TY  - JOUR
AU  - Gojgić, Jelena D.
AU  - Petričević, Aleksandar M.
AU  - Krstajić Pajić, Mila N.
AU  - Jović, Vladimir D.
PY  - 2024
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7409
AB  - The example of the procedure for the correct determination of the parameters of hydrogen evolution reaction (HER), the exchange current density (jo) and relaxation time (τo) for intermediate (adsorbed hydrogen, Hads) adsorption at modified porous Ni-based electrode are presented in this work. Such a procedure is applicable for the HER at all electrode materials. The value of jo was obtained from the intercept at η = 0 mV from the η vs. log (Rct-1) dependence (η-overpotential), while the value of τo was obtained from the intercept at η = 0 mV from the logτ vs. η dependence. It was shown that for the correct determination of jo and τo, it is necessary to correct applied η for the jRs drop, by recording current density (j) for applied η and correcting it for jRs.
AB  - Na primeru izdvajanja vodonika na Ni-Sn/Ni pena 800 elektrodi u ovom radu je prikazana procedura korektnog određivanja parametara ove reakcije, a to su: gustina struje izmene (jo) i relaksaciono vreme adsorpcije intermedijara () (Hads). Vrednost jo je određena iz odsečka za  = 0 mV zavisnosti  vs. log(Rct-1 ) ( - prenapetost), dok je vrednost o određena iz odsečka za  = 0 mV zavisnosti log vs. . Pokazano je da je za korektno određivanje ovih parametara neophodno korigovati gustinu struje pri svakoj zadatoj prenapetosti za vrednost omskog pada napona jRs.
PB  - Inženjersko društvo za koroziju
T2  - Zaštita materijala
T1  - Correct determination of the hydrogen evolution reaction parameters at Ni foam electrode modified by electrodeposited Ni-Sn alloy layer
T1  - Procedura korektnog određivanja parametara reakcije izdvajanja vodonika na elektrodi od Ni pene modifikovane elektrohemijski istaloženom Ni-Sn legurom
EP  - 10
IS  - 1
SP  - 3
VL  - 65
DO  - 10.62638/zasmat1039
ER  - 

@article{
author = "Gojgić, Jelena D. and Petričević, Aleksandar M. and Krstajić Pajić, Mila N. and Jović, Vladimir D.",
year = "2024",
abstract = "The example of the procedure for the correct determination of the parameters of hydrogen evolution reaction (HER), the exchange current density (jo) and relaxation time (τo) for intermediate (adsorbed hydrogen, Hads) adsorption at modified porous Ni-based electrode are presented in this work. Such a procedure is applicable for the HER at all electrode materials. The value of jo was obtained from the intercept at η = 0 mV from the η vs. log (Rct-1) dependence (η-overpotential), while the value of τo was obtained from the intercept at η = 0 mV from the logτ vs. η dependence. It was shown that for the correct determination of jo and τo, it is necessary to correct applied η for the jRs drop, by recording current density (j) for applied η and correcting it for jRs., Na primeru izdvajanja vodonika na Ni-Sn/Ni pena 800 elektrodi u ovom radu je prikazana procedura korektnog određivanja parametara ove reakcije, a to su: gustina struje izmene (jo) i relaksaciono vreme adsorpcije intermedijara () (Hads). Vrednost jo je određena iz odsečka za  = 0 mV zavisnosti  vs. log(Rct-1 ) ( - prenapetost), dok je vrednost o određena iz odsečka za  = 0 mV zavisnosti log vs. . Pokazano je da je za korektno određivanje ovih parametara neophodno korigovati gustinu struje pri svakoj zadatoj prenapetosti za vrednost omskog pada napona jRs.",
publisher = "Inženjersko društvo za koroziju",
journal = "Zaštita materijala",
title = "Correct determination of the hydrogen evolution reaction parameters at Ni foam electrode modified by electrodeposited Ni-Sn alloy layer, Procedura korektnog određivanja parametara reakcije izdvajanja vodonika na elektrodi od Ni pene modifikovane elektrohemijski istaloženom Ni-Sn legurom",
pages = "10-3",
number = "1",
volume = "65",
doi = "10.62638/zasmat1039"
}

Gojgić, J. D., Petričević, A. M., Krstajić Pajić, M. N.,& Jović, V. D.. (2024). Correct determination of the hydrogen evolution reaction parameters at Ni foam electrode modified by electrodeposited Ni-Sn alloy layer. in Zaštita materijala
Inženjersko društvo za koroziju., 65(1), 3-10.
https://doi.org/10.62638/zasmat1039

Gojgić JD, Petričević AM, Krstajić Pajić MN, Jović VD. Correct determination of the hydrogen evolution reaction parameters at Ni foam electrode modified by electrodeposited Ni-Sn alloy layer. in Zaštita materijala. 2024;65(1):3-10.
doi:10.62638/zasmat1039 .

Gojgić, Jelena D., Petričević, Aleksandar M., Krstajić Pajić, Mila N., Jović, Vladimir D., "Correct determination of the hydrogen evolution reaction parameters at Ni foam electrode modified by electrodeposited Ni-Sn alloy layer" in Zaštita materijala, 65, no. 1 (2024):3-10,
https://doi.org/10.62638/zasmat1039 . .

TY  - JOUR
AU  - Gojgić, Jelena D.
AU  - Petričević, Aleksandar M.
AU  - Rauscher, Thomas
AU  - Bernäcker, Christian I.
AU  - Weißgärber, Thomas
AU  - Pavko, Luka
AU  - Vasilić, Rastko
AU  - Krstajić Pajić, Mila N.
AU  - Jović, Vladimir D.
PY  - 2023
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6577
AB  - The hydrogen evolution reaction (HER) was investigated in 1.0 M KOH at 25 °C at Ni foams with different pore sizes (450–1200 µm), and at the Ni-Sn/Ni foam electrodes, where Ni-Sn alloys were electrodeposited from the pyrophosphate-glycine bath using controlled potential coulometry (CPC) technique. The cross-section analysis revealed that rough Ni-Sn alloy covers complete available inner and outer foam surface, while investigated coating composition varied from 62 to 80 at% Ni (20–38 at% Sn). Comparing the HER polarization curves, the overpotential at j = −200 mA cm−2 was 427 mV lower for Ni-Sn samples than for bare Ni foams, while Tafel slopes changed from − 120 mV dec−1 at bare Ni foams to − 50 mV dec−1 for Ni-Sn/Ni foam samples. The lowest overpotential at − 100 mA cm−2 achieved is as low as − 77 mV. These cathodes could be promising 3D materials for industrial water electrolysis in zero-gap membrane flow cells.
PB  - Elsevier B.V.
T2  - Applied Catalysis A: General
T1  - Hydrogen evolution at Ni foam electrodes and Ni-Sn coated Ni foam electrodes
SP  - 119312
VL  - 663
DO  - 10.1016/j.apcata.2023.119312
ER  - 

@article{
author = "Gojgić, Jelena D. and Petričević, Aleksandar M. and Rauscher, Thomas and Bernäcker, Christian I. and Weißgärber, Thomas and Pavko, Luka and Vasilić, Rastko and Krstajić Pajić, Mila N. and Jović, Vladimir D.",
year = "2023",
abstract = "The hydrogen evolution reaction (HER) was investigated in 1.0 M KOH at 25 °C at Ni foams with different pore sizes (450–1200 µm), and at the Ni-Sn/Ni foam electrodes, where Ni-Sn alloys were electrodeposited from the pyrophosphate-glycine bath using controlled potential coulometry (CPC) technique. The cross-section analysis revealed that rough Ni-Sn alloy covers complete available inner and outer foam surface, while investigated coating composition varied from 62 to 80 at% Ni (20–38 at% Sn). Comparing the HER polarization curves, the overpotential at j = −200 mA cm−2 was 427 mV lower for Ni-Sn samples than for bare Ni foams, while Tafel slopes changed from − 120 mV dec−1 at bare Ni foams to − 50 mV dec−1 for Ni-Sn/Ni foam samples. The lowest overpotential at − 100 mA cm−2 achieved is as low as − 77 mV. These cathodes could be promising 3D materials for industrial water electrolysis in zero-gap membrane flow cells.",
publisher = "Elsevier B.V.",
journal = "Applied Catalysis A: General",
title = "Hydrogen evolution at Ni foam electrodes and Ni-Sn coated Ni foam electrodes",
pages = "119312",
volume = "663",
doi = "10.1016/j.apcata.2023.119312"
}

Gojgić, J. D., Petričević, A. M., Rauscher, T., Bernäcker, C. I., Weißgärber, T., Pavko, L., Vasilić, R., Krstajić Pajić, M. N.,& Jović, V. D.. (2023). Hydrogen evolution at Ni foam electrodes and Ni-Sn coated Ni foam electrodes. in Applied Catalysis A: General
Elsevier B.V.., 663, 119312.
https://doi.org/10.1016/j.apcata.2023.119312

Gojgić JD, Petričević AM, Rauscher T, Bernäcker CI, Weißgärber T, Pavko L, Vasilić R, Krstajić Pajić MN, Jović VD. Hydrogen evolution at Ni foam electrodes and Ni-Sn coated Ni foam electrodes. in Applied Catalysis A: General. 2023;663:119312.
doi:10.1016/j.apcata.2023.119312 .

Gojgić, Jelena D., Petričević, Aleksandar M., Rauscher, Thomas, Bernäcker, Christian I., Weißgärber, Thomas, Pavko, Luka, Vasilić, Rastko, Krstajić Pajić, Mila N., Jović, Vladimir D., "Hydrogen evolution at Ni foam electrodes and Ni-Sn coated Ni foam electrodes" in Applied Catalysis A: General, 663 (2023):119312,
https://doi.org/10.1016/j.apcata.2023.119312 . .

TY  - JOUR
AU  - Gojgić, Jelena
AU  - Petrović, Miloš
AU  - Jugović, Branimir
AU  - Jokić, Bojan
AU  - Grgur, Branimir
AU  - Gvozdenović, Milica
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5297
AB  - Polyaniline (PANI), due to its highly reversible electrochemistry with superior energy storage and delivery characteristics, is considered as an electrode material in batteries, capacitors, and hybrid systems. We used a facile electrochemical synthesis for the formation of the PANI electrode using galvanostatic polymerization of aniline on the graphite electrode at the current density of 2.0 mA cm−2 from the aqueous electrolyte containing 0.25 mol dm−3 aniline and 1.0 mol dm−3 H2SO4. Electrochemical and electrical characterization suggested excellent energy storage features of the PANI electrode in a three-electrode system with specific energy up to 53 Wh kg−1 and specific power up to 7600 W kg−1. After 2000 successive charge/discharge cycles at 9.5 Ag−1, the PANI electrode retained 95% of the initial capacity, with practically unaltered Coulombic efficiency of nearly 98%, providing a good base for future studies and practical applications.
PB  - MDPI
T2  - Polymers
T1  - Electrochemical and Electrical Performances of High Energy Storage Polyaniline Electrode with Supercapattery Behavior
IS  - 24
SP  - 5365
VL  - 14
DO  - 10.3390/polym14245365
ER  - 

@article{
author = "Gojgić, Jelena and Petrović, Miloš and Jugović, Branimir and Jokić, Bojan and Grgur, Branimir and Gvozdenović, Milica",
year = "2022",
abstract = "Polyaniline (PANI), due to its highly reversible electrochemistry with superior energy storage and delivery characteristics, is considered as an electrode material in batteries, capacitors, and hybrid systems. We used a facile electrochemical synthesis for the formation of the PANI electrode using galvanostatic polymerization of aniline on the graphite electrode at the current density of 2.0 mA cm−2 from the aqueous electrolyte containing 0.25 mol dm−3 aniline and 1.0 mol dm−3 H2SO4. Electrochemical and electrical characterization suggested excellent energy storage features of the PANI electrode in a three-electrode system with specific energy up to 53 Wh kg−1 and specific power up to 7600 W kg−1. After 2000 successive charge/discharge cycles at 9.5 Ag−1, the PANI electrode retained 95% of the initial capacity, with practically unaltered Coulombic efficiency of nearly 98%, providing a good base for future studies and practical applications.",
publisher = "MDPI",
journal = "Polymers",
title = "Electrochemical and Electrical Performances of High Energy Storage Polyaniline Electrode with Supercapattery Behavior",
number = "24",
pages = "5365",
volume = "14",
doi = "10.3390/polym14245365"
}

Gojgić, J., Petrović, M., Jugović, B., Jokić, B., Grgur, B.,& Gvozdenović, M.. (2022). Electrochemical and Electrical Performances of High Energy Storage Polyaniline Electrode with Supercapattery Behavior. in Polymers
MDPI., 14(24), 5365.
https://doi.org/10.3390/polym14245365

Gojgić J, Petrović M, Jugović B, Jokić B, Grgur B, Gvozdenović M. Electrochemical and Electrical Performances of High Energy Storage Polyaniline Electrode with Supercapattery Behavior. in Polymers. 2022;14(24):5365.
doi:10.3390/polym14245365 .

Gojgić, Jelena, Petrović, Miloš, Jugović, Branimir, Jokić, Bojan, Grgur, Branimir, Gvozdenović, Milica, "Electrochemical and Electrical Performances of High Energy Storage Polyaniline Electrode with Supercapattery Behavior" in Polymers, 14, no. 24 (2022):5365,
https://doi.org/10.3390/polym14245365 . .

TY  - JOUR
AU  - Grgur, Branimir
AU  - Gojgić, Jelena
AU  - Petrović, Miloš
PY  - 2021
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4898
AB  - The novel method based on the inexpensive and fast modified successive ion layer adsorption and reaction (SILAR) method of preparing silver chloride cathode on the carbon felt is developed. The electrochemical behavior of the silver chloride cathode in the combination with magnesium alloy AZ63 anode is investigated, as the seawater activated primary cell. Under the discharge rate of the cell of 1C, 157 mA g(-1) of active materials, the voltage discharge plateau of similar to 1.25 V-0.9 V; specific capacity of 130 mAh g(-1); specific energy of 145 mWh g(-1), and specific power of 175 mW g(-1) are obtained.
T2  - Journal of Power Sources
T1  - A novel method of preparing the silver chloride cathode for the magnesium seawater activated primary cell
VL  - 490
DO  - 10.1016/j.jpowsour.2021.229549
ER  - 

@article{
author = "Grgur, Branimir and Gojgić, Jelena and Petrović, Miloš",
year = "2021",
abstract = "The novel method based on the inexpensive and fast modified successive ion layer adsorption and reaction (SILAR) method of preparing silver chloride cathode on the carbon felt is developed. The electrochemical behavior of the silver chloride cathode in the combination with magnesium alloy AZ63 anode is investigated, as the seawater activated primary cell. Under the discharge rate of the cell of 1C, 157 mA g(-1) of active materials, the voltage discharge plateau of similar to 1.25 V-0.9 V; specific capacity of 130 mAh g(-1); specific energy of 145 mWh g(-1), and specific power of 175 mW g(-1) are obtained.",
journal = "Journal of Power Sources",
title = "A novel method of preparing the silver chloride cathode for the magnesium seawater activated primary cell",
volume = "490",
doi = "10.1016/j.jpowsour.2021.229549"
}

Grgur, B., Gojgić, J.,& Petrović, M.. (2021). A novel method of preparing the silver chloride cathode for the magnesium seawater activated primary cell. in Journal of Power Sources, 490.
https://doi.org/10.1016/j.jpowsour.2021.229549

Grgur B, Gojgić J, Petrović M. A novel method of preparing the silver chloride cathode for the magnesium seawater activated primary cell. in Journal of Power Sources. 2021;490.
doi:10.1016/j.jpowsour.2021.229549 .

Grgur, Branimir, Gojgić, Jelena, Petrović, Miloš, "A novel method of preparing the silver chloride cathode for the magnesium seawater activated primary cell" in Journal of Power Sources, 490 (2021),
https://doi.org/10.1016/j.jpowsour.2021.229549 . .