https://doi.org/10.2298/SOS1801111K

Kokunešoski M, Baščarević ZD, Rakočević ZL, Šaponjić A, Šaponjić Đ, Jordanov D, Babić BM. Influence of synthesis conditions on morphological features of the SBA-15 containing only elongated and rounded/spherical grains. in Science of Sintering. 2018;50(1):111-121.
doi:10.2298/SOS1801111K .

Kokunešoski, Maja, Baščarević, Zvezdana D., Rakočević, Zlatko Lj., Šaponjić, Aleksandra, Šaponjić, Đorđe, Jordanov, Dragana, Babić, Biljana M., "Influence of synthesis conditions on morphological features of the SBA-15 containing only elongated and rounded/spherical grains" in Science of Sintering, 50, no. 1 (2018):111-121,
https://doi.org/10.2298/SOS1801111K . .

TY  - JOUR
AU  - Šaponjić, Aleksandra
AU  - Šaponjić, Đorđe
AU  - Nikolić, Violeta N.
AU  - Milošević, Maja
AU  - Marinović-Cincović, Milena
AU  - Gyoshev, Stanislav
AU  - Vuković, Marina
AU  - Kokunešoski, Maja
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1644
AB  - Amorphous iron (III) oxide was obtained from clay, using ammonium hydroxide as a precipitating agent. Influence of freeze drying under vacuum, as a drying method, on particle size, chemical composition, and crystallinity of obtained iron (III) oxide powder was investigated. After freeze drying, precipitate was annealed in air at 500 C-o and 900 oC. X-ray diffraction, particle size analysis, scanning electron microscopy, energy dispersive spectrometry, Fourier transform infrared spectroscopy, thermogravimetric and differential thermal analysis were used to characterize obtained iron (III) oxide powder. All of three powders obtained by freeze drying and annealing, have low crystallinity and particles with irregular layered shape. Narrow particle size distribution was given by an average diameter value of around 50 mu m for all observed powders. Iron-bearing materials like a-Fe2O3 and gamma-Fe2O3 are obtained. Differential thermal analysis curve of obtained samples showed endothermic reaction at 620 oC which could be ascribed to phase transition from cubic form gamma- - GT alpha- Fe2O3. Thermal transformations of iron (III) oxide, obtained from clay as a natural source, is suitable to explore in the framework of materials chemistry, and opens the possibility to synthesize materials based on Fe2O3 with specific magnetic behavior.
T2  - Science of Sintering
T1  - Iron (III) Oxide Fabrication From Natural Clay With Reference to Phase Transformation gamma- - GT alpha- Fe2O3
VL  - 49
IS  - 2
SP  - 197
EP  - 205
DO  - 10.2298/SOS1702197S
ER  - 

@article{
author = "Šaponjić, Aleksandra and Šaponjić, Đorđe and Nikolić, Violeta N. and Milošević, Maja and Marinović-Cincović, Milena and Gyoshev, Stanislav and Vuković, Marina and Kokunešoski, Maja",
year = "2017",
abstract = "Amorphous iron (III) oxide was obtained from clay, using ammonium hydroxide as a precipitating agent. Influence of freeze drying under vacuum, as a drying method, on particle size, chemical composition, and crystallinity of obtained iron (III) oxide powder was investigated. After freeze drying, precipitate was annealed in air at 500 C-o and 900 oC. X-ray diffraction, particle size analysis, scanning electron microscopy, energy dispersive spectrometry, Fourier transform infrared spectroscopy, thermogravimetric and differential thermal analysis were used to characterize obtained iron (III) oxide powder. All of three powders obtained by freeze drying and annealing, have low crystallinity and particles with irregular layered shape. Narrow particle size distribution was given by an average diameter value of around 50 mu m for all observed powders. Iron-bearing materials like a-Fe2O3 and gamma-Fe2O3 are obtained. Differential thermal analysis curve of obtained samples showed endothermic reaction at 620 oC which could be ascribed to phase transition from cubic form gamma- - GT alpha- Fe2O3. Thermal transformations of iron (III) oxide, obtained from clay as a natural source, is suitable to explore in the framework of materials chemistry, and opens the possibility to synthesize materials based on Fe2O3 with specific magnetic behavior.",
journal = "Science of Sintering",
title = "Iron (III) Oxide Fabrication From Natural Clay With Reference to Phase Transformation gamma- - GT alpha- Fe2O3",
volume = "49",
number = "2",
pages = "197-205",
doi = "10.2298/SOS1702197S"
}

Šaponjić, A., Šaponjić, Đ., Nikolić, V. N., Milošević, M., Marinović-Cincović, M., Gyoshev, S., Vuković, M.,& Kokunešoski, M.. (2017). Iron (III) Oxide Fabrication From Natural Clay With Reference to Phase Transformation gamma- - GT alpha- Fe2O3. in Science of Sintering, 49(2), 197-205.
https://doi.org/10.2298/SOS1702197S

Šaponjić A, Šaponjić Đ, Nikolić VN, Milošević M, Marinović-Cincović M, Gyoshev S, Vuković M, Kokunešoski M. Iron (III) Oxide Fabrication From Natural Clay With Reference to Phase Transformation gamma- - GT alpha- Fe2O3. in Science of Sintering. 2017;49(2):197-205.
doi:10.2298/SOS1702197S .

Šaponjić, Aleksandra, Šaponjić, Đorđe, Nikolić, Violeta N., Milošević, Maja, Marinović-Cincović, Milena, Gyoshev, Stanislav, Vuković, Marina, Kokunešoski, Maja, "Iron (III) Oxide Fabrication From Natural Clay With Reference to Phase Transformation gamma- - GT alpha- Fe2O3" in Science of Sintering, 49, no. 2 (2017):197-205,
https://doi.org/10.2298/SOS1702197S . .

TY  - CONF
AU  - Kokunešoski, Maja
AU  - Šaponjić, Aleksandra
AU  - Baščarević, Zvezdana
AU  - Rakočević, Zlatko
AU  - Šaponjić, Đorđe
AU  - Matović, Branko
AU  - Babić, Biljana
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11256
UR  - http://www.ceramic-society.rs/wp-content/uploads/2018/11/Book-of-Abstracts-2017.pdf
PB  - Institute for Multidisciplinary Research, University of Belgrade
C3  - 4CSCS-2017 : 4th Conference of the Serbian Ceramic Materials : program and the book of abstracts; June 14-16, Belgrade
T1  - Influence of synthesis conditions on morphological features of SBA-15
SP  - 53
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11256
ER  - 

@conference{
author = "Kokunešoski, Maja and Šaponjić, Aleksandra and Baščarević, Zvezdana and Rakočević, Zlatko and Šaponjić, Đorđe and Matović, Branko and Babić, Biljana",
year = "2017",
publisher = "Institute for Multidisciplinary Research, University of Belgrade",
journal = "4CSCS-2017 : 4th Conference of the Serbian Ceramic Materials : program and the book of abstracts; June 14-16, Belgrade",
title = "Influence of synthesis conditions on morphological features of SBA-15",
pages = "53",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11256"
}

Kokunešoski, M., Šaponjić, A., Baščarević, Z., Rakočević, Z., Šaponjić, Đ., Matović, B.,& Babić, B.. (2017). Influence of synthesis conditions on morphological features of SBA-15. in 4CSCS-2017 : 4th Conference of the Serbian Ceramic Materials : program and the book of abstracts; June 14-16, Belgrade
Institute for Multidisciplinary Research, University of Belgrade., 53.
https://hdl.handle.net/21.15107/rcub_vinar_11256

Kokunešoski M, Šaponjić A, Baščarević Z, Rakočević Z, Šaponjić Đ, Matović B, Babić B. Influence of synthesis conditions on morphological features of SBA-15. in 4CSCS-2017 : 4th Conference of the Serbian Ceramic Materials : program and the book of abstracts; June 14-16, Belgrade. 2017;:53.
https://hdl.handle.net/21.15107/rcub_vinar_11256 .

Kokunešoski, Maja, Šaponjić, Aleksandra, Baščarević, Zvezdana, Rakočević, Zlatko, Šaponjić, Đorđe, Matović, Branko, Babić, Biljana, "Influence of synthesis conditions on morphological features of SBA-15" in 4CSCS-2017 : 4th Conference of the Serbian Ceramic Materials : program and the book of abstracts; June 14-16, Belgrade (2017):53,
https://hdl.handle.net/21.15107/rcub_vinar_11256 .

TY  - CONF
AU  - Šaponjić, Aleksandra
AU  - Kokunešoski, Maja
AU  - Perović, Ivana
AU  - Vuković, Marina
AU  - Šaponjić, Đorđe
AU  - Nikolić, Vladimir
AU  - Marčeta Kaninski, Milica
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11301
AB  - Co/Mo carbides were prepared by co-impregnation with aqueous solution of metal salts and sucrose into ordered mesoporous SBA-15 silica template using carbothermal hydrogen reduction. The obtained samples were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and energy dispersive X-ray analysis (EDS) . Electrochemical characterization of obtained materials was performed by cyclic voltammetry in acide solution. Bimetallic CoMo carbide obtained by using carbothermal hydrogen reduction of Co Mo precursors is formed when the Co/Mo molar ratio is 1.0.
PB  - University of Belgrade, Faculty of Mining and Geology, Belgrade, Serbia
C3  - 6th International Symposium Mining and Enviromental Protection Proceedings
T1  - Co/Mo bimetallic carbides with potential applications as catalyst support in pem fuel cells - synthesis and characterization
SP  - 375
EP  - 380
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11301
ER  - 

@conference{
author = "Šaponjić, Aleksandra and Kokunešoski, Maja and Perović, Ivana and Vuković, Marina and Šaponjić, Đorđe and Nikolić, Vladimir and Marčeta Kaninski, Milica",
year = "2017",
abstract = "Co/Mo carbides were prepared by co-impregnation with aqueous solution of metal salts and sucrose into ordered mesoporous SBA-15 silica template using carbothermal hydrogen reduction. The obtained samples were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and energy dispersive X-ray analysis (EDS) . Electrochemical characterization of obtained materials was performed by cyclic voltammetry in acide solution. Bimetallic CoMo carbide obtained by using carbothermal hydrogen reduction of Co Mo precursors is formed when the Co/Mo molar ratio is 1.0.",
publisher = "University of Belgrade, Faculty of Mining and Geology, Belgrade, Serbia",
journal = "6th International Symposium Mining and Enviromental Protection Proceedings",
title = "Co/Mo bimetallic carbides with potential applications as catalyst support in pem fuel cells - synthesis and characterization",
pages = "375-380",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11301"
}

Šaponjić, A., Kokunešoski, M., Perović, I., Vuković, M., Šaponjić, Đ., Nikolić, V.,& Marčeta Kaninski, M.. (2017). Co/Mo bimetallic carbides with potential applications as catalyst support in pem fuel cells - synthesis and characterization. in 6th International Symposium Mining and Enviromental Protection Proceedings
University of Belgrade, Faculty of Mining and Geology, Belgrade, Serbia., 375-380.
https://hdl.handle.net/21.15107/rcub_vinar_11301

Šaponjić A, Kokunešoski M, Perović I, Vuković M, Šaponjić Đ, Nikolić V, Marčeta Kaninski M. Co/Mo bimetallic carbides with potential applications as catalyst support in pem fuel cells - synthesis and characterization. in 6th International Symposium Mining and Enviromental Protection Proceedings. 2017;:375-380.
https://hdl.handle.net/21.15107/rcub_vinar_11301 .

Šaponjić, Aleksandra, Kokunešoski, Maja, Perović, Ivana, Vuković, Marina, Šaponjić, Đorđe, Nikolić, Vladimir, Marčeta Kaninski, Milica, "Co/Mo bimetallic carbides with potential applications as catalyst support in pem fuel cells - synthesis and characterization" in 6th International Symposium Mining and Enviromental Protection Proceedings (2017):375-380,
https://hdl.handle.net/21.15107/rcub_vinar_11301 .

TY  - CONF
AU  - Marčeta Kaninski, Milica
AU  - Brković, Snežana M.
AU  - Perović, Ivana
AU  - Laušević, Petar
AU  - Pašti, Igor A.
AU  - Šaponjić, Đorđe
AU  - Nikolić, Vladimir M.
PY  - 2016
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11570
AB  - Cost and durability are two major factors that delay large-scale production and commercialization of PEMFC's. One of the technologically ready application of the proton exchange membrane fuel cells (PEMFC) is in the combined heat and power systems (µCHP), which are used in the individual households or buildings. The performance of the µCHP systems greatly depends on the purity of the hydrogen stream, which is produced via methane reforming process. To overcome low CO tolerance of the commercially used Pt electrocatalyst and to lower the catalyst content we have prepared non-stoichiometric tungsten oxide as a Pt based catalyst support. We have prepared several catalysts designated as 10% Pt/WO3-C, 20% Pt/WO3-C, 40% Pt/WO3-C. The structure and morphology characteristics of the prepared catalysts were investigated using XRD, TEM and SEM/EDX techniques. Investigations concerning electroactivity of these catalysts towards the hydrogen oxidation reaction (HOR) were performed using cyclic voltammetry, linear sweep voltammetry, forming an ultra thin catalyst layer onto RDE. Mechanism and the kinetics of the prepared catalysts towards HOR were evaluated and if was found that increased mass activity of the 10% Pt/WO3-C could be attributed to the interactive naure of the WO3 catalyst support. Obtained results clearly show increased CO tolerance of Pt/WO3-C catalyst compared to commercial Pt/C, which was confirmed by lowering the stripping potential of the CO, adsorbed on the surface of the 10% Pt/WO3-C. catalyst is more facile than that on commercial 40% Pt/C. These catalysts were employed as anode catalyst in the MEA, and the performance of single cell PEMFC were compared to commercial catalyst.
C3  - PRiME 2016/230th ECS Meeting October 2, 2016 - October 7, 2016 Honolulu, HI
T1  - Novel Non-Stoichiometric Tungsten Oxide Based Catalyst Support for the Increased CO Tolerance in PEMFC
VL  - MA2016-02
IS  - 38
SP  - 2629
EP  - 2629
DO  - 10.1149/MA2016-02/38/2629
ER  - 

@conference{
author = "Marčeta Kaninski, Milica and Brković, Snežana M. and Perović, Ivana and Laušević, Petar and Pašti, Igor A. and Šaponjić, Đorđe and Nikolić, Vladimir M.",
year = "2016",
abstract = "Cost and durability are two major factors that delay large-scale production and commercialization of PEMFC's. One of the technologically ready application of the proton exchange membrane fuel cells (PEMFC) is in the combined heat and power systems (µCHP), which are used in the individual households or buildings. The performance of the µCHP systems greatly depends on the purity of the hydrogen stream, which is produced via methane reforming process. To overcome low CO tolerance of the commercially used Pt electrocatalyst and to lower the catalyst content we have prepared non-stoichiometric tungsten oxide as a Pt based catalyst support. We have prepared several catalysts designated as 10% Pt/WO3-C, 20% Pt/WO3-C, 40% Pt/WO3-C. The structure and morphology characteristics of the prepared catalysts were investigated using XRD, TEM and SEM/EDX techniques. Investigations concerning electroactivity of these catalysts towards the hydrogen oxidation reaction (HOR) were performed using cyclic voltammetry, linear sweep voltammetry, forming an ultra thin catalyst layer onto RDE. Mechanism and the kinetics of the prepared catalysts towards HOR were evaluated and if was found that increased mass activity of the 10% Pt/WO3-C could be attributed to the interactive naure of the WO3 catalyst support. Obtained results clearly show increased CO tolerance of Pt/WO3-C catalyst compared to commercial Pt/C, which was confirmed by lowering the stripping potential of the CO, adsorbed on the surface of the 10% Pt/WO3-C. catalyst is more facile than that on commercial 40% Pt/C. These catalysts were employed as anode catalyst in the MEA, and the performance of single cell PEMFC were compared to commercial catalyst.",
journal = "PRiME 2016/230th ECS Meeting October 2, 2016 - October 7, 2016 Honolulu, HI",
title = "Novel Non-Stoichiometric Tungsten Oxide Based Catalyst Support for the Increased CO Tolerance in PEMFC",
volume = "MA2016-02",
number = "38",
pages = "2629-2629",
doi = "10.1149/MA2016-02/38/2629"
}

Marčeta Kaninski, M., Brković, S. M., Perović, I., Laušević, P., Pašti, I. A., Šaponjić, Đ.,& Nikolić, V. M.. (2016). Novel Non-Stoichiometric Tungsten Oxide Based Catalyst Support for the Increased CO Tolerance in PEMFC. in PRiME 2016/230th ECS Meeting October 2, 2016 - October 7, 2016 Honolulu, HI, MA2016-02(38), 2629-2629.
https://doi.org/10.1149/MA2016-02/38/2629

Marčeta Kaninski M, Brković SM, Perović I, Laušević P, Pašti IA, Šaponjić Đ, Nikolić VM. Novel Non-Stoichiometric Tungsten Oxide Based Catalyst Support for the Increased CO Tolerance in PEMFC. in PRiME 2016/230th ECS Meeting October 2, 2016 - October 7, 2016 Honolulu, HI. 2016;MA2016-02(38):2629-2629.
doi:10.1149/MA2016-02/38/2629 .

Marčeta Kaninski, Milica, Brković, Snežana M., Perović, Ivana, Laušević, Petar, Pašti, Igor A., Šaponjić, Đorđe, Nikolić, Vladimir M., "Novel Non-Stoichiometric Tungsten Oxide Based Catalyst Support for the Increased CO Tolerance in PEMFC" in PRiME 2016/230th ECS Meeting October 2, 2016 - October 7, 2016 Honolulu, HI, MA2016-02, no. 38 (2016):2629-2629,
https://doi.org/10.1149/MA2016-02/38/2629 . .

TY  - JOUR
AU  - Marčeta Kaninski, Milica
AU  - Seović, Mina M.
AU  - Miulović, Snežana M.
AU  - Žugić, Dragana
AU  - Tasić, Gvozden S.
AU  - Šaponjić, Đorđe
PY  - 2013
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/5307
AB  - Catalyst based on cobalt and chrome was investigated as cathode material for hydrogen production process via water electrolysis. Electrocatalytic efficiency of proposed system was studied using quasi-potentiostatic, galvanostatic and impedance spectroscopy techniques of the catalyst obtained by in situ electrodeposition in an alkaline, 6 M KOH, electrolyser. In accordance to our previous studies, synergetic effect of cobalt complex and chrome salt is observed, with its maximum at high temperatures and for high current densities (industrial conditions). The Tafel slopes were found to be around 120 mV and exchange current densities in the range of 10(-3) mA cm(-2) up to 10(-2) mA cm(-2). Results are presented to show the Tafel slopes, the exchange current densities, the apparent energy of activation and the apparent electrochemical surface of in situ formed Co-Cr catalyst. This study shows that catalytic performance of Co-Cr was achieved not only from the increase of the real surface area of electrodes, but also from the true catalytic effect. Copyright (C) 2012, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
T2  - International Journal of Hydrogen Energy
T1  - Cobalt-chrome activation of the nickel electrodes for the HER in alkaline water electrolysis - Part II
VL  - 38
IS  - 4
SP  - 1758
EP  - 1764
DO  - 10.1016/j.ijhydene.2012.11.117
ER  - 

@article{
author = "Marčeta Kaninski, Milica and Seović, Mina M. and Miulović, Snežana M. and Žugić, Dragana and Tasić, Gvozden S. and Šaponjić, Đorđe",
year = "2013",
abstract = "Catalyst based on cobalt and chrome was investigated as cathode material for hydrogen production process via water electrolysis. Electrocatalytic efficiency of proposed system was studied using quasi-potentiostatic, galvanostatic and impedance spectroscopy techniques of the catalyst obtained by in situ electrodeposition in an alkaline, 6 M KOH, electrolyser. In accordance to our previous studies, synergetic effect of cobalt complex and chrome salt is observed, with its maximum at high temperatures and for high current densities (industrial conditions). The Tafel slopes were found to be around 120 mV and exchange current densities in the range of 10(-3) mA cm(-2) up to 10(-2) mA cm(-2). Results are presented to show the Tafel slopes, the exchange current densities, the apparent energy of activation and the apparent electrochemical surface of in situ formed Co-Cr catalyst. This study shows that catalytic performance of Co-Cr was achieved not only from the increase of the real surface area of electrodes, but also from the true catalytic effect. Copyright (C) 2012, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.",
journal = "International Journal of Hydrogen Energy",
title = "Cobalt-chrome activation of the nickel electrodes for the HER in alkaline water electrolysis - Part II",
volume = "38",
number = "4",
pages = "1758-1764",
doi = "10.1016/j.ijhydene.2012.11.117"
}

Marčeta Kaninski, M., Seović, M. M., Miulović, S. M., Žugić, D., Tasić, G. S.,& Šaponjić, Đ.. (2013). Cobalt-chrome activation of the nickel electrodes for the HER in alkaline water electrolysis - Part II. in International Journal of Hydrogen Energy, 38(4), 1758-1764.
https://doi.org/10.1016/j.ijhydene.2012.11.117

Marčeta Kaninski M, Seović MM, Miulović SM, Žugić D, Tasić GS, Šaponjić Đ. Cobalt-chrome activation of the nickel electrodes for the HER in alkaline water electrolysis - Part II. in International Journal of Hydrogen Energy. 2013;38(4):1758-1764.
doi:10.1016/j.ijhydene.2012.11.117 .

Marčeta Kaninski, Milica, Seović, Mina M., Miulović, Snežana M., Žugić, Dragana, Tasić, Gvozden S., Šaponjić, Đorđe, "Cobalt-chrome activation of the nickel electrodes for the HER in alkaline water electrolysis - Part II" in International Journal of Hydrogen Energy, 38, no. 4 (2013):1758-1764,
https://doi.org/10.1016/j.ijhydene.2012.11.117 . .

TY  - JOUR
AU  - Marčeta Kaninski, Milica
AU  - Šaponjić, Đorđe
AU  - Nikolić, Vladimir M.
AU  - Žugić, Dragana
AU  - Tasić, Gvozden S.
PY  - 2011
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/4420
AB  - Hydrogen production via electrolysis of water from alkaline aqueous electrolytes is a well-established conventional technology. However, the cost of hydrogen produced in such a way is high. To improve this process we have investigated in situ activation with Ni-Mo electrocatalytic material for electrodes. This two d-metal combination possesses one of the highest known activities for the HER. Ni-Mo based catalyst was not applied at industrial applications yet, because under industrial conditions (high temperature and concentrated alkaline solution), permanent destruction of the Ni-Mo alloy coating occurs. The most important result of this study is that the Ni-Mo deposit obtained by in situ activation, under industrial conditions, exhibit long term stability and the electrodes retain their high catalytic performance. The process of adding Ni-Mo activating compounds in situ exhibits savings of the energy consumption that can go beyond 20% in some cases. Copyright (C) 2011, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
T2  - International Journal of Hydrogen Energy
T1  - Energy consumption and stability of the Ni-Mo electrodes for the alkaline hydrogen production at industrial conditions
VL  - 36
IS  - 15
SP  - 8864
EP  - 8868
DO  - 10.1016/j.ijhydene.2011.04.144
ER  - 

@article{
author = "Marčeta Kaninski, Milica and Šaponjić, Đorđe and Nikolić, Vladimir M. and Žugić, Dragana and Tasić, Gvozden S.",
year = "2011",
abstract = "Hydrogen production via electrolysis of water from alkaline aqueous electrolytes is a well-established conventional technology. However, the cost of hydrogen produced in such a way is high. To improve this process we have investigated in situ activation with Ni-Mo electrocatalytic material for electrodes. This two d-metal combination possesses one of the highest known activities for the HER. Ni-Mo based catalyst was not applied at industrial applications yet, because under industrial conditions (high temperature and concentrated alkaline solution), permanent destruction of the Ni-Mo alloy coating occurs. The most important result of this study is that the Ni-Mo deposit obtained by in situ activation, under industrial conditions, exhibit long term stability and the electrodes retain their high catalytic performance. The process of adding Ni-Mo activating compounds in situ exhibits savings of the energy consumption that can go beyond 20% in some cases. Copyright (C) 2011, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.",
journal = "International Journal of Hydrogen Energy",
title = "Energy consumption and stability of the Ni-Mo electrodes for the alkaline hydrogen production at industrial conditions",
volume = "36",
number = "15",
pages = "8864-8868",
doi = "10.1016/j.ijhydene.2011.04.144"
}

Marčeta Kaninski, M., Šaponjić, Đ., Nikolić, V. M., Žugić, D.,& Tasić, G. S.. (2011). Energy consumption and stability of the Ni-Mo electrodes for the alkaline hydrogen production at industrial conditions. in International Journal of Hydrogen Energy, 36(15), 8864-8868.
https://doi.org/10.1016/j.ijhydene.2011.04.144

Marčeta Kaninski M, Šaponjić Đ, Nikolić VM, Žugić D, Tasić GS. Energy consumption and stability of the Ni-Mo electrodes for the alkaline hydrogen production at industrial conditions. in International Journal of Hydrogen Energy. 2011;36(15):8864-8868.
doi:10.1016/j.ijhydene.2011.04.144 .

Marčeta Kaninski, Milica, Šaponjić, Đorđe, Nikolić, Vladimir M., Žugić, Dragana, Tasić, Gvozden S., "Energy consumption and stability of the Ni-Mo electrodes for the alkaline hydrogen production at industrial conditions" in International Journal of Hydrogen Energy, 36, no. 15 (2011):8864-8868,
https://doi.org/10.1016/j.ijhydene.2011.04.144 . .

TY  - JOUR
AU  - Nikolić, Vladimir M.
AU  - Žugić, Dragana
AU  - Maksić, Aleksandar
AU  - Šaponjić, Đorđe
AU  - Marčeta Kaninski, Milica
PY  - 2011
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/4498
AB  - There are several problems which are holding back the use of fuel cells. The utilization of fuel cells depends on the start-up costs which are very high due to the use of expensive materials for their construction. In that respect, we describe a cost-effective alkaline fuel cell (AFC) that uses solid, polymer based, membrane instead of conventionaly used, highly concentrated, corrosive, liquid alkaline electrolyte. This approach to AFC is potentially the basis of a simple, low-cost system, that can solve one of the problems of the highly-efficient and environment-friendly AFC. The focus of this paper are low cost composite alkaline membranes, based on poly(vinyl alcohol) (PVA). The PVA matrix is made by solution cast method and gamma irradiation crosslinking. Three different types of membranes are obtained in this manner plain PVA membrane, PVA membrane cross-linked using gamma irradiation (gamma-PVA) and composite PVA membrane doped with Mo (PVA-Mo). These membranes are immersed in the alkaline solution and investigated as anion exchange membranes. The performance of the solid alkaline fuel cells (SAFCs) containing these PVA membranes has been studied under hydrogen and oxygen gas flow on the Pt/C catalyst. Both, gamma-PVA and PVA-Mo membranes are modified to absorb larger amounts of alkaline solution than the PVA membrane, thus greatly improving the performance of the SAFC, in terms of output power. This is clearly indicated in the polarisation curves. The electrochemical impedance spectroscopy measurements during the SAFC operation were also performed to give better insight in the effect observed. Investigation presented in this paper clearly indicates that solid alkaline PVA membranes can be used for the construction of the SAFCs. Copyright (C) 2011, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
T2  - International Journal of Hydrogen Energy
T1  - Performance comparison of modified poly(vinyl alcohol) based membranes in alkaline fuel cells
VL  - 36
IS  - 17
SP  - 11004
EP  - 11010
DO  - 10.1016/j.ijhydene.2011.05.164
ER  - 

@article{
author = "Nikolić, Vladimir M. and Žugić, Dragana and Maksić, Aleksandar and Šaponjić, Đorđe and Marčeta Kaninski, Milica",
year = "2011",
abstract = "There are several problems which are holding back the use of fuel cells. The utilization of fuel cells depends on the start-up costs which are very high due to the use of expensive materials for their construction. In that respect, we describe a cost-effective alkaline fuel cell (AFC) that uses solid, polymer based, membrane instead of conventionaly used, highly concentrated, corrosive, liquid alkaline electrolyte. This approach to AFC is potentially the basis of a simple, low-cost system, that can solve one of the problems of the highly-efficient and environment-friendly AFC. The focus of this paper are low cost composite alkaline membranes, based on poly(vinyl alcohol) (PVA). The PVA matrix is made by solution cast method and gamma irradiation crosslinking. Three different types of membranes are obtained in this manner plain PVA membrane, PVA membrane cross-linked using gamma irradiation (gamma-PVA) and composite PVA membrane doped with Mo (PVA-Mo). These membranes are immersed in the alkaline solution and investigated as anion exchange membranes. The performance of the solid alkaline fuel cells (SAFCs) containing these PVA membranes has been studied under hydrogen and oxygen gas flow on the Pt/C catalyst. Both, gamma-PVA and PVA-Mo membranes are modified to absorb larger amounts of alkaline solution than the PVA membrane, thus greatly improving the performance of the SAFC, in terms of output power. This is clearly indicated in the polarisation curves. The electrochemical impedance spectroscopy measurements during the SAFC operation were also performed to give better insight in the effect observed. Investigation presented in this paper clearly indicates that solid alkaline PVA membranes can be used for the construction of the SAFCs. Copyright (C) 2011, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.",
journal = "International Journal of Hydrogen Energy",
title = "Performance comparison of modified poly(vinyl alcohol) based membranes in alkaline fuel cells",
volume = "36",
number = "17",
pages = "11004-11010",
doi = "10.1016/j.ijhydene.2011.05.164"
}

Nikolić, V. M., Žugić, D., Maksić, A., Šaponjić, Đ.,& Marčeta Kaninski, M.. (2011). Performance comparison of modified poly(vinyl alcohol) based membranes in alkaline fuel cells. in International Journal of Hydrogen Energy, 36(17), 11004-11010.
https://doi.org/10.1016/j.ijhydene.2011.05.164

Nikolić VM, Žugić D, Maksić A, Šaponjić Đ, Marčeta Kaninski M. Performance comparison of modified poly(vinyl alcohol) based membranes in alkaline fuel cells. in International Journal of Hydrogen Energy. 2011;36(17):11004-11010.
doi:10.1016/j.ijhydene.2011.05.164 .

Nikolić, Vladimir M., Žugić, Dragana, Maksić, Aleksandar, Šaponjić, Đorđe, Marčeta Kaninski, Milica, "Performance comparison of modified poly(vinyl alcohol) based membranes in alkaline fuel cells" in International Journal of Hydrogen Energy, 36, no. 17 (2011):11004-11010,
https://doi.org/10.1016/j.ijhydene.2011.05.164 . .

TY  - JOUR
AU  - Marčeta Kaninski, Milica
AU  - Šaponjić, Đorđe
AU  - Perović, Ivana M.
AU  - Maksić, Aleksandar
AU  - Nikolić, Vladimir M.
PY  - 2011
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/4523
AB  - Objective of this work was to investigate the electrocatalytic efficiency using quasi-potentiostatic, galvanostatic and impedance spectroscopy techniques of the Ni-W catalysts obtained by in situ electrodeposition in an alkaline, GM KOH, electrolyser. Synergetic effect is observed, with its maximum at industrial conditions (high temperature and current density). The Tafel slopes are similar to 120 mV and exchange current densities are in the range of 10(-4) mA cm(-2). Results are presented to show the Tafel slopes, the exchange current densities, the apparent energy of activation and the apparent electrochemical surface of the in situ formed Ni-W catalyst. Obtained results could have significant impact on the industrial process for the alkaline hydrogen production and suggest to good catalytic performance not only from the increase of the real surface area of the electrodes, but also from the true catalytic effect. (C) 2011 Elsevier B.V. All rights reserved.
T2  - Applied Catalysis. A: General
T1  - Electrochemical characterization of the Ni-W catalyst formed in situ during alkaline electrolytic hydrogen production-Part II
VL  - 405
IS  - 1-2
SP  - 29
EP  - 35
DO  - 10.1016/j.apcata.2011.07.015
ER  - 

@article{
author = "Marčeta Kaninski, Milica and Šaponjić, Đorđe and Perović, Ivana M. and Maksić, Aleksandar and Nikolić, Vladimir M.",
year = "2011",
abstract = "Objective of this work was to investigate the electrocatalytic efficiency using quasi-potentiostatic, galvanostatic and impedance spectroscopy techniques of the Ni-W catalysts obtained by in situ electrodeposition in an alkaline, GM KOH, electrolyser. Synergetic effect is observed, with its maximum at industrial conditions (high temperature and current density). The Tafel slopes are similar to 120 mV and exchange current densities are in the range of 10(-4) mA cm(-2). Results are presented to show the Tafel slopes, the exchange current densities, the apparent energy of activation and the apparent electrochemical surface of the in situ formed Ni-W catalyst. Obtained results could have significant impact on the industrial process for the alkaline hydrogen production and suggest to good catalytic performance not only from the increase of the real surface area of the electrodes, but also from the true catalytic effect. (C) 2011 Elsevier B.V. All rights reserved.",
journal = "Applied Catalysis. A: General",
title = "Electrochemical characterization of the Ni-W catalyst formed in situ during alkaline electrolytic hydrogen production-Part II",
volume = "405",
number = "1-2",
pages = "29-35",
doi = "10.1016/j.apcata.2011.07.015"
}

Marčeta Kaninski, M., Šaponjić, Đ., Perović, I. M., Maksić, A.,& Nikolić, V. M.. (2011). Electrochemical characterization of the Ni-W catalyst formed in situ during alkaline electrolytic hydrogen production-Part II. in Applied Catalysis. A: General, 405(1-2), 29-35.
https://doi.org/10.1016/j.apcata.2011.07.015

Marčeta Kaninski M, Šaponjić Đ, Perović IM, Maksić A, Nikolić VM. Electrochemical characterization of the Ni-W catalyst formed in situ during alkaline electrolytic hydrogen production-Part II. in Applied Catalysis. A: General. 2011;405(1-2):29-35.
doi:10.1016/j.apcata.2011.07.015 .

Marčeta Kaninski, Milica, Šaponjić, Đorđe, Perović, Ivana M., Maksić, Aleksandar, Nikolić, Vladimir M., "Electrochemical characterization of the Ni-W catalyst formed in situ during alkaline electrolytic hydrogen production-Part II" in Applied Catalysis. A: General, 405, no. 1-2 (2011):29-35,
https://doi.org/10.1016/j.apcata.2011.07.015 . .

TY  - JOUR
AU  - Nikolić, Vladimir M.
AU  - Tasić, Gvozden S.
AU  - Maksić, Aleksandar
AU  - Šaponjić, Đorđe
AU  - Miulović, Snežana M.
AU  - Marčeta Kaninski, Milica
PY  - 2010
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/4148
AB  - This paper presents an attempt to make the alkaline electrolytic production of hydrogen more efficient by adding in situ activating compounds in ionic and complex form Cobalt and tungsten based ionic activators (i a) added directly into the electrolyte during the electrolytic process reduce energy requirements per mass unit of hydrogen produced for about 15% compared to non activated system for a number of current densities in a wide temperature range Energy saving is higher at higher temperatures and on higher current densities Structural and morphological characteristic of deposit formed on the cathode during the electrolytic process reveal very interesting and unique pattern with highly developed surface area and uniform distribution of the pores Obtained deposit also exhibit a long term stability (C) 2010 Professor T Nejat Veziroglu Published by Elsevier Ltd All rights reserved
T2  - International Journal of Hydrogen Energy
T1  - Raising efficiency of hydrogen generation from alkaline water electrolysis - Energy saving
VL  - 35
IS  - 22
SP  - 12369
EP  - 12373
DO  - 10.1016/j.ijhydene.2010.08.069
ER  - 

@article{
author = "Nikolić, Vladimir M. and Tasić, Gvozden S. and Maksić, Aleksandar and Šaponjić, Đorđe and Miulović, Snežana M. and Marčeta Kaninski, Milica",
year = "2010",
abstract = "This paper presents an attempt to make the alkaline electrolytic production of hydrogen more efficient by adding in situ activating compounds in ionic and complex form Cobalt and tungsten based ionic activators (i a) added directly into the electrolyte during the electrolytic process reduce energy requirements per mass unit of hydrogen produced for about 15% compared to non activated system for a number of current densities in a wide temperature range Energy saving is higher at higher temperatures and on higher current densities Structural and morphological characteristic of deposit formed on the cathode during the electrolytic process reveal very interesting and unique pattern with highly developed surface area and uniform distribution of the pores Obtained deposit also exhibit a long term stability (C) 2010 Professor T Nejat Veziroglu Published by Elsevier Ltd All rights reserved",
journal = "International Journal of Hydrogen Energy",
title = "Raising efficiency of hydrogen generation from alkaline water electrolysis - Energy saving",
volume = "35",
number = "22",
pages = "12369-12373",
doi = "10.1016/j.ijhydene.2010.08.069"
}

Nikolić, V. M., Tasić, G. S., Maksić, A., Šaponjić, Đ., Miulović, S. M.,& Marčeta Kaninski, M.. (2010). Raising efficiency of hydrogen generation from alkaline water electrolysis - Energy saving. in International Journal of Hydrogen Energy, 35(22), 12369-12373.
https://doi.org/10.1016/j.ijhydene.2010.08.069

Nikolić VM, Tasić GS, Maksić A, Šaponjić Đ, Miulović SM, Marčeta Kaninski M. Raising efficiency of hydrogen generation from alkaline water electrolysis - Energy saving. in International Journal of Hydrogen Energy. 2010;35(22):12369-12373.
doi:10.1016/j.ijhydene.2010.08.069 .

Nikolić, Vladimir M., Tasić, Gvozden S., Maksić, Aleksandar, Šaponjić, Đorđe, Miulović, Snežana M., Marčeta Kaninski, Milica, "Raising efficiency of hydrogen generation from alkaline water electrolysis - Energy saving" in International Journal of Hydrogen Energy, 35, no. 22 (2010):12369-12373,
https://doi.org/10.1016/j.ijhydene.2010.08.069 . .

TY  - JOUR
AU  - Tasić, Gvozden S.
AU  - Miljanić, Šćepan S.
AU  - Marčeta Kaninski, Milica
AU  - Šaponjić, Đorđe
AU  - Nikolić, Vladimir M.
PY  - 2009
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/3832
AB  - We have investigated the possibility of developing high-performance, cost-effective and durable non-noble Co metal electrocatalyst for PEMFC. In this work we applied electrodeposition process for PEMFC electrode preparation that is very efficient and far simpler than any other investigated method. The fuel cell with electrodeposited Co as anode catalyst has shown satisfying performance level. In determining FCs operating conditions, subsequent electrochemical impedance and output power measurements were done, which enable the insight into the Co catalyst based anode behavior. Structure analysis of the electrodeposited anode layer was done by means of SEM and EDS technique. Although the Pt catalyst has higher efficiency, its cost performance ratio is significantly lower than for the Co catalyst, thus this investigation gives interesting possibilities in area of stationary fuel cell application. (C) 2009 Elsevier B.V. All rights reserved.
T2  - Electrochemistry Communications
T1  - Non-noble metal catalyst for a future Pt free PEMFC
VL  - 11
IS  - 11
SP  - 2097
EP  - 2100
DO  - 10.1016/j.elecom.2009.09.003
ER  - 

@article{
author = "Tasić, Gvozden S. and Miljanić, Šćepan S. and Marčeta Kaninski, Milica and Šaponjić, Đorđe and Nikolić, Vladimir M.",
year = "2009",
abstract = "We have investigated the possibility of developing high-performance, cost-effective and durable non-noble Co metal electrocatalyst for PEMFC. In this work we applied electrodeposition process for PEMFC electrode preparation that is very efficient and far simpler than any other investigated method. The fuel cell with electrodeposited Co as anode catalyst has shown satisfying performance level. In determining FCs operating conditions, subsequent electrochemical impedance and output power measurements were done, which enable the insight into the Co catalyst based anode behavior. Structure analysis of the electrodeposited anode layer was done by means of SEM and EDS technique. Although the Pt catalyst has higher efficiency, its cost performance ratio is significantly lower than for the Co catalyst, thus this investigation gives interesting possibilities in area of stationary fuel cell application. (C) 2009 Elsevier B.V. All rights reserved.",
journal = "Electrochemistry Communications",
title = "Non-noble metal catalyst for a future Pt free PEMFC",
volume = "11",
number = "11",
pages = "2097-2100",
doi = "10.1016/j.elecom.2009.09.003"
}

Tasić, G. S., Miljanić, Š. S., Marčeta Kaninski, M., Šaponjić, Đ.,& Nikolić, V. M.. (2009). Non-noble metal catalyst for a future Pt free PEMFC. in Electrochemistry Communications, 11(11), 2097-2100.
https://doi.org/10.1016/j.elecom.2009.09.003

Tasić GS, Miljanić ŠS, Marčeta Kaninski M, Šaponjić Đ, Nikolić VM. Non-noble metal catalyst for a future Pt free PEMFC. in Electrochemistry Communications. 2009;11(11):2097-2100.
doi:10.1016/j.elecom.2009.09.003 .

Tasić, Gvozden S., Miljanić, Šćepan S., Marčeta Kaninski, Milica, Šaponjić, Đorđe, Nikolić, Vladimir M., "Non-noble metal catalyst for a future Pt free PEMFC" in Electrochemistry Communications, 11, no. 11 (2009):2097-2100,
https://doi.org/10.1016/j.elecom.2009.09.003 . .

TY  - JOUR
AU  - Šaponjić, Đorđe
AU  - Aranđelović, Vojislav
PY  - 2009
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/3250
AB  - By applying the well known dualism: mean count rate - mean time between successive pulses - the equivalence between an IIR digital filter and a preset count digital rate meter has been demonstrated. By using a bank of four second order IIR filters and an optimized automated algorithm for filter selection, a practical realization of a preset count rate meter giving good tradeoff between statistical fluctuations and speed of response, particularly at low count rates such as background monitoring, is presented. The presented solution is suitable for designing portable count rate meters. The designed prototype is capable of operating up to 3600 pulses per second with an accuracy of over 4% in steady-state and responce times of 1 second for the rising edge and 2 seconds for the falling edge of the mean count rate step-change.
T2  - Nuclear technology and radiation protection
T1  - Realization of a Digital Rate Meter as An Iir Digital Filter By Implementing An Optimized Signal Processing Algorithm
VL  - 24
IS  - 2
SP  - 126
EP  - 131
DO  - 10.2298/NTRP0902126S
ER  - 

@article{
author = "Šaponjić, Đorđe and Aranđelović, Vojislav",
year = "2009",
abstract = "By applying the well known dualism: mean count rate - mean time between successive pulses - the equivalence between an IIR digital filter and a preset count digital rate meter has been demonstrated. By using a bank of four second order IIR filters and an optimized automated algorithm for filter selection, a practical realization of a preset count rate meter giving good tradeoff between statistical fluctuations and speed of response, particularly at low count rates such as background monitoring, is presented. The presented solution is suitable for designing portable count rate meters. The designed prototype is capable of operating up to 3600 pulses per second with an accuracy of over 4% in steady-state and responce times of 1 second for the rising edge and 2 seconds for the falling edge of the mean count rate step-change.",
journal = "Nuclear technology and radiation protection",
title = "Realization of a Digital Rate Meter as An Iir Digital Filter By Implementing An Optimized Signal Processing Algorithm",
volume = "24",
number = "2",
pages = "126-131",
doi = "10.2298/NTRP0902126S"
}

Šaponjić, Đ.,& Aranđelović, V.. (2009). Realization of a Digital Rate Meter as An Iir Digital Filter By Implementing An Optimized Signal Processing Algorithm. in Nuclear technology and radiation protection, 24(2), 126-131.
https://doi.org/10.2298/NTRP0902126S

Šaponjić Đ, Aranđelović V. Realization of a Digital Rate Meter as An Iir Digital Filter By Implementing An Optimized Signal Processing Algorithm. in Nuclear technology and radiation protection. 2009;24(2):126-131.
doi:10.2298/NTRP0902126S .

Šaponjić, Đorđe, Aranđelović, Vojislav, "Realization of a Digital Rate Meter as An Iir Digital Filter By Implementing An Optimized Signal Processing Algorithm" in Nuclear technology and radiation protection, 24, no. 2 (2009):126-131,
https://doi.org/10.2298/NTRP0902126S . .

TY  - THES
AU  - Šaponjić, Đorđe
PY  - 2006
UR  - https://plus.cobiss.net/cobiss/sr/sr/bib/34198031
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7607
AB  - New algorithm for measurement of mean count rate of pulses from radiation detectors is described. The algorithm is based on the control of a bank of digital IIR filters governed by the state of mean count rate - stationary or transient. The algorithm solves successfully the compromise between the contradictory requirements for low statistical fluctuations in steady state and fast response to sudden changes of mean count rate. The design of the bank of IIR filters is carried out by using the Chebyshev approximation of the second kind in order to achieve the high selectivity and high stop-band attenuation applying as low as possible order of the constituent filters. All designed filters are of the second order.
The static and dynamic characteristics of the new algorithm and the corresponding computational efficiency are tested and compared with those of the traditional rate-meter algorithms. The responses of the algorithm to linearly growing mean count rate and its sensitivity to variations of mean count rate have also been examined. The state of mean count rate, stationary or transient, is determined by a circuit for estimation of the gradient of mean count rate.
The numbers of threshold levels within the adaptation logic circuit and their mutual positions have been optimized to achieve the best compromise.
Stability of the algorithm is tested numerically by computer simulations and verified experimentally.
A mean count rate meter based on the described algorithm has been designed and successfully realized.
PB  - Univerzitet u Beogradu, Elektrotehnički fakultet
T1  - Digitalno upravljanje bankom rekurzivnih filtara u optimizaciji obrade signala sa impulsnih detektora zračenja u nuklearnoj instrumentaciji
T1  - Digital Control of a Bank of Recursive Filters in Optimal Processing of Signals from Pulse Radiation Detectors in Nuclear Instrumentation
T1  - Цифровое управление банкой рекурзивных филътеров в оптималъной обработки сигналов от импулъсных радиационных детекторов в ядерной инструментации
UR  - https://hdl.handle.net/21.15107/rcub_vinar_7607
ER  - 

@phdthesis{
author = "Šaponjić, Đorđe",
year = "2006",
abstract = "New algorithm for measurement of mean count rate of pulses from radiation detectors is described. The algorithm is based on the control of a bank of digital IIR filters governed by the state of mean count rate - stationary or transient. The algorithm solves successfully the compromise between the contradictory requirements for low statistical fluctuations in steady state and fast response to sudden changes of mean count rate. The design of the bank of IIR filters is carried out by using the Chebyshev approximation of the second kind in order to achieve the high selectivity and high stop-band attenuation applying as low as possible order of the constituent filters. All designed filters are of the second order.
The static and dynamic characteristics of the new algorithm and the corresponding computational efficiency are tested and compared with those of the traditional rate-meter algorithms. The responses of the algorithm to linearly growing mean count rate and its sensitivity to variations of mean count rate have also been examined. The state of mean count rate, stationary or transient, is determined by a circuit for estimation of the gradient of mean count rate.
The numbers of threshold levels within the adaptation logic circuit and their mutual positions have been optimized to achieve the best compromise.
Stability of the algorithm is tested numerically by computer simulations and verified experimentally.
A mean count rate meter based on the described algorithm has been designed and successfully realized.",
publisher = "Univerzitet u Beogradu, Elektrotehnički fakultet",
title = "Digitalno upravljanje bankom rekurzivnih filtara u optimizaciji obrade signala sa impulsnih detektora zračenja u nuklearnoj instrumentaciji, Digital Control of a Bank of Recursive Filters in Optimal Processing of Signals from Pulse Radiation Detectors in Nuclear Instrumentation, Цифровое управление банкой рекурзивных филътеров в оптималъной обработки сигналов от импулъсных радиационных детекторов в ядерной инструментации",
url = "https://hdl.handle.net/21.15107/rcub_vinar_7607"
}

Šaponjić, Đ.. (2006). Digitalno upravljanje bankom rekurzivnih filtara u optimizaciji obrade signala sa impulsnih detektora zračenja u nuklearnoj instrumentaciji. 
Univerzitet u Beogradu, Elektrotehnički fakultet..
https://hdl.handle.net/21.15107/rcub_vinar_7607

Šaponjić Đ. Digitalno upravljanje bankom rekurzivnih filtara u optimizaciji obrade signala sa impulsnih detektora zračenja u nuklearnoj instrumentaciji. 2006;.
https://hdl.handle.net/21.15107/rcub_vinar_7607 .

Šaponjić, Đorđe, "Digitalno upravljanje bankom rekurzivnih filtara u optimizaciji obrade signala sa impulsnih detektora zračenja u nuklearnoj instrumentaciji" (2006),
https://hdl.handle.net/21.15107/rcub_vinar_7607 .

TY  - JOUR
AU  - Šaponjić, Đorđe
AU  - Aranđelović, Vojislav
AU  - Stojić, Milic
PY  - 2006
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/3134
AB  - New algorithm for measurement of mean count rate of pulses from radiation detectors is described. The algorithm is based on the control of a bank of digital IIR filters governed by the state of mean count rate-stationary or transient. The algorithm solves successfully the compromise between the contradictory requirements for low statistical fluctuations in steady state and fast response to sudden changes of mean count rate. The design of the bank of IIR filters is carried out by using the Chebyshev approximation of the second kind in order to achieve the high selectivity and high stopband attenuation applying as low as possible order of the constituent filters. All designed filters are of the second order. The static and dynamic characteristics of the new algorithm and the corresponding computational efficiency are tested and compared with those of the traditional ratemeter algorithms. The state of mean count rate, stationary or transient, is determined by a circuit for estimation of the gradient of mean count rate. The numbers of threshold levels within the adaptation logic circuit and their mutual positions have been optimized to achieve the best compromise.
T2  - IEEE Transactions on Nuclear Science
T1  - Digital control of a bank of IIR filters in optimal processing of signals from pulse radiation detectors
VL  - 53
IS  - 6
SP  - 3855
EP  - 3864
DO  - 10.1109/TNS.2006.883837
ER  - 

@article{
author = "Šaponjić, Đorđe and Aranđelović, Vojislav and Stojić, Milic",
year = "2006",
abstract = "New algorithm for measurement of mean count rate of pulses from radiation detectors is described. The algorithm is based on the control of a bank of digital IIR filters governed by the state of mean count rate-stationary or transient. The algorithm solves successfully the compromise between the contradictory requirements for low statistical fluctuations in steady state and fast response to sudden changes of mean count rate. The design of the bank of IIR filters is carried out by using the Chebyshev approximation of the second kind in order to achieve the high selectivity and high stopband attenuation applying as low as possible order of the constituent filters. All designed filters are of the second order. The static and dynamic characteristics of the new algorithm and the corresponding computational efficiency are tested and compared with those of the traditional ratemeter algorithms. The state of mean count rate, stationary or transient, is determined by a circuit for estimation of the gradient of mean count rate. The numbers of threshold levels within the adaptation logic circuit and their mutual positions have been optimized to achieve the best compromise.",
journal = "IEEE Transactions on Nuclear Science",
title = "Digital control of a bank of IIR filters in optimal processing of signals from pulse radiation detectors",
volume = "53",
number = "6",
pages = "3855-3864",
doi = "10.1109/TNS.2006.883837"
}

Šaponjić, Đ., Aranđelović, V.,& Stojić, M.. (2006). Digital control of a bank of IIR filters in optimal processing of signals from pulse radiation detectors. in IEEE Transactions on Nuclear Science, 53(6), 3855-3864.
https://doi.org/10.1109/TNS.2006.883837

Šaponjić Đ, Aranđelović V, Stojić M. Digital control of a bank of IIR filters in optimal processing of signals from pulse radiation detectors. in IEEE Transactions on Nuclear Science. 2006;53(6):3855-3864.
doi:10.1109/TNS.2006.883837 .

Šaponjić, Đorđe, Aranđelović, Vojislav, Stojić, Milic, "Digital control of a bank of IIR filters in optimal processing of signals from pulse radiation detectors" in IEEE Transactions on Nuclear Science, 53, no. 6 (2006):3855-3864,
https://doi.org/10.1109/TNS.2006.883837 . .

TY  - JOUR
AU  - Šaponjić, Đorđe
AU  - Aranđelović, Vojislav
AU  - Stojić, Milic
PY  - 2006
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/3130
AB  - New algorithm for measurement of mean count rate of pulses from radiation detectors is described. The algorithm is based on the control of a bank of digital IIR filters governed by the state of mean count rate-stationary or transient. The algorithm solves successfully the compromise between the contradictory requirements for low statistical fluctuations in steady state and fast response to sudden changes of mean count rate. The design of the bank of IIR filters is carried out by using the Chebyshev approximation of the second kind in order to achieve the high selectivity and high stopband attenuation applying as low as possible order of the constituent filters. All designed filters are of the second order. The. static and dynamic characteristics of the new algorithm and the corresponding computational efficiency are tested and compared with those of the traditional ratemeter algorithms. The state of mean count rate, stationary or transient, is determined by a circuit for estimation of the gradient of mean count rate: The numbers of threshold levels within the adaptation logic circuit and their mutual positions have been optimized to achieve the best compromise.
T2  - IEEE Transactions on Nuclear Science
T1  - Digital control of a bank of IIR filters in optimal processing of signals from pulse radiation detectors
VL  - 53
IS  - 6
SP  - 3855
EP  - 3864
DO  - 10.1109/TNS.2006.883837
ER  - 

@article{
author = "Šaponjić, Đorđe and Aranđelović, Vojislav and Stojić, Milic",
year = "2006",
abstract = "New algorithm for measurement of mean count rate of pulses from radiation detectors is described. The algorithm is based on the control of a bank of digital IIR filters governed by the state of mean count rate-stationary or transient. The algorithm solves successfully the compromise between the contradictory requirements for low statistical fluctuations in steady state and fast response to sudden changes of mean count rate. The design of the bank of IIR filters is carried out by using the Chebyshev approximation of the second kind in order to achieve the high selectivity and high stopband attenuation applying as low as possible order of the constituent filters. All designed filters are of the second order. The. static and dynamic characteristics of the new algorithm and the corresponding computational efficiency are tested and compared with those of the traditional ratemeter algorithms. The state of mean count rate, stationary or transient, is determined by a circuit for estimation of the gradient of mean count rate: The numbers of threshold levels within the adaptation logic circuit and their mutual positions have been optimized to achieve the best compromise.",
journal = "IEEE Transactions on Nuclear Science",
title = "Digital control of a bank of IIR filters in optimal processing of signals from pulse radiation detectors",
volume = "53",
number = "6",
pages = "3855-3864",
doi = "10.1109/TNS.2006.883837"
}

Šaponjić, Đ., Aranđelović, V.,& Stojić, M.. (2006). Digital control of a bank of IIR filters in optimal processing of signals from pulse radiation detectors. in IEEE Transactions on Nuclear Science, 53(6), 3855-3864.
https://doi.org/10.1109/TNS.2006.883837

Šaponjić Đ, Aranđelović V, Stojić M. Digital control of a bank of IIR filters in optimal processing of signals from pulse radiation detectors. in IEEE Transactions on Nuclear Science. 2006;53(6):3855-3864.
doi:10.1109/TNS.2006.883837 .

Šaponjić, Đorđe, Aranđelović, Vojislav, Stojić, Milic, "Digital control of a bank of IIR filters in optimal processing of signals from pulse radiation detectors" in IEEE Transactions on Nuclear Science, 53, no. 6 (2006):3855-3864,
https://doi.org/10.1109/TNS.2006.883837 . .

TY  - JOUR
AU  - Marčeta Kaninski, Milica
AU  - Stojić, Dragica Lj.
AU  - Šaponjić, Đorđe
AU  - Potkonjak, Nebojša I.
AU  - Miljanić, Šćepan S.
PY  - 2006
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/6588
AB  - Hydrogen is one of the most widely produced commodities in the world economy. The basic technologies for producing hydrogen via the electrolysis of water have long been known. However, there are disadvantages when using this process. Two-thirds of the operation costs of the electrolyzers are electricity costs. The challenge, addressed.by numerous companies and researchers in the last few years, is the cost cutting by increasing efficiency of the process. The aim of this work was the attempt to optimize the electrolytic hydrogen production from alkaline solution, through the variation of cathode materials and use of ionic activators. The part of our results shows the better electrocatalytic activity of intermetallic phases and the energy consumption is decreased when compared with the industrial data (4.5-5 kWh m(-3) H-2). The role of ionic activator used is also very significant. These results give the opportunity for further research of cumulative effect of the intermetallic electrodes and ionic activators on industrial level. (c) 2005 Elsevier B.V. All rights reserved.
T2  - Journal of Power Sources
T1  - Comparison of different electrode materials - Energy requirements in the electrolytic hydrogen evolution process
VL  - 157
IS  - 2
SP  - 758
EP  - 764
DO  - 10.1016/j.jpowsour.2005.10.105
ER  - 

@article{
author = "Marčeta Kaninski, Milica and Stojić, Dragica Lj. and Šaponjić, Đorđe and Potkonjak, Nebojša I. and Miljanić, Šćepan S.",
year = "2006",
abstract = "Hydrogen is one of the most widely produced commodities in the world economy. The basic technologies for producing hydrogen via the electrolysis of water have long been known. However, there are disadvantages when using this process. Two-thirds of the operation costs of the electrolyzers are electricity costs. The challenge, addressed.by numerous companies and researchers in the last few years, is the cost cutting by increasing efficiency of the process. The aim of this work was the attempt to optimize the electrolytic hydrogen production from alkaline solution, through the variation of cathode materials and use of ionic activators. The part of our results shows the better electrocatalytic activity of intermetallic phases and the energy consumption is decreased when compared with the industrial data (4.5-5 kWh m(-3) H-2). The role of ionic activator used is also very significant. These results give the opportunity for further research of cumulative effect of the intermetallic electrodes and ionic activators on industrial level. (c) 2005 Elsevier B.V. All rights reserved.",
journal = "Journal of Power Sources",
title = "Comparison of different electrode materials - Energy requirements in the electrolytic hydrogen evolution process",
volume = "157",
number = "2",
pages = "758-764",
doi = "10.1016/j.jpowsour.2005.10.105"
}

Marčeta Kaninski, M., Stojić, D. Lj., Šaponjić, Đ., Potkonjak, N. I.,& Miljanić, Š. S.. (2006). Comparison of different electrode materials - Energy requirements in the electrolytic hydrogen evolution process. in Journal of Power Sources, 157(2), 758-764.
https://doi.org/10.1016/j.jpowsour.2005.10.105

Marčeta Kaninski M, Stojić DL, Šaponjić Đ, Potkonjak NI, Miljanić ŠS. Comparison of different electrode materials - Energy requirements in the electrolytic hydrogen evolution process. in Journal of Power Sources. 2006;157(2):758-764.
doi:10.1016/j.jpowsour.2005.10.105 .

Marčeta Kaninski, Milica, Stojić, Dragica Lj., Šaponjić, Đorđe, Potkonjak, Nebojša I., Miljanić, Šćepan S., "Comparison of different electrode materials - Energy requirements in the electrolytic hydrogen evolution process" in Journal of Power Sources, 157, no. 2 (2006):758-764,
https://doi.org/10.1016/j.jpowsour.2005.10.105 . .