TY  - CONF
AU  - Jelić, Marko
AU  - Korneeva, Ekaterina
AU  - Kirilkin, Nikita
AU  - Vershinina, Tatiana
AU  - Orelovich, Oleg
AU  - Skuratov, Vladimir
AU  - Jovanović, Zoran
AU  - Jovanović, Sonja
PY  - 2024
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/13145
PB  - Belgrade : Vinča Institute of Nuclear Sciences - National Institute of thе Republic of Serbia, University of Belgrade
PB  - Belgrade : Serbian Society for Innovative Materials in Extreme Conditions (SIM-EXTREME)
C3  - IMEC2024 - 2nd International Conference on Innovative Materials in Extreme Conditions : Book of abstracts
T1  - Physicochemical properties of bismuth vanadate photoanode irradiated by swift heavy ions
SP  - 41
EP  - 41
UR  - https://hdl.handle.net/21.15107/rcub_vinar_13145
ER  - 

@conference{
author = "Jelić, Marko and Korneeva, Ekaterina and Kirilkin, Nikita and Vershinina, Tatiana and Orelovich, Oleg and Skuratov, Vladimir and Jovanović, Zoran and Jovanović, Sonja",
year = "2024",
publisher = "Belgrade : Vinča Institute of Nuclear Sciences - National Institute of thе Republic of Serbia, University of Belgrade, Belgrade : Serbian Society for Innovative Materials in Extreme Conditions (SIM-EXTREME)",
journal = "IMEC2024 - 2nd International Conference on Innovative Materials in Extreme Conditions : Book of abstracts",
title = "Physicochemical properties of bismuth vanadate photoanode irradiated by swift heavy ions",
pages = "41-41",
url = "https://hdl.handle.net/21.15107/rcub_vinar_13145"
}

Jelić, M., Korneeva, E., Kirilkin, N., Vershinina, T., Orelovich, O., Skuratov, V., Jovanović, Z.,& Jovanović, S.. (2024). Physicochemical properties of bismuth vanadate photoanode irradiated by swift heavy ions. in IMEC2024 - 2nd International Conference on Innovative Materials in Extreme Conditions : Book of abstracts
Belgrade : Vinča Institute of Nuclear Sciences - National Institute of thе Republic of Serbia, University of Belgrade., 41-41.
https://hdl.handle.net/21.15107/rcub_vinar_13145

Jelić M, Korneeva E, Kirilkin N, Vershinina T, Orelovich O, Skuratov V, Jovanović Z, Jovanović S. Physicochemical properties of bismuth vanadate photoanode irradiated by swift heavy ions. in IMEC2024 - 2nd International Conference on Innovative Materials in Extreme Conditions : Book of abstracts. 2024;:41-41.
https://hdl.handle.net/21.15107/rcub_vinar_13145 .

Jelić, Marko, Korneeva, Ekaterina, Kirilkin, Nikita, Vershinina, Tatiana, Orelovich, Oleg, Skuratov, Vladimir, Jovanović, Zoran, Jovanović, Sonja, "Physicochemical properties of bismuth vanadate photoanode irradiated by swift heavy ions" in IMEC2024 - 2nd International Conference on Innovative Materials in Extreme Conditions : Book of abstracts (2024):41-41,
https://hdl.handle.net/21.15107/rcub_vinar_13145 .

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

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

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

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

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

TY  - CONF
AU  - Jelić, Marko
AU  - Korneeva, Ekaterina
AU  - Kirilkin, Nikita
AU  - Vershinina, Tatiana
AU  - Orelovich, Oleg
AU  - Skuratov, Vladimir
AU  - Jovanović, Zoran
AU  - Jovanović, Sonja
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11645
AB  - Photoelectrochemical (PEC) cells for solar-energy conversion have received huge interest as a promising technology for renewable energy production. For the efficient application of such cells, it is necessary to develop adequate photoelectrodes. Recently, bismuth vanadate (BiVO4) has emerged as a promising photoanode due to its visible light harvesting properties, band edge positions and low-cost of synthesis. In this study, the effects of N5+ ion irradiation (75keV, 2 × 1014 and 4 × 1014 ions/cm2 ) on physicochemical properties of hydrothermally synthesized BiVO4 thin films were examined. From X-ray diffraction (XRD) study can be concluded that initial monoclinic material didn’t sustain any phase transition after irradiation. Also, preferential orientation remained dominantly along [010] direction with a slightly increasing share of [121] oriented growth, especially after irradiation with 2 × 1014 ions/cm2 . XRD measurements showed shift towards the higher 2θ after irradiation which indicates that interplanar distances decreases. The highest level of crystallinity was observed for the sample irradiated with fluence of 4 × 1014 ions/cm2 . Scanning electron microscopy (SEM) revealed prismatic morphology of all samples with an average grain size of 600 nm without visible traces of irradiation.Raman spectroscopy confirmed presence of bands that correspond to the monoclinic scheelite phase. X-ray photoelectron spectroscopy (XPS) analysis of V 2p confirmed presence of V5+ and V4+ while analysis of O 1s confirmed presence of oxygen in the form of lattice oxygen and in the form of hydroxide. UV-Vis Diffuse Reflectance spectroscopy revealed that calculated band gap decreases with the increase of fluence.
PB  - Belgrade : Serbian Ceramic Society
C3  - Advanced Ceramics and Application :11th Serbian Ceramic Society Conference : program and the book of abstracts; September 18-20, 2023; Belgrade
T1  - Influence of N5+ ion irradiation on physicochemical properties of bismuth vanadate
SP  - 67
EP  - 68
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11645
ER  - 

@conference{
author = "Jelić, Marko and Korneeva, Ekaterina and Kirilkin, Nikita and Vershinina, Tatiana and Orelovich, Oleg and Skuratov, Vladimir and Jovanović, Zoran and Jovanović, Sonja",
year = "2023",
abstract = "Photoelectrochemical (PEC) cells for solar-energy conversion have received huge interest as a promising technology for renewable energy production. For the efficient application of such cells, it is necessary to develop adequate photoelectrodes. Recently, bismuth vanadate (BiVO4) has emerged as a promising photoanode due to its visible light harvesting properties, band edge positions and low-cost of synthesis. In this study, the effects of N5+ ion irradiation (75keV, 2 × 1014 and 4 × 1014 ions/cm2 ) on physicochemical properties of hydrothermally synthesized BiVO4 thin films were examined. From X-ray diffraction (XRD) study can be concluded that initial monoclinic material didn’t sustain any phase transition after irradiation. Also, preferential orientation remained dominantly along [010] direction with a slightly increasing share of [121] oriented growth, especially after irradiation with 2 × 1014 ions/cm2 . XRD measurements showed shift towards the higher 2θ after irradiation which indicates that interplanar distances decreases. The highest level of crystallinity was observed for the sample irradiated with fluence of 4 × 1014 ions/cm2 . Scanning electron microscopy (SEM) revealed prismatic morphology of all samples with an average grain size of 600 nm without visible traces of irradiation.Raman spectroscopy confirmed presence of bands that correspond to the monoclinic scheelite phase. X-ray photoelectron spectroscopy (XPS) analysis of V 2p confirmed presence of V5+ and V4+ while analysis of O 1s confirmed presence of oxygen in the form of lattice oxygen and in the form of hydroxide. UV-Vis Diffuse Reflectance spectroscopy revealed that calculated band gap decreases with the increase of fluence.",
publisher = "Belgrade : Serbian Ceramic Society",
journal = "Advanced Ceramics and Application :11th Serbian Ceramic Society Conference : program and the book of abstracts; September 18-20, 2023; Belgrade",
title = "Influence of N5+ ion irradiation on physicochemical properties of bismuth vanadate",
pages = "67-68",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11645"
}

Jelić, M., Korneeva, E., Kirilkin, N., Vershinina, T., Orelovich, O., Skuratov, V., Jovanović, Z.,& Jovanović, S.. (2023). Influence of N5+ ion irradiation on physicochemical properties of bismuth vanadate. in Advanced Ceramics and Application :11th Serbian Ceramic Society Conference : program and the book of abstracts; September 18-20, 2023; Belgrade
Belgrade : Serbian Ceramic Society., 67-68.
https://hdl.handle.net/21.15107/rcub_vinar_11645

Jelić M, Korneeva E, Kirilkin N, Vershinina T, Orelovich O, Skuratov V, Jovanović Z, Jovanović S. Influence of N5+ ion irradiation on physicochemical properties of bismuth vanadate. in Advanced Ceramics and Application :11th Serbian Ceramic Society Conference : program and the book of abstracts; September 18-20, 2023; Belgrade. 2023;:67-68.
https://hdl.handle.net/21.15107/rcub_vinar_11645 .

Jelić, Marko, Korneeva, Ekaterina, Kirilkin, Nikita, Vershinina, Tatiana, Orelovich, Oleg, Skuratov, Vladimir, Jovanović, Zoran, Jovanović, Sonja, "Influence of N5+ ion irradiation on physicochemical properties of bismuth vanadate" in Advanced Ceramics and Application :11th Serbian Ceramic Society Conference : program and the book of abstracts; September 18-20, 2023; Belgrade (2023):67-68,
https://hdl.handle.net/21.15107/rcub_vinar_11645 .

TY  - CONF
AU  - Jelić, Marko
AU  - Korneeva, Ekaterina
AU  - Kirilkin, Nikita
AU  - Vershinina, Tatiana
AU  - Orelovich, Oleg
AU  - Skuratov, Vladimir
AU  - Jovanović, Zoran
AU  - Jovanović, Sonja
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11654
AB  - Monoclinic bismuth vanadate (BiVO4) is considered to be one of the most promising photoanode materials for photoelectrochemical (PEC) water splitting due to its suitable band gap and band structure, good stability and low-cost synthesis. However, BiVO4 has poor charge transfer properties due to the high rate of electron-hole recombination and understanding the effects contributing to it is important for further improvements. Herein, we report the effect of swift heavy ion irradiation (Xe, 150 MeV, 1010 – 5×1011 ions/cm2 ) on physicochemical properties of hydrothermally synthesized BiVO4 thin films. X-ray diffraction study (XRD) showed that irradiated material preserved initial monoclinic scheelite crystal phase and preferential growth along [010] direction. As the fluence increased, a shift of the diffraction maxima towards lower 2θ values was observed indicating increased interplanar distances. Also, for the 5×1011 ions/cm2 irradiated sample, high degree of amorphization was noticed. Scanning electron microscopy (SEM) of all samples showed prismatic grains with an average size of 600 nm. In irradiated samples formation of ion tracks, ~10 nm in diameter, was observed. X-ray photoelectron spectroscopy (XPS) analysis of Bi 4f, V 2p and O 1s states showed that, after irradiation, increased amounts of V4+ and oxygen in the form of hydroxide occurred, especially at higher fluences. By using UV-Vis Diffuse Reflectance spectroscopy we showed that band gap decreased with the increase of fluence. Photocurrent densities obtained from linear sweep voltammetry indicated that irradiation with fluences higher than 1010 ions/cm2 have a notable negative effect on PEC oxygen evolution reaction. However, 1-hour-long chronoamperometry measurements of 1010 ions/cm2 irradiated sample revealed an increase of photocurrent densities. In order to get a better insight into preceding phenomena, we performed XRD, SEM and XPS analysis after PEC process.
PB  - Belgrade : Materials Research Society of Serbia
C3  - YUCOMAT 2023 : 24th Annual Conference YUCOMAT 2023 : programme and the book of abstracts; September 4-8, 2023; Herceg Novi, Montenegro
T1  - The effect of swift heavy ion irradiation on physicochemical properties of monoclinic bismuth vanadate
SP  - 95
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11654
ER  - 

@conference{
author = "Jelić, Marko and Korneeva, Ekaterina and Kirilkin, Nikita and Vershinina, Tatiana and Orelovich, Oleg and Skuratov, Vladimir and Jovanović, Zoran and Jovanović, Sonja",
year = "2023",
abstract = "Monoclinic bismuth vanadate (BiVO4) is considered to be one of the most promising photoanode materials for photoelectrochemical (PEC) water splitting due to its suitable band gap and band structure, good stability and low-cost synthesis. However, BiVO4 has poor charge transfer properties due to the high rate of electron-hole recombination and understanding the effects contributing to it is important for further improvements. Herein, we report the effect of swift heavy ion irradiation (Xe, 150 MeV, 1010 – 5×1011 ions/cm2 ) on physicochemical properties of hydrothermally synthesized BiVO4 thin films. X-ray diffraction study (XRD) showed that irradiated material preserved initial monoclinic scheelite crystal phase and preferential growth along [010] direction. As the fluence increased, a shift of the diffraction maxima towards lower 2θ values was observed indicating increased interplanar distances. Also, for the 5×1011 ions/cm2 irradiated sample, high degree of amorphization was noticed. Scanning electron microscopy (SEM) of all samples showed prismatic grains with an average size of 600 nm. In irradiated samples formation of ion tracks, ~10 nm in diameter, was observed. X-ray photoelectron spectroscopy (XPS) analysis of Bi 4f, V 2p and O 1s states showed that, after irradiation, increased amounts of V4+ and oxygen in the form of hydroxide occurred, especially at higher fluences. By using UV-Vis Diffuse Reflectance spectroscopy we showed that band gap decreased with the increase of fluence. Photocurrent densities obtained from linear sweep voltammetry indicated that irradiation with fluences higher than 1010 ions/cm2 have a notable negative effect on PEC oxygen evolution reaction. However, 1-hour-long chronoamperometry measurements of 1010 ions/cm2 irradiated sample revealed an increase of photocurrent densities. In order to get a better insight into preceding phenomena, we performed XRD, SEM and XPS analysis after PEC process.",
publisher = "Belgrade : Materials Research Society of Serbia",
journal = "YUCOMAT 2023 : 24th Annual Conference YUCOMAT 2023 : programme and the book of abstracts; September 4-8, 2023; Herceg Novi, Montenegro",
title = "The effect of swift heavy ion irradiation on physicochemical properties of monoclinic bismuth vanadate",
pages = "95",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11654"
}

Jelić, M., Korneeva, E., Kirilkin, N., Vershinina, T., Orelovich, O., Skuratov, V., Jovanović, Z.,& Jovanović, S.. (2023). The effect of swift heavy ion irradiation on physicochemical properties of monoclinic bismuth vanadate. in YUCOMAT 2023 : 24th Annual Conference YUCOMAT 2023 : programme and the book of abstracts; September 4-8, 2023; Herceg Novi, Montenegro
Belgrade : Materials Research Society of Serbia., 95.
https://hdl.handle.net/21.15107/rcub_vinar_11654

Jelić M, Korneeva E, Kirilkin N, Vershinina T, Orelovich O, Skuratov V, Jovanović Z, Jovanović S. The effect of swift heavy ion irradiation on physicochemical properties of monoclinic bismuth vanadate. in YUCOMAT 2023 : 24th Annual Conference YUCOMAT 2023 : programme and the book of abstracts; September 4-8, 2023; Herceg Novi, Montenegro. 2023;:95.
https://hdl.handle.net/21.15107/rcub_vinar_11654 .

Jelić, Marko, Korneeva, Ekaterina, Kirilkin, Nikita, Vershinina, Tatiana, Orelovich, Oleg, Skuratov, Vladimir, Jovanović, Zoran, Jovanović, Sonja, "The effect of swift heavy ion irradiation on physicochemical properties of monoclinic bismuth vanadate" in YUCOMAT 2023 : 24th Annual Conference YUCOMAT 2023 : programme and the book of abstracts; September 4-8, 2023; Herceg Novi, Montenegro (2023):95,
https://hdl.handle.net/21.15107/rcub_vinar_11654 .

TY  - CONF
AU  - Grujičić, Marija
AU  - Jelić, Marko
AU  - Stojković Simatović, Ivana
AU  - Bajuk Bogdanović, Danica
AU  - Petković, Darija
AU  - Jovanović, Zoran
AU  - Jovanović, Sonja
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12317
AB  - In this study, solvothermally synthesized nanoparticles of cobalt ferrite (CoFe2O4, CFO) and Zn/Ga-dopped cobalt ferrite (Co0.5Zn0.5Fe2O4, CFO_Zn and CoFe1.5Ga0.5O4, CFO_Ga, respectively) with dihydrocaffeic acid (DHCA) as a surfactant were examined for electrochemical detection of gallic acid. Based on X-ray diffraction analysis, diffraction maxima of all samples correspond to the cubic spinel phase, while transmission electron microscopy showed that the nanoparticles are non-agglomerated, sphere-like with an average size of 5±1 nm. The presence of DHCA on the surface of nanoparticles was confirmed by Fourier Transform Infrared Spectroscopy (FTIR). For the purpose of electrochemical detection of gallic acid the modified glassy carbon electrode (m-GCE) was prepared from CFO, CFO_Zn and CFO_Ga nanoparticles. Initial tests have shown instability/disintegration of m-GCE in aqueous solutions, because of which samples were annealed at 450 °C in air. Cyclic voltammograms of all annealed samples showed good reversibility in the system [Fe(CN)6] 3-/4- . The most efficient electron transfer was achieved when the mass ratio between sample and Nafion® was 85:15, respectively. The best sensitivity to gallic acid (10-4 M, in Britton-Robinson buffer) was observed for CFO_Zn sample. Results are showing that by selective functionalization and surface modification of nanoparticles, it is possible to optimize the electrochemical properties suitable for sensing, which is the basis of this method and the goal of further research.
PB  - Belgrade : Institute of Technical Sciences of SASA
C3  - 21st Young Researchers' Conference Materials Sciences and Engineering : program and the book of abstracts
T1  - Enhanced electrochemical detection of gallic acid using modified glassy carbon electrodes with Zn/Ga-dopped cobalt ferrite
SP  - 44
EP  - 44
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12317
ER  - 

@conference{
author = "Grujičić, Marija and Jelić, Marko and Stojković Simatović, Ivana and Bajuk Bogdanović, Danica and Petković, Darija and Jovanović, Zoran and Jovanović, Sonja",
year = "2023",
abstract = "In this study, solvothermally synthesized nanoparticles of cobalt ferrite (CoFe2O4, CFO) and Zn/Ga-dopped cobalt ferrite (Co0.5Zn0.5Fe2O4, CFO_Zn and CoFe1.5Ga0.5O4, CFO_Ga, respectively) with dihydrocaffeic acid (DHCA) as a surfactant were examined for electrochemical detection of gallic acid. Based on X-ray diffraction analysis, diffraction maxima of all samples correspond to the cubic spinel phase, while transmission electron microscopy showed that the nanoparticles are non-agglomerated, sphere-like with an average size of 5±1 nm. The presence of DHCA on the surface of nanoparticles was confirmed by Fourier Transform Infrared Spectroscopy (FTIR). For the purpose of electrochemical detection of gallic acid the modified glassy carbon electrode (m-GCE) was prepared from CFO, CFO_Zn and CFO_Ga nanoparticles. Initial tests have shown instability/disintegration of m-GCE in aqueous solutions, because of which samples were annealed at 450 °C in air. Cyclic voltammograms of all annealed samples showed good reversibility in the system [Fe(CN)6] 3-/4- . The most efficient electron transfer was achieved when the mass ratio between sample and Nafion® was 85:15, respectively. The best sensitivity to gallic acid (10-4 M, in Britton-Robinson buffer) was observed for CFO_Zn sample. Results are showing that by selective functionalization and surface modification of nanoparticles, it is possible to optimize the electrochemical properties suitable for sensing, which is the basis of this method and the goal of further research.",
publisher = "Belgrade : Institute of Technical Sciences of SASA",
journal = "21st Young Researchers' Conference Materials Sciences and Engineering : program and the book of abstracts",
title = "Enhanced electrochemical detection of gallic acid using modified glassy carbon electrodes with Zn/Ga-dopped cobalt ferrite",
pages = "44-44",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12317"
}

Grujičić, M., Jelić, M., Stojković Simatović, I., Bajuk Bogdanović, D., Petković, D., Jovanović, Z.,& Jovanović, S.. (2023). Enhanced electrochemical detection of gallic acid using modified glassy carbon electrodes with Zn/Ga-dopped cobalt ferrite. in 21st Young Researchers' Conference Materials Sciences and Engineering : program and the book of abstracts
Belgrade : Institute of Technical Sciences of SASA., 44-44.
https://hdl.handle.net/21.15107/rcub_vinar_12317

Grujičić M, Jelić M, Stojković Simatović I, Bajuk Bogdanović D, Petković D, Jovanović Z, Jovanović S. Enhanced electrochemical detection of gallic acid using modified glassy carbon electrodes with Zn/Ga-dopped cobalt ferrite. in 21st Young Researchers' Conference Materials Sciences and Engineering : program and the book of abstracts. 2023;:44-44.
https://hdl.handle.net/21.15107/rcub_vinar_12317 .

Grujičić, Marija, Jelić, Marko, Stojković Simatović, Ivana, Bajuk Bogdanović, Danica, Petković, Darija, Jovanović, Zoran, Jovanović, Sonja, "Enhanced electrochemical detection of gallic acid using modified glassy carbon electrodes with Zn/Ga-dopped cobalt ferrite" in 21st Young Researchers' Conference Materials Sciences and Engineering : program and the book of abstracts (2023):44-44,
https://hdl.handle.net/21.15107/rcub_vinar_12317 .

TY  - CONF
AU  - Jelić, Marko
AU  - Korneeva, Ekaterina
AU  - Kirilkin, Nikita
AU  - Vershinina, Tatiana
AU  - Orelovich, Oleg
AU  - Skuratov, Vladimir
AU  - Jovanović, Zoran
AU  - Jovanović, Sonja
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12324
AB  - Photoelectrochemical (PEC) water splitting is a promising route for solar energy harvesting and storage. The most challenging obstacle for efficient water splitting is development of catalysts for oxygen evolution reaction (OER). Monoclinic bismuth vanadate (BiVO4, BVO) stands out as an excellent photoanode material due to its high stability in near-neutral electrolytes, suitable band structure and low-cost synthesis. However, pronounced charge recombination is a huge limiting factor and understanding the effects contributing to it is important for further improvements. In present study, we report the effect of swift heavy ion (SHI) irradiation (Xe, 150 MeV, 1 × 1010 – 5 × 1011 ions cm-2 ) on physicochemical properties of hydrothermally synthesized BVO thin films. X-ray diffraction (XRD) study showed that irradiated material preserved initial monoclinic scheelite phase and preferential growth along [010] direction together with the presence of notable amorphization at the highest fluence. Scanning electron microscopy (SEM) of all samples showed prismatic grains with an average size of 600 nm with the appearance of ion tracks after irradiation. More detailed examination of 1 × 1010 ions cm-2 irradiated sample by transmission electron microscopy (TEM) revealed presence of amorphous ion tracks (~ 10 nm in diameter) and hillocks at the BVO surface (~ 10 nm in height). Raman spectra showed bands that correspond to the monoclinic scheelite phase as well as the presence of new bands for 5 × 1011 ion cm-2 irradiated sample at 420 and 915 cm-1 that originate from complex vanadium oxides. X-ray photoelectron spectroscopy (XPS) after SHI irradiation showed an increase of V4+ states and oxygen vacancies, especially at higher fluences. Diffuse reflectance spectroscopy (DRS) measurements showed decrease of band gap with the increase of fluence. Photocurrent densities, obtained from 1-hour-long chronoamperometry measurements, showed that irradiation with 1 × 1010 ions cm-2 fluence leads to gradual recovery of PEC oxygen evolution with time. XRD, SEM and XPS measurements performed after PEC reveal complex changes in the BVO, including dissolution of the material along ion tracks.
PB  - Belgrade : Institute of Technical Sciences of SASA
C3  - 21st Young Researchers' Conference Materials Sciences and Engineering : program and the book of abstracts
T1  - Photoelectrochemical water oxidation properties of bismuth vanadate photoanode irradiated by swift heavy ions
SP  - 53
EP  - 53
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12324
ER  - 

@conference{
author = "Jelić, Marko and Korneeva, Ekaterina and Kirilkin, Nikita and Vershinina, Tatiana and Orelovich, Oleg and Skuratov, Vladimir and Jovanović, Zoran and Jovanović, Sonja",
year = "2023",
abstract = "Photoelectrochemical (PEC) water splitting is a promising route for solar energy harvesting and storage. The most challenging obstacle for efficient water splitting is development of catalysts for oxygen evolution reaction (OER). Monoclinic bismuth vanadate (BiVO4, BVO) stands out as an excellent photoanode material due to its high stability in near-neutral electrolytes, suitable band structure and low-cost synthesis. However, pronounced charge recombination is a huge limiting factor and understanding the effects contributing to it is important for further improvements. In present study, we report the effect of swift heavy ion (SHI) irradiation (Xe, 150 MeV, 1 × 1010 – 5 × 1011 ions cm-2 ) on physicochemical properties of hydrothermally synthesized BVO thin films. X-ray diffraction (XRD) study showed that irradiated material preserved initial monoclinic scheelite phase and preferential growth along [010] direction together with the presence of notable amorphization at the highest fluence. Scanning electron microscopy (SEM) of all samples showed prismatic grains with an average size of 600 nm with the appearance of ion tracks after irradiation. More detailed examination of 1 × 1010 ions cm-2 irradiated sample by transmission electron microscopy (TEM) revealed presence of amorphous ion tracks (~ 10 nm in diameter) and hillocks at the BVO surface (~ 10 nm in height). Raman spectra showed bands that correspond to the monoclinic scheelite phase as well as the presence of new bands for 5 × 1011 ion cm-2 irradiated sample at 420 and 915 cm-1 that originate from complex vanadium oxides. X-ray photoelectron spectroscopy (XPS) after SHI irradiation showed an increase of V4+ states and oxygen vacancies, especially at higher fluences. Diffuse reflectance spectroscopy (DRS) measurements showed decrease of band gap with the increase of fluence. Photocurrent densities, obtained from 1-hour-long chronoamperometry measurements, showed that irradiation with 1 × 1010 ions cm-2 fluence leads to gradual recovery of PEC oxygen evolution with time. XRD, SEM and XPS measurements performed after PEC reveal complex changes in the BVO, including dissolution of the material along ion tracks.",
publisher = "Belgrade : Institute of Technical Sciences of SASA",
journal = "21st Young Researchers' Conference Materials Sciences and Engineering : program and the book of abstracts",
title = "Photoelectrochemical water oxidation properties of bismuth vanadate photoanode irradiated by swift heavy ions",
pages = "53-53",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12324"
}

Jelić, M., Korneeva, E., Kirilkin, N., Vershinina, T., Orelovich, O., Skuratov, V., Jovanović, Z.,& Jovanović, S.. (2023). Photoelectrochemical water oxidation properties of bismuth vanadate photoanode irradiated by swift heavy ions. in 21st Young Researchers' Conference Materials Sciences and Engineering : program and the book of abstracts
Belgrade : Institute of Technical Sciences of SASA., 53-53.
https://hdl.handle.net/21.15107/rcub_vinar_12324

Jelić M, Korneeva E, Kirilkin N, Vershinina T, Orelovich O, Skuratov V, Jovanović Z, Jovanović S. Photoelectrochemical water oxidation properties of bismuth vanadate photoanode irradiated by swift heavy ions. in 21st Young Researchers' Conference Materials Sciences and Engineering : program and the book of abstracts. 2023;:53-53.
https://hdl.handle.net/21.15107/rcub_vinar_12324 .

Jelić, Marko, Korneeva, Ekaterina, Kirilkin, Nikita, Vershinina, Tatiana, Orelovich, Oleg, Skuratov, Vladimir, Jovanović, Zoran, Jovanović, Sonja, "Photoelectrochemical water oxidation properties of bismuth vanadate photoanode irradiated by swift heavy ions" in 21st Young Researchers' Conference Materials Sciences and Engineering : program and the book of abstracts (2023):53-53,
https://hdl.handle.net/21.15107/rcub_vinar_12324 .

TY  - CONF
AU  - Jelić, Marko
AU  - Korneeva, Ekaterina
AU  - Kirilkin, Nikita
AU  - Vershinina, Tatiana
AU  - Orelovich, Oleg
AU  - Skuratov, Vladimir
AU  - Jovanović, Zoran
AU  - Jovanović, Sonja
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12433
PB  - Russia, Dubna : Joint Institute for Nuclear Research
C3  - AYSS-2023 : The XXVII International Scientific Conference of Young Scientists and Specialists
T1  - The impact of swift heavy ion irradiation on bismuth vanadate photoanode for photoelectrochemical water oxidation
SP  - 1238
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12433
ER  - 

@conference{
author = "Jelić, Marko and Korneeva, Ekaterina and Kirilkin, Nikita and Vershinina, Tatiana and Orelovich, Oleg and Skuratov, Vladimir and Jovanović, Zoran and Jovanović, Sonja",
year = "2023",
publisher = "Russia, Dubna : Joint Institute for Nuclear Research",
journal = "AYSS-2023 : The XXVII International Scientific Conference of Young Scientists and Specialists",
title = "The impact of swift heavy ion irradiation on bismuth vanadate photoanode for photoelectrochemical water oxidation",
pages = "1238",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12433"
}

Jelić, M., Korneeva, E., Kirilkin, N., Vershinina, T., Orelovich, O., Skuratov, V., Jovanović, Z.,& Jovanović, S.. (2023). The impact of swift heavy ion irradiation on bismuth vanadate photoanode for photoelectrochemical water oxidation. in AYSS-2023 : The XXVII International Scientific Conference of Young Scientists and Specialists
Russia, Dubna : Joint Institute for Nuclear Research., 1238.
https://hdl.handle.net/21.15107/rcub_vinar_12433

Jelić M, Korneeva E, Kirilkin N, Vershinina T, Orelovich O, Skuratov V, Jovanović Z, Jovanović S. The impact of swift heavy ion irradiation on bismuth vanadate photoanode for photoelectrochemical water oxidation. in AYSS-2023 : The XXVII International Scientific Conference of Young Scientists and Specialists. 2023;:1238.
https://hdl.handle.net/21.15107/rcub_vinar_12433 .

Jelić, Marko, Korneeva, Ekaterina, Kirilkin, Nikita, Vershinina, Tatiana, Orelovich, Oleg, Skuratov, Vladimir, Jovanović, Zoran, Jovanović, Sonja, "The impact of swift heavy ion irradiation on bismuth vanadate photoanode for photoelectrochemical water oxidation" in AYSS-2023 : The XXVII International Scientific Conference of Young Scientists and Specialists (2023):1238,
https://hdl.handle.net/21.15107/rcub_vinar_12433 .

TY  - CONF
AU  - Jelić, Marko
AU  - Pašti, Igor
AU  - Nedić Vasiljević, Bojana
AU  - Erčić, Jelena
AU  - Bajuk-Bogdanović, Danica
AU  - Jovanović, Zoran
AU  - Jovanović, Sonja
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12427
AB  - Environmentaly friendly photoelectrochemical (PEC) materals are in the center of the research
interest for sustainable solar-to-chemical energy conversion. Lately, bismuth vanadate (BiVO4)
has attracted attention due to its visible light harvesting properties, band edge positions and lowcost synthesis method. However, BiVO4 has poor charge transfer properties due to the high rate
of electron-hole recombination. It has been shown that metal doping efficiently boosts charge
separation and hence increases PEC water splitting activity. Herein, we report physicochemical
properties of hydrothermaly sinthesized 1%-, 2.5%- and 5%- Cu-doped BiVO4 powders for 8 h
and 20 h. X-ray diffraction (XRD) study indicates that, depending on the degree of doping and
synthesis time, material exists in monoclinic or tetragonal scheelite phase, but mixed phase
composition was also possible. Monoclinic phase was formed in a case of pristine samples
(synthesized for 8 h and 20 h) and 1% and 2.5% doped samples synthesized for 8 h. Tetragonal
phase was observed in case of 5% and 1% doped samples synthesized for 8 h and 20 h,
respectively. In the samples synthesized for 20 h and doped with 2.5% and 5% mixed phase was
noticed. Scanning electron microscopy (SEM) reveals that samples with monoclinic phase
consists of combination of worm-like and prismatic structures while tetragonal samples showed
spherical shape. In case of samples with mixed phase a combination of prismatic and spherical
shape was observed. Local structure was examined with Raman and Fourier Transformed Infrared
(FTIR) spectroscopy. Optical properties were characterized with UV-Vis Diffuse Reflectance
Spectroscopy (DRS) and Photoluminescence (PL) spectroscopy. Monoclinic phase has band gap
in range 2.35 – 2.52 eV while samples with tetragonal phase has band gap in range 2.8 – 3 eV.
Based on the results it can be concluded that band gap is dependent on the phase composition of
samples. PL results indicate that monoclinic samples possess better recombination features than
tetragonal ones. Preliminary measurements confirmed considerable higher PEC activity of lightirradiated samples.
PB  - Belgrade : Materials Research Society of Serbia – MRS-Serbia
C3  - 23rd annual conference - YUCOMAT 2022 & 12th World Round Table Conference on Sintering - WRTCS 2022 : Program and Book of Abstracts
T1  - Physicochemical properties of copper-doped bismuth vanadate nanoparticles
VL  - XLV
SP  - 132
EP  - 132
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12427
ER  - 

@conference{
author = "Jelić, Marko and Pašti, Igor and Nedić Vasiljević, Bojana and Erčić, Jelena and Bajuk-Bogdanović, Danica and Jovanović, Zoran and Jovanović, Sonja",
year = "2022",
abstract = "Environmentaly friendly photoelectrochemical (PEC) materals are in the center of the research
interest for sustainable solar-to-chemical energy conversion. Lately, bismuth vanadate (BiVO4)
has attracted attention due to its visible light harvesting properties, band edge positions and lowcost synthesis method. However, BiVO4 has poor charge transfer properties due to the high rate
of electron-hole recombination. It has been shown that metal doping efficiently boosts charge
separation and hence increases PEC water splitting activity. Herein, we report physicochemical
properties of hydrothermaly sinthesized 1%-, 2.5%- and 5%- Cu-doped BiVO4 powders for 8 h
and 20 h. X-ray diffraction (XRD) study indicates that, depending on the degree of doping and
synthesis time, material exists in monoclinic or tetragonal scheelite phase, but mixed phase
composition was also possible. Monoclinic phase was formed in a case of pristine samples
(synthesized for 8 h and 20 h) and 1% and 2.5% doped samples synthesized for 8 h. Tetragonal
phase was observed in case of 5% and 1% doped samples synthesized for 8 h and 20 h,
respectively. In the samples synthesized for 20 h and doped with 2.5% and 5% mixed phase was
noticed. Scanning electron microscopy (SEM) reveals that samples with monoclinic phase
consists of combination of worm-like and prismatic structures while tetragonal samples showed
spherical shape. In case of samples with mixed phase a combination of prismatic and spherical
shape was observed. Local structure was examined with Raman and Fourier Transformed Infrared
(FTIR) spectroscopy. Optical properties were characterized with UV-Vis Diffuse Reflectance
Spectroscopy (DRS) and Photoluminescence (PL) spectroscopy. Monoclinic phase has band gap
in range 2.35 – 2.52 eV while samples with tetragonal phase has band gap in range 2.8 – 3 eV.
Based on the results it can be concluded that band gap is dependent on the phase composition of
samples. PL results indicate that monoclinic samples possess better recombination features than
tetragonal ones. Preliminary measurements confirmed considerable higher PEC activity of lightirradiated samples.",
publisher = "Belgrade : Materials Research Society of Serbia – MRS-Serbia",
journal = "23rd annual conference - YUCOMAT 2022 & 12th World Round Table Conference on Sintering - WRTCS 2022 : Program and Book of Abstracts",
title = "Physicochemical properties of copper-doped bismuth vanadate nanoparticles",
volume = "XLV",
pages = "132-132",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12427"
}

Jelić, M., Pašti, I., Nedić Vasiljević, B., Erčić, J., Bajuk-Bogdanović, D., Jovanović, Z.,& Jovanović, S.. (2022). Physicochemical properties of copper-doped bismuth vanadate nanoparticles. in 23rd annual conference - YUCOMAT 2022 & 12th World Round Table Conference on Sintering - WRTCS 2022 : Program and Book of Abstracts
Belgrade : Materials Research Society of Serbia – MRS-Serbia., XLV, 132-132.
https://hdl.handle.net/21.15107/rcub_vinar_12427

Jelić M, Pašti I, Nedić Vasiljević B, Erčić J, Bajuk-Bogdanović D, Jovanović Z, Jovanović S. Physicochemical properties of copper-doped bismuth vanadate nanoparticles. in 23rd annual conference - YUCOMAT 2022 & 12th World Round Table Conference on Sintering - WRTCS 2022 : Program and Book of Abstracts. 2022;XLV:132-132.
https://hdl.handle.net/21.15107/rcub_vinar_12427 .

Jelić, Marko, Pašti, Igor, Nedić Vasiljević, Bojana, Erčić, Jelena, Bajuk-Bogdanović, Danica, Jovanović, Zoran, Jovanović, Sonja, "Physicochemical properties of copper-doped bismuth vanadate nanoparticles" in 23rd annual conference - YUCOMAT 2022 & 12th World Round Table Conference on Sintering - WRTCS 2022 : Program and Book of Abstracts, XLV (2022):132-132,
https://hdl.handle.net/21.15107/rcub_vinar_12427 .

TY  - CONF
AU  - Jelić, Marko
AU  - Pašti, Igor
AU  - Nedić Vasiljević, Bojana
AU  - Erčić, Jelena
AU  - Bajuk-Bogdanović, Danica
AU  - Jovanović, Zoran
AU  - Jovanović, Sonja
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12428
PB  - Russia, Dubna : Joint Institute for Nuclear Research
C3  - AYSS-2022 : The XXVI International Scientific Conference of Young Scientists and Specialists
T1  - The effect of Cu doping on physicochemical properties of bismuth vanadate
SP  - 1132
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12428
ER  - 

@conference{
author = "Jelić, Marko and Pašti, Igor and Nedić Vasiljević, Bojana and Erčić, Jelena and Bajuk-Bogdanović, Danica and Jovanović, Zoran and Jovanović, Sonja",
year = "2022",
publisher = "Russia, Dubna : Joint Institute for Nuclear Research",
journal = "AYSS-2022 : The XXVI International Scientific Conference of Young Scientists and Specialists",
title = "The effect of Cu doping on physicochemical properties of bismuth vanadate",
pages = "1132",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12428"
}

Jelić, M., Pašti, I., Nedić Vasiljević, B., Erčić, J., Bajuk-Bogdanović, D., Jovanović, Z.,& Jovanović, S.. (2022). The effect of Cu doping on physicochemical properties of bismuth vanadate. in AYSS-2022 : The XXVI International Scientific Conference of Young Scientists and Specialists
Russia, Dubna : Joint Institute for Nuclear Research., 1132.
https://hdl.handle.net/21.15107/rcub_vinar_12428

Jelić M, Pašti I, Nedić Vasiljević B, Erčić J, Bajuk-Bogdanović D, Jovanović Z, Jovanović S. The effect of Cu doping on physicochemical properties of bismuth vanadate. in AYSS-2022 : The XXVI International Scientific Conference of Young Scientists and Specialists. 2022;:1132.
https://hdl.handle.net/21.15107/rcub_vinar_12428 .

Jelić, Marko, Pašti, Igor, Nedić Vasiljević, Bojana, Erčić, Jelena, Bajuk-Bogdanović, Danica, Jovanović, Zoran, Jovanović, Sonja, "The effect of Cu doping on physicochemical properties of bismuth vanadate" in AYSS-2022 : The XXVI International Scientific Conference of Young Scientists and Specialists (2022):1132,
https://hdl.handle.net/21.15107/rcub_vinar_12428 .

TY  - CONF
AU  - Jelić, Marko
AU  - Pašti, Igor
AU  - Nedić Vasiljević, Bojana
AU  - Erčić, Jelena
AU  - Bajuk-Bogdanović, Danica
AU  - Jovanović, Zoran
AU  - Jovanović, Sonja
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12430
AB  - Production of gasses such as hydrogen and oxygen on a large scale is of the great importance both in industry and in environmental protection. To achieve it, photoelectrochemical (PEC) water splitting has been regarded as promising method and the developement of new semiconductors holds a key role to the efficent application. Due to its great light harvesting ability, band edge positions and low-cost synthesis method, bismuth vanadate (BiVO4; BVO) has been intensively studied as a photoanode material for water splitting. To overcome limitations such as charge carriers recombination, material should be doped with different transition metal elements. In this work physicochemical properties of pristine and 1%-, 2.5%- and 5%- Cu-doped BVO powders, solvothermaly synthesized at 180°C for 20 h, were reported. X-ray diffraction (XRD) study indicates that, depending on the doping level, the material exists in monoclinic or tetragonal scheelite phase, but mixed phase composition was also observed. Pure monoclinic and tetragonal phase was formed in a case of pristine and 1% doped sample, respectively, while 2.5%- and 5%- Cu-doped BVO exhibit presence of both phases. Scanning electron microscopy (SEM) reveals that sample with monoclinic phase consists of irregular worm-like morphology, while morphology of tetragonal samples was mostly spherical. For 2.5%- and 5%- Cu-doped samples a combination of prismatic and spherical shape morphology was observed. Local structure of material was examined with Raman spectroscopy and the results were in accordance with XRD study where band positions well matched the phase composition. Optical properties were characterized with UV-Vis Diffuse Reflectance Spectroscopy (DRS) and Photoluminescence (PL) spectroscopy. The band gap of monoclinic samples was in range 2.4-2.5 eV, while band gap of sample with tetragonal phase has band gap was between 2.8 and 3 eV. Dual phase samples had two different band gaps that originate from presence of both phases. Based on the results obtained from the PL spectra, monoclinic samples possess better recombination features than tetragonal ones. Photoelectrochemical measurements of BVO samples imply that doping of material improves performance towards oxygen evolution reaction.
PB  - Belgrade : Institute of Technical Sciences of SASA
C3  - 20th Young Researchers' Conference Materials Sciences and Engineering : program and the book of abstracts
T1  - The role of copper doping on physicochemical properties of bismuth vanadate
SP  - 30
EP  - 30
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12430
ER  - 

@conference{
author = "Jelić, Marko and Pašti, Igor and Nedić Vasiljević, Bojana and Erčić, Jelena and Bajuk-Bogdanović, Danica and Jovanović, Zoran and Jovanović, Sonja",
year = "2022",
abstract = "Production of gasses such as hydrogen and oxygen on a large scale is of the great importance both in industry and in environmental protection. To achieve it, photoelectrochemical (PEC) water splitting has been regarded as promising method and the developement of new semiconductors holds a key role to the efficent application. Due to its great light harvesting ability, band edge positions and low-cost synthesis method, bismuth vanadate (BiVO4; BVO) has been intensively studied as a photoanode material for water splitting. To overcome limitations such as charge carriers recombination, material should be doped with different transition metal elements. In this work physicochemical properties of pristine and 1%-, 2.5%- and 5%- Cu-doped BVO powders, solvothermaly synthesized at 180°C for 20 h, were reported. X-ray diffraction (XRD) study indicates that, depending on the doping level, the material exists in monoclinic or tetragonal scheelite phase, but mixed phase composition was also observed. Pure monoclinic and tetragonal phase was formed in a case of pristine and 1% doped sample, respectively, while 2.5%- and 5%- Cu-doped BVO exhibit presence of both phases. Scanning electron microscopy (SEM) reveals that sample with monoclinic phase consists of irregular worm-like morphology, while morphology of tetragonal samples was mostly spherical. For 2.5%- and 5%- Cu-doped samples a combination of prismatic and spherical shape morphology was observed. Local structure of material was examined with Raman spectroscopy and the results were in accordance with XRD study where band positions well matched the phase composition. Optical properties were characterized with UV-Vis Diffuse Reflectance Spectroscopy (DRS) and Photoluminescence (PL) spectroscopy. The band gap of monoclinic samples was in range 2.4-2.5 eV, while band gap of sample with tetragonal phase has band gap was between 2.8 and 3 eV. Dual phase samples had two different band gaps that originate from presence of both phases. Based on the results obtained from the PL spectra, monoclinic samples possess better recombination features than tetragonal ones. Photoelectrochemical measurements of BVO samples imply that doping of material improves performance towards oxygen evolution reaction.",
publisher = "Belgrade : Institute of Technical Sciences of SASA",
journal = "20th Young Researchers' Conference Materials Sciences and Engineering : program and the book of abstracts",
title = "The role of copper doping on physicochemical properties of bismuth vanadate",
pages = "30-30",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12430"
}

Jelić, M., Pašti, I., Nedić Vasiljević, B., Erčić, J., Bajuk-Bogdanović, D., Jovanović, Z.,& Jovanović, S.. (2022). The role of copper doping on physicochemical properties of bismuth vanadate. in 20th Young Researchers' Conference Materials Sciences and Engineering : program and the book of abstracts
Belgrade : Institute of Technical Sciences of SASA., 30-30.
https://hdl.handle.net/21.15107/rcub_vinar_12430

Jelić M, Pašti I, Nedić Vasiljević B, Erčić J, Bajuk-Bogdanović D, Jovanović Z, Jovanović S. The role of copper doping on physicochemical properties of bismuth vanadate. in 20th Young Researchers' Conference Materials Sciences and Engineering : program and the book of abstracts. 2022;:30-30.
https://hdl.handle.net/21.15107/rcub_vinar_12430 .

Jelić, Marko, Pašti, Igor, Nedić Vasiljević, Bojana, Erčić, Jelena, Bajuk-Bogdanović, Danica, Jovanović, Zoran, Jovanović, Sonja, "The role of copper doping on physicochemical properties of bismuth vanadate" in 20th Young Researchers' Conference Materials Sciences and Engineering : program and the book of abstracts (2022):30-30,
https://hdl.handle.net/21.15107/rcub_vinar_12430 .

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

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

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

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

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

TY  - CONF
AU  - Jovanović, Sonja
AU  - Grujičić, Marija
AU  - Jelić, Marko
AU  - Vukomanović, Marija
AU  - Spreitzer, Matjaž
AU  - Maček-Kržmanc, Marjeta
AU  - Peddis, Davide
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12297
AB  - In the last two decades, cobalt ferrite (CoFe2O4, CFO) has attracted extensive attention due to its applicability in data storage, catalysis, energy, environment, and in particular, biomedicine. To further extend applicability and improve understanding of fundamental processes, the present work investigates the influence of heteroatoms on physicochemical properties of CFO. Solvothermal method was used for designing a non-agglomerated particles with uniform morpho-structural properties. The physicochemical properties of Zn2+ and Ga3+ substituted CFO nanoparticles were examined (Co(1-x)ZnxFe2O4 and CoGaxFe(2-x)O4; x=0, 0.1, 0.3 and 0.5). In order to isolate the contribution of heteroatoms, the synthesis condition were optimized to allow preparation of nonagglomerated particles with the narrow particle size and shape distribution, including the constant amount of capping agent. The X-ray diffraction (XRD) measurements confirmed the presence of pure cubic spinel phase in all samples, while the transmission electron microscopy (TEM) showed sphere-like nanoparticles with a mean diameter of 6±1 nm. The amount of adsorbed oleic acid on the surface of the nanoparticles, determined by thermogravimetric (TG) analysis, is 22-28 %, which indicates the formation of a complete monolayer of surfactant. The FT-IR analysis substantiated the presence of oleic acid on the surface of the nanoparticles and discovered its covalent bonding to the metal atoms. Substitution of host-atoms was also confirmed by Raman spectroscopy. Magnetic measurements revealed the influence of heteroatoms on saturation magnetization and magnetic anisotropy, showing for all the samples superparamagnetic behavior at room temperature. The substitution of Co2+ and Fe3+ ions with Zn2+ and Ga3+, respectively, leads to the change in chemical composition and cationic distribution of CFO and consequently to variation of its magnetic properties that can be tuned for different applications.
PB  - Belgrade : Vinča Institute of Nuclear Sciences - National Institute of thе Republic of Serbia, University of Belgrade
PB  - Belgrade : Serbian Society for Innovative Materials in Extreme Conditions (SIM-EXTREME)
C3  - IMEC 2022 : 1st Intentational conference on innovativ materials in extreme conditions : Program and Book of abstracts
T1  - Solvothermal synthesis of zinc- and gallium-substituted cobalt ferrite nanoparticles
SP  - 57
EP  - 57
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12297
ER  - 

@conference{
author = "Jovanović, Sonja and Grujičić, Marija and Jelić, Marko and Vukomanović, Marija and Spreitzer, Matjaž and Maček-Kržmanc, Marjeta and Peddis, Davide",
year = "2022",
abstract = "In the last two decades, cobalt ferrite (CoFe2O4, CFO) has attracted extensive attention due to its applicability in data storage, catalysis, energy, environment, and in particular, biomedicine. To further extend applicability and improve understanding of fundamental processes, the present work investigates the influence of heteroatoms on physicochemical properties of CFO. Solvothermal method was used for designing a non-agglomerated particles with uniform morpho-structural properties. The physicochemical properties of Zn2+ and Ga3+ substituted CFO nanoparticles were examined (Co(1-x)ZnxFe2O4 and CoGaxFe(2-x)O4; x=0, 0.1, 0.3 and 0.5). In order to isolate the contribution of heteroatoms, the synthesis condition were optimized to allow preparation of nonagglomerated particles with the narrow particle size and shape distribution, including the constant amount of capping agent. The X-ray diffraction (XRD) measurements confirmed the presence of pure cubic spinel phase in all samples, while the transmission electron microscopy (TEM) showed sphere-like nanoparticles with a mean diameter of 6±1 nm. The amount of adsorbed oleic acid on the surface of the nanoparticles, determined by thermogravimetric (TG) analysis, is 22-28 %, which indicates the formation of a complete monolayer of surfactant. The FT-IR analysis substantiated the presence of oleic acid on the surface of the nanoparticles and discovered its covalent bonding to the metal atoms. Substitution of host-atoms was also confirmed by Raman spectroscopy. Magnetic measurements revealed the influence of heteroatoms on saturation magnetization and magnetic anisotropy, showing for all the samples superparamagnetic behavior at room temperature. The substitution of Co2+ and Fe3+ ions with Zn2+ and Ga3+, respectively, leads to the change in chemical composition and cationic distribution of CFO and consequently to variation of its magnetic properties that can be tuned for different applications.",
publisher = "Belgrade : Vinča Institute of Nuclear Sciences - National Institute of thе Republic of Serbia, University of Belgrade, Belgrade : Serbian Society for Innovative Materials in Extreme Conditions (SIM-EXTREME)",
journal = "IMEC 2022 : 1st Intentational conference on innovativ materials in extreme conditions : Program and Book of abstracts",
title = "Solvothermal synthesis of zinc- and gallium-substituted cobalt ferrite nanoparticles",
pages = "57-57",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12297"
}

Jovanović, S., Grujičić, M., Jelić, M., Vukomanović, M., Spreitzer, M., Maček-Kržmanc, M.,& Peddis, D.. (2022). Solvothermal synthesis of zinc- and gallium-substituted cobalt ferrite nanoparticles. in IMEC 2022 : 1st Intentational conference on innovativ materials in extreme conditions : Program and Book of abstracts
Belgrade : Vinča Institute of Nuclear Sciences - National Institute of thе Republic of Serbia, University of Belgrade., 57-57.
https://hdl.handle.net/21.15107/rcub_vinar_12297

Jovanović S, Grujičić M, Jelić M, Vukomanović M, Spreitzer M, Maček-Kržmanc M, Peddis D. Solvothermal synthesis of zinc- and gallium-substituted cobalt ferrite nanoparticles. in IMEC 2022 : 1st Intentational conference on innovativ materials in extreme conditions : Program and Book of abstracts. 2022;:57-57.
https://hdl.handle.net/21.15107/rcub_vinar_12297 .

Jovanović, Sonja, Grujičić, Marija, Jelić, Marko, Vukomanović, Marija, Spreitzer, Matjaž, Maček-Kržmanc, Marjeta, Peddis, Davide, "Solvothermal synthesis of zinc- and gallium-substituted cobalt ferrite nanoparticles" in IMEC 2022 : 1st Intentational conference on innovativ materials in extreme conditions : Program and Book of abstracts (2022):57-57,
https://hdl.handle.net/21.15107/rcub_vinar_12297 .

TY  - CONF
AU  - Jelić, Marko
AU  - Jovanović, Aleksandar
AU  - Pašti, Igor
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12431
PB  - Russia, Dubna : Joint Institute for Nuclear Research
C3  - AYSS-2021 : The XXV International Scientific Conference of Young Scientists and Specialists
T1  - The role of defects in graphene for removal of toxic compounds
SP  - 896
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12431
ER  - 

@conference{
author = "Jelić, Marko and Jovanović, Aleksandar and Pašti, Igor",
year = "2021",
publisher = "Russia, Dubna : Joint Institute for Nuclear Research",
journal = "AYSS-2021 : The XXV International Scientific Conference of Young Scientists and Specialists",
title = "The role of defects in graphene for removal of toxic compounds",
pages = "896",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12431"
}

Jelić, M., Jovanović, A.,& Pašti, I.. (2021). The role of defects in graphene for removal of toxic compounds. in AYSS-2021 : The XXV International Scientific Conference of Young Scientists and Specialists
Russia, Dubna : Joint Institute for Nuclear Research., 896.
https://hdl.handle.net/21.15107/rcub_vinar_12431

Jelić M, Jovanović A, Pašti I. The role of defects in graphene for removal of toxic compounds. in AYSS-2021 : The XXV International Scientific Conference of Young Scientists and Specialists. 2021;:896.
https://hdl.handle.net/21.15107/rcub_vinar_12431 .

Jelić, Marko, Jovanović, Aleksandar, Pašti, Igor, "The role of defects in graphene for removal of toxic compounds" in AYSS-2021 : The XXV International Scientific Conference of Young Scientists and Specialists (2021):896,
https://hdl.handle.net/21.15107/rcub_vinar_12431 .

TY  - CONF
AU  - Jelić, Marko
AU  - Jovanović, Aleksandar
AU  - Pašti, Igor
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12432
AB  - Understanding the adsorption of pesticides and toxic gases on graphene has high importance for their degradation and removal. In the present study, the adsorption of different models of organophosphate pesticides (OPH3, OPF3, SPH3 and SPF3) and inorganic molecules (H2O and NH3) on perfect and defected graphene was examined by using the DFT method. Inspected systems were pristine, single-vacancy (SV), Stone-Wales (SW) and epoxy graphene. Pristine graphene exhibits great adsorption affinity towards OPH3 molecule, while it shows insignificant adsorption towards other examined species. The introduction of defects influences the reactivity of these molecules on the graphene surface. Among them, SV graphene showed the highest adsorption affinity for H2O, NH3, OPH3 and OPF3, while SW graphene showed the most suitable adsorption properties towards SPH3 and SPF3 molecules. The interaction between molecules and graphene was mostly physisorption except in the case of epoxy graphene where degradation of organophosphates occurred (Figure 1). This study suggests that graphene can be potentially used to remove environmental pollutants and pesticides' chemical degradation, while the surface chemistry of graphene should be carefully tailored for this application.
PB  - Belgrade : Institute of Technical Sciences of SASA
C3  - 19th Young Researchers’ Conference - Materials Science and Engineering : Program and the Book of Abstracts
T1  - The role of defects in graphene for removal of toxic compounds – Theoretical analysis
SP  - 44
EP  - 44
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12432
ER  - 

@conference{
author = "Jelić, Marko and Jovanović, Aleksandar and Pašti, Igor",
year = "2021",
abstract = "Understanding the adsorption of pesticides and toxic gases on graphene has high importance for their degradation and removal. In the present study, the adsorption of different models of organophosphate pesticides (OPH3, OPF3, SPH3 and SPF3) and inorganic molecules (H2O and NH3) on perfect and defected graphene was examined by using the DFT method. Inspected systems were pristine, single-vacancy (SV), Stone-Wales (SW) and epoxy graphene. Pristine graphene exhibits great adsorption affinity towards OPH3 molecule, while it shows insignificant adsorption towards other examined species. The introduction of defects influences the reactivity of these molecules on the graphene surface. Among them, SV graphene showed the highest adsorption affinity for H2O, NH3, OPH3 and OPF3, while SW graphene showed the most suitable adsorption properties towards SPH3 and SPF3 molecules. The interaction between molecules and graphene was mostly physisorption except in the case of epoxy graphene where degradation of organophosphates occurred (Figure 1). This study suggests that graphene can be potentially used to remove environmental pollutants and pesticides' chemical degradation, while the surface chemistry of graphene should be carefully tailored for this application.",
publisher = "Belgrade : Institute of Technical Sciences of SASA",
journal = "19th Young Researchers’ Conference - Materials Science and Engineering : Program and the Book of Abstracts",
title = "The role of defects in graphene for removal of toxic compounds – Theoretical analysis",
pages = "44-44",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12432"
}

Jelić, M., Jovanović, A.,& Pašti, I.. (2021). The role of defects in graphene for removal of toxic compounds – Theoretical analysis. in 19th Young Researchers’ Conference - Materials Science and Engineering : Program and the Book of Abstracts
Belgrade : Institute of Technical Sciences of SASA., 44-44.
https://hdl.handle.net/21.15107/rcub_vinar_12432

Jelić M, Jovanović A, Pašti I. The role of defects in graphene for removal of toxic compounds – Theoretical analysis. in 19th Young Researchers’ Conference - Materials Science and Engineering : Program and the Book of Abstracts. 2021;:44-44.
https://hdl.handle.net/21.15107/rcub_vinar_12432 .

Jelić, Marko, Jovanović, Aleksandar, Pašti, Igor, "The role of defects in graphene for removal of toxic compounds – Theoretical analysis" in 19th Young Researchers’ Conference - Materials Science and Engineering : Program and the Book of Abstracts (2021):44-44,
https://hdl.handle.net/21.15107/rcub_vinar_12432 .