TY  - JOUR
AU  - Perović, Ivana
AU  - Mitrović, Stefan
AU  - Brković, Snežana
AU  - Zdolšek, Nikola
AU  - Seović, Mina
AU  - Tasić, Gvozden
AU  - Pašti, Igor
PY  - 2024
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/13130
AB  - This study investigates the impact of Co–Mo–W ionic activators on the hydrogen evolution reaction (HER) in alkaline electrolysis, comparing their performance to Co–Mo and Co–W systems. The research focuses on analyzing the catalytic efficiency of these activators under varying conditions, including temperature and current density variations. Key findings reveal that the Co–Mo–W activator enhances HER performance, with a significant 17% reduction in energy consumption compared to plain electrolyte, mirroring the efficiency of Co–Mo. Tafel analysis gave the insight of the reaction mechanism for HER for all activators, with Co–Mo–W exhibiting a lower Tafel slope, suggesting improved catalytic activity. Structural and morphological analysis of electrode coatings shows a highly developed surface for Co–Mo–W, with a roughness factor similar to or slightly lower than the most developed Co–Mo coating. The study concludes that the synergistic combination of Co, Mo, and W in a tri-component ionic activator offers a promising catalytic activity for HER, outperforming bi-component systems and presenting significant potential for industrial-scale alkaline water electrolysis applications.
T2  - International Journal of Hydrogen Energy
T1  - On the use of WO42− as a third component to Co–Mo ionic activator for HER in alkaline water electrolysis
VL  - 64
SP  - 196
EP  - 204
DO  - 10.1016/j.ijhydene.2024.03.267
ER  - 

@article{
author = "Perović, Ivana and Mitrović, Stefan and Brković, Snežana and Zdolšek, Nikola and Seović, Mina and Tasić, Gvozden and Pašti, Igor",
year = "2024",
abstract = "This study investigates the impact of Co–Mo–W ionic activators on the hydrogen evolution reaction (HER) in alkaline electrolysis, comparing their performance to Co–Mo and Co–W systems. The research focuses on analyzing the catalytic efficiency of these activators under varying conditions, including temperature and current density variations. Key findings reveal that the Co–Mo–W activator enhances HER performance, with a significant 17% reduction in energy consumption compared to plain electrolyte, mirroring the efficiency of Co–Mo. Tafel analysis gave the insight of the reaction mechanism for HER for all activators, with Co–Mo–W exhibiting a lower Tafel slope, suggesting improved catalytic activity. Structural and morphological analysis of electrode coatings shows a highly developed surface for Co–Mo–W, with a roughness factor similar to or slightly lower than the most developed Co–Mo coating. The study concludes that the synergistic combination of Co, Mo, and W in a tri-component ionic activator offers a promising catalytic activity for HER, outperforming bi-component systems and presenting significant potential for industrial-scale alkaline water electrolysis applications.",
journal = "International Journal of Hydrogen Energy",
title = "On the use of WO42− as a third component to Co–Mo ionic activator for HER in alkaline water electrolysis",
volume = "64",
pages = "196-204",
doi = "10.1016/j.ijhydene.2024.03.267"
}

Perović, I., Mitrović, S., Brković, S., Zdolšek, N., Seović, M., Tasić, G.,& Pašti, I.. (2024). On the use of WO42− as a third component to Co–Mo ionic activator for HER in alkaline water electrolysis. in International Journal of Hydrogen Energy, 64, 196-204.
https://doi.org/10.1016/j.ijhydene.2024.03.267

Perović I, Mitrović S, Brković S, Zdolšek N, Seović M, Tasić G, Pašti I. On the use of WO42− as a third component to Co–Mo ionic activator for HER in alkaline water electrolysis. in International Journal of Hydrogen Energy. 2024;64:196-204.
doi:10.1016/j.ijhydene.2024.03.267 .

Perović, Ivana, Mitrović, Stefan, Brković, Snežana, Zdolšek, Nikola, Seović, Mina, Tasić, Gvozden, Pašti, Igor, "On the use of WO42− as a third component to Co–Mo ionic activator for HER in alkaline water electrolysis" in International Journal of Hydrogen Energy, 64 (2024):196-204,
https://doi.org/10.1016/j.ijhydene.2024.03.267 . .

TY  - JOUR
AU  - Mitrović, Stefan
AU  - Brković, Snežana
AU  - Živković, Sanja
AU  - Zdolšek, Nikola
AU  - Seović, Mina
AU  - Georgijević, Jelena M.
AU  - Perović, Ivana
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11873
AB  - Against the background of escalating global electronic waste (e-waste) and its rich reservoir of elements, this research addresses the exploitation of precious metals from discarded CPUs for potential applications in hydrogen production. The study systematically explores the influence of varied CPU sample preparation techniques on the formation of an electrode’s catalytic layer and the kinetics of the hydrogen evolution reaction (HER) in alkaline media. Four distinct e-waste samples, each subjected to different preparation protocols, were employed as sources in electrodeposition baths. The electrocatalytic efficiency of the resulting electrodeposited cathodes was evaluated, with the AR-CPU-1.4M electrode demonstrating superior properties. Morphological insights from SEM, coupled with elemental data from EDS and ICP analyses, revealed the intricate relationship between sample preparation, electrode characteristics, and HER kinetics. Notably, gold deposits and a prominent copper concentration emerged as defining attributes of our findings. This research underscores the potential of e-waste-derived metals, particularly in hydrogen production, providing an avenue for sustainable metal recovery and utilization.
T2  - Materials
T1  - From E-Waste to Hydrogen Evolution: Harnessing Recycled Precious Metals for Catalytic Efficiency in Hydrogen Evolution Reactions
VL  - 16
IS  - 20
SP  - 6795
DO  - 10.3390/ma16206795
ER  - 

@article{
author = "Mitrović, Stefan and Brković, Snežana and Živković, Sanja and Zdolšek, Nikola and Seović, Mina and Georgijević, Jelena M. and Perović, Ivana",
year = "2023",
abstract = "Against the background of escalating global electronic waste (e-waste) and its rich reservoir of elements, this research addresses the exploitation of precious metals from discarded CPUs for potential applications in hydrogen production. The study systematically explores the influence of varied CPU sample preparation techniques on the formation of an electrode’s catalytic layer and the kinetics of the hydrogen evolution reaction (HER) in alkaline media. Four distinct e-waste samples, each subjected to different preparation protocols, were employed as sources in electrodeposition baths. The electrocatalytic efficiency of the resulting electrodeposited cathodes was evaluated, with the AR-CPU-1.4M electrode demonstrating superior properties. Morphological insights from SEM, coupled with elemental data from EDS and ICP analyses, revealed the intricate relationship between sample preparation, electrode characteristics, and HER kinetics. Notably, gold deposits and a prominent copper concentration emerged as defining attributes of our findings. This research underscores the potential of e-waste-derived metals, particularly in hydrogen production, providing an avenue for sustainable metal recovery and utilization.",
journal = "Materials",
title = "From E-Waste to Hydrogen Evolution: Harnessing Recycled Precious Metals for Catalytic Efficiency in Hydrogen Evolution Reactions",
volume = "16",
number = "20",
pages = "6795",
doi = "10.3390/ma16206795"
}

Mitrović, S., Brković, S., Živković, S., Zdolšek, N., Seović, M., Georgijević, J. M.,& Perović, I.. (2023). From E-Waste to Hydrogen Evolution: Harnessing Recycled Precious Metals for Catalytic Efficiency in Hydrogen Evolution Reactions. in Materials, 16(20), 6795.
https://doi.org/10.3390/ma16206795

Mitrović S, Brković S, Živković S, Zdolšek N, Seović M, Georgijević JM, Perović I. From E-Waste to Hydrogen Evolution: Harnessing Recycled Precious Metals for Catalytic Efficiency in Hydrogen Evolution Reactions. in Materials. 2023;16(20):6795.
doi:10.3390/ma16206795 .

Mitrović, Stefan, Brković, Snežana, Živković, Sanja, Zdolšek, Nikola, Seović, Mina, Georgijević, Jelena M., Perović, Ivana, "From E-Waste to Hydrogen Evolution: Harnessing Recycled Precious Metals for Catalytic Efficiency in Hydrogen Evolution Reactions" in Materials, 16, no. 20 (2023):6795,
https://doi.org/10.3390/ma16206795 . .

TY  - CONF
AU  - Perović, Ivana
AU  - Mitrović, Stefan
AU  - Brković, Snežana
AU  - Zdolšek, Nikola
AU  - Seović, Mina
AU  - Tasić, Gvozden
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12910
PB  - Zagreb : [s.n.]
C3  - RH2EC : May 24-26, 2023, Zagreb, Croatia : 2nd Renewable hydrogen energy convention
T1  - Co-Mo in situ ionic activators for HER - energy consumption and reaction mechanism
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12910
ER  - 

@conference{
author = "Perović, Ivana and Mitrović, Stefan and Brković, Snežana and Zdolšek, Nikola and Seović, Mina and Tasić, Gvozden",
year = "2023",
publisher = "Zagreb : [s.n.]",
journal = "RH2EC : May 24-26, 2023, Zagreb, Croatia : 2nd Renewable hydrogen energy convention",
title = "Co-Mo in situ ionic activators for HER - energy consumption and reaction mechanism",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12910"
}

Perović, I., Mitrović, S., Brković, S., Zdolšek, N., Seović, M.,& Tasić, G.. (2023). Co-Mo in situ ionic activators for HER - energy consumption and reaction mechanism. in RH2EC : May 24-26, 2023, Zagreb, Croatia : 2nd Renewable hydrogen energy convention
Zagreb : [s.n.]..
https://hdl.handle.net/21.15107/rcub_vinar_12910

Perović I, Mitrović S, Brković S, Zdolšek N, Seović M, Tasić G. Co-Mo in situ ionic activators for HER - energy consumption and reaction mechanism. in RH2EC : May 24-26, 2023, Zagreb, Croatia : 2nd Renewable hydrogen energy convention. 2023;.
https://hdl.handle.net/21.15107/rcub_vinar_12910 .

Perović, Ivana, Mitrović, Stefan, Brković, Snežana, Zdolšek, Nikola, Seović, Mina, Tasić, Gvozden, "Co-Mo in situ ionic activators for HER - energy consumption and reaction mechanism" in RH2EC : May 24-26, 2023, Zagreb, Croatia : 2nd Renewable hydrogen energy convention (2023),
https://hdl.handle.net/21.15107/rcub_vinar_12910 .

TY  - JOUR
AU  - Seović, Mina
AU  - Perović, Ivana
AU  - Brković, Snežana
AU  - Zdolšek, Nikola
AU  - Mitrović, Stefan
AU  - Georgijević, Jelena M.
AU  - Tasić, Gvozden
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12288
AB  - The escalating concerns over climate changes and environmental disturbances resulting from anthropogenic influence have propelled the scientific community to seek efficient models for the energy transition. Hydrogen emerges as a promising energy carrier with the potential to replace fossil fuels and mitigate global warming, a pressing threat to life on Earth. This research paper primarily focuses on the electrolytic production of hydrogen, deemed the environmentally acceptable method for this purpose. The central emphasis lies in enhancing the electrodes utilized in this process to elevate the significance of the Hydrogen Evolution Reaction (HER). By improving HER, a pivotal step in the hydrogen production process, the trajectory of civilization's evolution can be positively influenced.
AB  - Sve veća zabrinutost zbog klimatskih promena i ekoloških poremećaja koji su rezultat antropogenog uticaja naterali su naučnu zajednicu da traži efikasne modele za energetsku tranziciju. Vodonik se pojavljuje kao perspektivan nosilac energije sa potencijalom da zameni fosilna goriva i ublaži globalno zagrevanje, goruću pretnju životu na Zemlji. Ovaj istraživački rad se prvenstveno fokusira na elektrolitičku proizvodnju vodonika, koja se smatra ekološki prihvatljivom metodom za ovu svrhu. Centralni naglasak je na poboljšanju elektroda koje se koriste u ovom procesu kako bi se podigao značaj reakcije evolucije vodonika (HER). Poboljšanjem HER, ključnog koraka u procesu proizvodnje vodonika, može se pozitivno uticati na putanju evolucije civilizacije.
T2  - Ecologica
T1  - Energy Transition and Hydrogen Evolution
T1  - Energetska tranzicija i vodonična evolucija
VL  - 30
IS  - 112
SP  - 563
EP  - 568
DO  - 10.18485/ecologica.2023.30.112.8
ER  - 

@article{
author = "Seović, Mina and Perović, Ivana and Brković, Snežana and Zdolšek, Nikola and Mitrović, Stefan and Georgijević, Jelena M. and Tasić, Gvozden",
year = "2023",
abstract = "The escalating concerns over climate changes and environmental disturbances resulting from anthropogenic influence have propelled the scientific community to seek efficient models for the energy transition. Hydrogen emerges as a promising energy carrier with the potential to replace fossil fuels and mitigate global warming, a pressing threat to life on Earth. This research paper primarily focuses on the electrolytic production of hydrogen, deemed the environmentally acceptable method for this purpose. The central emphasis lies in enhancing the electrodes utilized in this process to elevate the significance of the Hydrogen Evolution Reaction (HER). By improving HER, a pivotal step in the hydrogen production process, the trajectory of civilization's evolution can be positively influenced., Sve veća zabrinutost zbog klimatskih promena i ekoloških poremećaja koji su rezultat antropogenog uticaja naterali su naučnu zajednicu da traži efikasne modele za energetsku tranziciju. Vodonik se pojavljuje kao perspektivan nosilac energije sa potencijalom da zameni fosilna goriva i ublaži globalno zagrevanje, goruću pretnju životu na Zemlji. Ovaj istraživački rad se prvenstveno fokusira na elektrolitičku proizvodnju vodonika, koja se smatra ekološki prihvatljivom metodom za ovu svrhu. Centralni naglasak je na poboljšanju elektroda koje se koriste u ovom procesu kako bi se podigao značaj reakcije evolucije vodonika (HER). Poboljšanjem HER, ključnog koraka u procesu proizvodnje vodonika, može se pozitivno uticati na putanju evolucije civilizacije.",
journal = "Ecologica",
title = "Energy Transition and Hydrogen Evolution, Energetska tranzicija i vodonična evolucija",
volume = "30",
number = "112",
pages = "563-568",
doi = "10.18485/ecologica.2023.30.112.8"
}

Seović, M., Perović, I., Brković, S., Zdolšek, N., Mitrović, S., Georgijević, J. M.,& Tasić, G.. (2023). Energy Transition and Hydrogen Evolution. in Ecologica, 30(112), 563-568.
https://doi.org/10.18485/ecologica.2023.30.112.8

Seović M, Perović I, Brković S, Zdolšek N, Mitrović S, Georgijević JM, Tasić G. Energy Transition and Hydrogen Evolution. in Ecologica. 2023;30(112):563-568.
doi:10.18485/ecologica.2023.30.112.8 .

Seović, Mina, Perović, Ivana, Brković, Snežana, Zdolšek, Nikola, Mitrović, Stefan, Georgijević, Jelena M., Tasić, Gvozden, "Energy Transition and Hydrogen Evolution" in Ecologica, 30, no. 112 (2023):563-568,
https://doi.org/10.18485/ecologica.2023.30.112.8 . .

TY  - JOUR
AU  - Seović, Mina
AU  - Milovanović, Dubravka
AU  - Tasić, Gvozden S.
AU  - Zdolšek, Nikola
AU  - Mitrović, Stefan
AU  - Brković, Snežana M.
AU  - Perović, Ivana
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11005
AB  - The dominant problem that needs to be solved today is the issue of energy sources and how to use them, which must be ecological and sustainable - in a word, green. As the best candidate for a global solution to this problem, hydrogen produced electrolytically stood out as a green fuel with no carbon footprint. However, for a hydrogen-based economy to have a realistic and sustainable perspective in the future, it largely depends on its efficient and economically viable production that would meet the market's needs. Special attention in this paper is devoted to the influence of laser radiation on the possibility of improving the process of alkaline electrolysis for obtaining hydrogen, as well as on increasing the amount of separated hydrogen when the electrolytic cell is directly irradiated with a laser beam during the electrolysis process itself. After the experiments, it was determined that the application of direct irradiation of the electrolyte with a green laser at 532 nm wavelength significantly increases the amount of hydrogen produced and reduces the voltage of the electrolytic process, which is directly related to the increase in the energy efficiency of the overall hydrogen production process.
AB  - Dominantan problem koji danas treba rešiti je pitanje energenata i načina njihove upotrebe koji moraju biti ekološki i održivi – jednom rečju zeleni. Kao najbolji kandidat za globalno rešenje ovog problema istakao se vodonik proizveden elektolitičkim putem, kao zeleno gorivo bez ugljeničnih otisaka. Da bi ekonomija zasnovana na vodoniku imala realnu i održivu perspektivu u budućnosti, u velikoj meri zavisi od njegove efikasne i ekonomski podobne proizvodnje koja bi zadovoljila potrebe tržišta. Posebna pažnja u ovom radu posvećena je uticaju laserskog zračenja na mogućnost poboljšanja procesa alkalne elektrolize za dobijanje vodonika, kao i na povećanje količine izdvojenog vodonika pri direktnom ozračivanju elektrolitičke ćelije laserskim snopom tokom samog procesa elektrolize. Nakon izvršenih eksperimenata utvrđeno je da se primenom direktnog ozračivanja elektrolita zelenim laserom talasne dužine 532 nm u značajnoj meri povećava količina proizvedenog vodonika i smanjuje napon elektrolitičkog procesa, što je u direktnoj vezi sa povećanjem energetske efikasnosti ukupnog procesa dobijanja vodonika.
T2  - Ecologica
T1  - On the Green Path of Innovation — Hydrogen from Laser-Assisted Alkaline Electrolysis
T1  - Na zelenom putu inovacija – vodonik iz laserski potpomognute alkalne elektrolize
VL  - 29
IS  - 107
SP  - 359
EP  - 363
DO  - 10.18485/ecologica.2022.29.107.9
ER  - 

@article{
author = "Seović, Mina and Milovanović, Dubravka and Tasić, Gvozden S. and Zdolšek, Nikola and Mitrović, Stefan and Brković, Snežana M. and Perović, Ivana",
year = "2022",
abstract = "The dominant problem that needs to be solved today is the issue of energy sources and how to use them, which must be ecological and sustainable - in a word, green. As the best candidate for a global solution to this problem, hydrogen produced electrolytically stood out as a green fuel with no carbon footprint. However, for a hydrogen-based economy to have a realistic and sustainable perspective in the future, it largely depends on its efficient and economically viable production that would meet the market's needs. Special attention in this paper is devoted to the influence of laser radiation on the possibility of improving the process of alkaline electrolysis for obtaining hydrogen, as well as on increasing the amount of separated hydrogen when the electrolytic cell is directly irradiated with a laser beam during the electrolysis process itself. After the experiments, it was determined that the application of direct irradiation of the electrolyte with a green laser at 532 nm wavelength significantly increases the amount of hydrogen produced and reduces the voltage of the electrolytic process, which is directly related to the increase in the energy efficiency of the overall hydrogen production process., Dominantan problem koji danas treba rešiti je pitanje energenata i načina njihove upotrebe koji moraju biti ekološki i održivi – jednom rečju zeleni. Kao najbolji kandidat za globalno rešenje ovog problema istakao se vodonik proizveden elektolitičkim putem, kao zeleno gorivo bez ugljeničnih otisaka. Da bi ekonomija zasnovana na vodoniku imala realnu i održivu perspektivu u budućnosti, u velikoj meri zavisi od njegove efikasne i ekonomski podobne proizvodnje koja bi zadovoljila potrebe tržišta. Posebna pažnja u ovom radu posvećena je uticaju laserskog zračenja na mogućnost poboljšanja procesa alkalne elektrolize za dobijanje vodonika, kao i na povećanje količine izdvojenog vodonika pri direktnom ozračivanju elektrolitičke ćelije laserskim snopom tokom samog procesa elektrolize. Nakon izvršenih eksperimenata utvrđeno je da se primenom direktnog ozračivanja elektrolita zelenim laserom talasne dužine 532 nm u značajnoj meri povećava količina proizvedenog vodonika i smanjuje napon elektrolitičkog procesa, što je u direktnoj vezi sa povećanjem energetske efikasnosti ukupnog procesa dobijanja vodonika.",
journal = "Ecologica",
title = "On the Green Path of Innovation — Hydrogen from Laser-Assisted Alkaline Electrolysis, Na zelenom putu inovacija – vodonik iz laserski potpomognute alkalne elektrolize",
volume = "29",
number = "107",
pages = "359-363",
doi = "10.18485/ecologica.2022.29.107.9"
}

Seović, M., Milovanović, D., Tasić, G. S., Zdolšek, N., Mitrović, S., Brković, S. M.,& Perović, I.. (2022). On the Green Path of Innovation — Hydrogen from Laser-Assisted Alkaline Electrolysis. in Ecologica, 29(107), 359-363.
https://doi.org/10.18485/ecologica.2022.29.107.9

Seović M, Milovanović D, Tasić GS, Zdolšek N, Mitrović S, Brković SM, Perović I. On the Green Path of Innovation — Hydrogen from Laser-Assisted Alkaline Electrolysis. in Ecologica. 2022;29(107):359-363.
doi:10.18485/ecologica.2022.29.107.9 .

Seović, Mina, Milovanović, Dubravka, Tasić, Gvozden S., Zdolšek, Nikola, Mitrović, Stefan, Brković, Snežana M., Perović, Ivana, "On the Green Path of Innovation — Hydrogen from Laser-Assisted Alkaline Electrolysis" in Ecologica, 29, no. 107 (2022):359-363,
https://doi.org/10.18485/ecologica.2022.29.107.9 . .