TY  - JOUR
AU  - Elezović, Nevenka R.
AU  - Zabinski, P.
AU  - Lačnjevac, Uroš
AU  - Krstajić-Pajić, Mila
AU  - Jović, V. D.
PY  - 2021
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/10
AB  - Two types of iridium oxide films formed at the Ti-2 AlC substrate were investigated: (1) anodically electrodeposited iridium oxide film from the solution based on IrCl(3)xH(2)O; (2) iridium oxide film prepared by cycling thin layer of electrodeposited Ir in the 0.5 M H2SO4 from - 0.25 to 1.20 V. It was shown that during anodic electrodeposition of iridium oxide film (1) coulombic efficiency decreases with increasing anodic potential, being only 3% atE = 0.7 V vs. SCE and 26% atE = 0.62 V vs. SCE. A pair of peaks corresponding to the transition Ir(III)-oxide/Ir(IV)-oxide was present on the CVs recorded in 0.5 M H2SO4. While cycling pure Ir thin layer in the solution of 0.5 M H2SO4 from - 0.25 to 1.20 V (2) up to 100 cycles, typical CV response was characterized with the prepeak and a pair of peaks corresponding to the Ir(III)/Ir(IV)-oxide transition. With the increase of cycles number to 150, additional peak at potential of 1.0 V appeared. This peak was formed on the account of pair of peaks corresponding to the Ir(III)/Ir(IV)-oxide transition. The oxygen evolution reaction (OER) was investigated at both iridium oxide films. It was shown that the Tafel slope for the OER was similar to 40 mV dec(-1)for the first polarization curve, confirming that the rds was a reaction S-OH - gt  S-O-ads + H++ e(-). As the number of recorded polarization curves increased, the activity of both types of iridium oxide films decreased, due to dissolution of iridium oxide films at the potentials of the OER. It is shown that anodically electrodeposited iridium oxide film is more active for the OER than that obtained by cycling electrodeposited iridium layer. However, both iridium oxide films exhibited insufficient stability.
PB  - Springer, New York
T2  - Journal of Solid State Electrochemistry
T1  - Electrochemical deposition and characterization of iridium oxide films on Ti2AlC support for oxygen evolution reaction
EP  - 363
IS  - 1
SP  - 351
VL  - 25
DO  - 10.1007/s10008-020-04816-7
ER  - 

@article{
author = "Elezović, Nevenka R. and Zabinski, P. and Lačnjevac, Uroš and Krstajić-Pajić, Mila and Jović, V. D.",
year = "2021",
abstract = "Two types of iridium oxide films formed at the Ti-2 AlC substrate were investigated: (1) anodically electrodeposited iridium oxide film from the solution based on IrCl(3)xH(2)O; (2) iridium oxide film prepared by cycling thin layer of electrodeposited Ir in the 0.5 M H2SO4 from - 0.25 to 1.20 V. It was shown that during anodic electrodeposition of iridium oxide film (1) coulombic efficiency decreases with increasing anodic potential, being only 3% atE = 0.7 V vs. SCE and 26% atE = 0.62 V vs. SCE. A pair of peaks corresponding to the transition Ir(III)-oxide/Ir(IV)-oxide was present on the CVs recorded in 0.5 M H2SO4. While cycling pure Ir thin layer in the solution of 0.5 M H2SO4 from - 0.25 to 1.20 V (2) up to 100 cycles, typical CV response was characterized with the prepeak and a pair of peaks corresponding to the Ir(III)/Ir(IV)-oxide transition. With the increase of cycles number to 150, additional peak at potential of 1.0 V appeared. This peak was formed on the account of pair of peaks corresponding to the Ir(III)/Ir(IV)-oxide transition. The oxygen evolution reaction (OER) was investigated at both iridium oxide films. It was shown that the Tafel slope for the OER was similar to 40 mV dec(-1)for the first polarization curve, confirming that the rds was a reaction S-OH - gt  S-O-ads + H++ e(-). As the number of recorded polarization curves increased, the activity of both types of iridium oxide films decreased, due to dissolution of iridium oxide films at the potentials of the OER. It is shown that anodically electrodeposited iridium oxide film is more active for the OER than that obtained by cycling electrodeposited iridium layer. However, both iridium oxide films exhibited insufficient stability.",
publisher = "Springer, New York",
journal = "Journal of Solid State Electrochemistry",
title = "Electrochemical deposition and characterization of iridium oxide films on Ti2AlC support for oxygen evolution reaction",
pages = "363-351",
number = "1",
volume = "25",
doi = "10.1007/s10008-020-04816-7"
}

Elezović, N. R., Zabinski, P., Lačnjevac, U., Krstajić-Pajić, M.,& Jović, V. D.. (2021). Electrochemical deposition and characterization of iridium oxide films on Ti2AlC support for oxygen evolution reaction. in Journal of Solid State Electrochemistry
Springer, New York., 25(1), 351-363.
https://doi.org/10.1007/s10008-020-04816-7

Elezović NR, Zabinski P, Lačnjevac U, Krstajić-Pajić M, Jović VD. Electrochemical deposition and characterization of iridium oxide films on Ti2AlC support for oxygen evolution reaction. in Journal of Solid State Electrochemistry. 2021;25(1):351-363.
doi:10.1007/s10008-020-04816-7 .

Elezović, Nevenka R., Zabinski, P., Lačnjevac, Uroš, Krstajić-Pajić, Mila, Jović, V. D., "Electrochemical deposition and characterization of iridium oxide films on Ti2AlC support for oxygen evolution reaction" in Journal of Solid State Electrochemistry, 25, no. 1 (2021):351-363,
https://doi.org/10.1007/s10008-020-04816-7 . .

TY  - JOUR
AU  - Mijailović, Daniel
AU  - Radmilović, Vuk
AU  - Lačnjevac, Uroš
AU  - Stojanović, Dušica
AU  - Jović, Vladimir D.
AU  - Radmilović, Velimir R.
AU  - Uskoković, Petar
PY  - 2020
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4434
AB  - We report a mesoporous composite system consisting of carbon fiber cores surrounded with Co1.5Mn1.5O4 spinel nanocrystal shells, synthesized by a simple two-step process involving single-nozzle co-electrospinning and subsequent calcination. Benefiting from the obtained core-shell structure, this composite has exhibited high specific capacitance in the two-electrode configuration, up to 384 F g(-1) at 0.28 A g(-1), with no capacitance loss after 2000 cycles at 50 mV s(-1). The incorporation of spinel nanocrystals improved the capacitive performances of composite fibers due to a synergistic effect of redox-active shells and the conductive cores, making this novel material promising for symmetrical supercapacitors.
PB  - Elsevier B.V.
T2  - Applied Surface Science
T1  - Core–shell carbon fiber@Co1.5Mn1.5O4 mesoporous spinel electrode for high performance symmetrical supercapacitors
SP  - 147678
VL  - 534
DO  - 10.1016/j.apsusc.2020.147678
ER  - 

@article{
author = "Mijailović, Daniel and Radmilović, Vuk and Lačnjevac, Uroš and Stojanović, Dušica and Jović, Vladimir D. and Radmilović, Velimir R. and Uskoković, Petar",
year = "2020",
abstract = "We report a mesoporous composite system consisting of carbon fiber cores surrounded with Co1.5Mn1.5O4 spinel nanocrystal shells, synthesized by a simple two-step process involving single-nozzle co-electrospinning and subsequent calcination. Benefiting from the obtained core-shell structure, this composite has exhibited high specific capacitance in the two-electrode configuration, up to 384 F g(-1) at 0.28 A g(-1), with no capacitance loss after 2000 cycles at 50 mV s(-1). The incorporation of spinel nanocrystals improved the capacitive performances of composite fibers due to a synergistic effect of redox-active shells and the conductive cores, making this novel material promising for symmetrical supercapacitors.",
publisher = "Elsevier B.V.",
journal = "Applied Surface Science",
title = "Core–shell carbon fiber@Co1.5Mn1.5O4 mesoporous spinel electrode for high performance symmetrical supercapacitors",
pages = "147678",
volume = "534",
doi = "10.1016/j.apsusc.2020.147678"
}

Mijailović, D., Radmilović, V., Lačnjevac, U., Stojanović, D., Jović, V. D., Radmilović, V. R.,& Uskoković, P.. (2020). Core–shell carbon fiber@Co1.5Mn1.5O4 mesoporous spinel electrode for high performance symmetrical supercapacitors. in Applied Surface Science
Elsevier B.V.., 534, 147678.
https://doi.org/10.1016/j.apsusc.2020.147678

Mijailović D, Radmilović V, Lačnjevac U, Stojanović D, Jović VD, Radmilović VR, Uskoković P. Core–shell carbon fiber@Co1.5Mn1.5O4 mesoporous spinel electrode for high performance symmetrical supercapacitors. in Applied Surface Science. 2020;534:147678.
doi:10.1016/j.apsusc.2020.147678 .

Mijailović, Daniel, Radmilović, Vuk, Lačnjevac, Uroš, Stojanović, Dušica, Jović, Vladimir D., Radmilović, Velimir R., Uskoković, Petar, "Core–shell carbon fiber@Co1.5Mn1.5O4 mesoporous spinel electrode for high performance symmetrical supercapacitors" in Applied Surface Science, 534 (2020):147678,
https://doi.org/10.1016/j.apsusc.2020.147678 . .

TY  - JOUR
AU  - Elezović, Nevenka R.
AU  - Krstajić-Pajić, Mila
AU  - Jović, Vladimir D.
PY  - 2020
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4551
AB  - The hydrogen evolution reaction (HER) was investigated at sub-monolayers of iridium electrodeposited on Ti2AlC substrate. The lowest amount of electrodeposited iridium was 3 close-packed (111) monolayers (3 ML), while the highest one was 22 ML (3, 5, 10, 15 and 22 ML). The lowest and the highest amounts of iridium were electrodeposited by linear sweep voltammetry (LSV), while the other three samples were electrodeposited by controlled potential coulometry, from the solution containing 1 mM, or 3 mM K3IrCl6 + 0.5 M Na2SO4 (pH 6.2) at 70 °C. The HER was investigated by polarization and electrochemical impedance spectroscopy (EIS) measurements. Polarization curves for iridium sub-monolayers equal, or higher than 6 ML showed low Tafel slope of -14 to -16 mV dec-1 up to about -0.1 A cm-2, while at higher current densities the Tafel slopes increased, varying between -40 and -72 mV dec-1. The highest value of exchange current density (jo) was obtained for 6 ML of electrodeposited iridium, being -27.89 A g-1. The overpotential at j = -0.3 A cm-2 could be determined for samples containing 15 ML and 22 ML of iridium, being 82 mV.
AB  - Izdvajanje vodonika ispitivano je u rastvoru sumporne kiseline na elektrohemijski istaloženim slojevima (od 3 monosloja do 22 monosloja) iridijuma na podlozi od Ti2AlC. Najmanja i najveća količina iridijuma (3 i 22 monosloja) elektrohemijski su istaložene metodom linearne voltametrije, dok su preostala tri uzorka (6, 10 i 15 monoslojeva) elektrohemijski istaložena pri konstantnom potencijalu do potrebne količine naelektrisanja iz rastvora 1 mM, ili 3 mM K3IrCl6 + 0.5 M Na2SO4 (pH 6.2) na temperaturi rastvora od 70 °C. Reakcija izdvajanja vodonika ispitivana je na svim elektrodama snimanjem polarizacionih krivih. Za uzorak sa 22 monosloja Ir primenjena je i metoda impedanse. Polarizacione krive za uzorke sa 6, 10, 15 i 22 monosloja Ir bile su okarakterisane malom vrednošću Tafel-ovog nagiba od -14 to -16 mV dek-1 u oblasti gustina struja do -0.1 A cm-2, dok se Tafel-ov nagib povećavao pri većim gustinama struja varirajući od -40 do -72 mV dek-1. Najveća vrednost specifične gustine struje izmene (jo) dobijena je kod uzorka sa 6 monoslojeva Ir i iznosila je - 27.89 A g-1. Za uzorke sa 15 i 22 monosloja Ir vrednost prenapetosti pri gustini struje j = -0.3 A cm-2 (uslovi industrijske proizvodnje vodonika) iznosila je 82 mV.
PB  - Engineering Society for Corrosion, Belgrade, Serbia
T2  - Zaštita materijala
T1  - Sub-monolayers of iridium electrodeposited on Ti2AlC substrate as catalysts for hydrogen evolution reaction in sulfuric acid solution
T1  - Nekoliko monoslojeva elektrohemijski istaloženog iridijuma na podlozi od Ti2AlC kao katalizatori za izdvajanje vodonika u rastvoru sumporne kiseline
EP  - 191
IS  - 3
SP  - 181
VL  - 61
DO  - 10.5937/zasmat2003181E
ER  - 

@article{
author = "Elezović, Nevenka R. and Krstajić-Pajić, Mila and Jović, Vladimir D.",
year = "2020",
abstract = "The hydrogen evolution reaction (HER) was investigated at sub-monolayers of iridium electrodeposited on Ti2AlC substrate. The lowest amount of electrodeposited iridium was 3 close-packed (111) monolayers (3 ML), while the highest one was 22 ML (3, 5, 10, 15 and 22 ML). The lowest and the highest amounts of iridium were electrodeposited by linear sweep voltammetry (LSV), while the other three samples were electrodeposited by controlled potential coulometry, from the solution containing 1 mM, or 3 mM K3IrCl6 + 0.5 M Na2SO4 (pH 6.2) at 70 °C. The HER was investigated by polarization and electrochemical impedance spectroscopy (EIS) measurements. Polarization curves for iridium sub-monolayers equal, or higher than 6 ML showed low Tafel slope of -14 to -16 mV dec-1 up to about -0.1 A cm-2, while at higher current densities the Tafel slopes increased, varying between -40 and -72 mV dec-1. The highest value of exchange current density (jo) was obtained for 6 ML of electrodeposited iridium, being -27.89 A g-1. The overpotential at j = -0.3 A cm-2 could be determined for samples containing 15 ML and 22 ML of iridium, being 82 mV., Izdvajanje vodonika ispitivano je u rastvoru sumporne kiseline na elektrohemijski istaloženim slojevima (od 3 monosloja do 22 monosloja) iridijuma na podlozi od Ti2AlC. Najmanja i najveća količina iridijuma (3 i 22 monosloja) elektrohemijski su istaložene metodom linearne voltametrije, dok su preostala tri uzorka (6, 10 i 15 monoslojeva) elektrohemijski istaložena pri konstantnom potencijalu do potrebne količine naelektrisanja iz rastvora 1 mM, ili 3 mM K3IrCl6 + 0.5 M Na2SO4 (pH 6.2) na temperaturi rastvora od 70 °C. Reakcija izdvajanja vodonika ispitivana je na svim elektrodama snimanjem polarizacionih krivih. Za uzorak sa 22 monosloja Ir primenjena je i metoda impedanse. Polarizacione krive za uzorke sa 6, 10, 15 i 22 monosloja Ir bile su okarakterisane malom vrednošću Tafel-ovog nagiba od -14 to -16 mV dek-1 u oblasti gustina struja do -0.1 A cm-2, dok se Tafel-ov nagib povećavao pri većim gustinama struja varirajući od -40 do -72 mV dek-1. Najveća vrednost specifične gustine struje izmene (jo) dobijena je kod uzorka sa 6 monoslojeva Ir i iznosila je - 27.89 A g-1. Za uzorke sa 15 i 22 monosloja Ir vrednost prenapetosti pri gustini struje j = -0.3 A cm-2 (uslovi industrijske proizvodnje vodonika) iznosila je 82 mV.",
publisher = "Engineering Society for Corrosion, Belgrade, Serbia",
journal = "Zaštita materijala",
title = "Sub-monolayers of iridium electrodeposited on Ti2AlC substrate as catalysts for hydrogen evolution reaction in sulfuric acid solution, Nekoliko monoslojeva elektrohemijski istaloženog iridijuma na podlozi od Ti2AlC kao katalizatori za izdvajanje vodonika u rastvoru sumporne kiseline",
pages = "191-181",
number = "3",
volume = "61",
doi = "10.5937/zasmat2003181E"
}

Elezović, N. R., Krstajić-Pajić, M.,& Jović, V. D.. (2020). Sub-monolayers of iridium electrodeposited on Ti2AlC substrate as catalysts for hydrogen evolution reaction in sulfuric acid solution. in Zaštita materijala
Engineering Society for Corrosion, Belgrade, Serbia., 61(3), 181-191.
https://doi.org/10.5937/zasmat2003181E

Elezović NR, Krstajić-Pajić M, Jović VD. Sub-monolayers of iridium electrodeposited on Ti2AlC substrate as catalysts for hydrogen evolution reaction in sulfuric acid solution. in Zaštita materijala. 2020;61(3):181-191.
doi:10.5937/zasmat2003181E .

Elezović, Nevenka R., Krstajić-Pajić, Mila, Jović, Vladimir D., "Sub-monolayers of iridium electrodeposited on Ti2AlC substrate as catalysts for hydrogen evolution reaction in sulfuric acid solution" in Zaštita materijala, 61, no. 3 (2020):181-191,
https://doi.org/10.5937/zasmat2003181E . .

TY  - JOUR
AU  - Elezović, Nevenka R.
AU  - Zabinski, Piotr
AU  - Krstajić-Pajić, Mila
AU  - Tokarski, Tomasz
AU  - Jović, Borka M.
AU  - Jović, Vladimir D.
PY  - 2018
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4011
AB  - The AgPd alloys were electrodeposited onto Au and glassy carbon disc electrodes from the solution containing 0 001 mol dm(-3) PdCl2 + 0.04 mol dm(-3) AgCl + 0.1 mol dm(-3) HCl + 12 mol dm(-3) LiCl under the non-stationary diffusion (quiescent electrolyte) and convective diffusion (omega = 1000 rpm) to the different amounts of charge and at different current densities. Electro-deposited alloy layers were characterized by the anodic linear sweep voltam-metry (ALSV), scanning electron microscopy, energy dispersive X-ray spectro-scopy (EDS) and X-ray photoelectron spectroscopy (XPS). The compositions of the AgPd alloys determined by the EDS were almost identical to the theoretically predicted ones, while the compositions obtained by XPS and ALSV analysis were similar to each other, but different from those obtained by EDS. Deviation from the theoretically predicted values (determined by the ratio j(L)(Pd)/j(Ag)) was more pronounced at lower current densities and lower charges of AgPd alloys electrodeposition, due to the lower current efficiencies for alloys electrodeposition. The ALSV analysis indicated the presence of Ag and Pd, expressed by two ALSV peaks, and in some cases the presence of the additional peak, which was found to correspond to the dissolution of large AgPd crystals, formed at thicker electrodeposits (higher electrodeposition charge), indicating, for the first time, that besides the phase structure, the morphology of alloy electrodeposit could also influence the shape of the ALSV response. In addition to Ag and Pd, the XPS analysis confirmed the presence of AgCl at the surface of samples electrodeposited to low thicknesses (amounts of charge).
PB  - Srpsko hemijsko društvo, Beograd
T2  - Journal of the Serbian Chemical Society
T1  - Electrochemical deposition and characterization of AgPd alloy layers
EP  - 609
IS  - 5
SP  - 593
VL  - 83
DO  - 10.2298/JSC171103011E
ER  - 

@article{
author = "Elezović, Nevenka R. and Zabinski, Piotr and Krstajić-Pajić, Mila and Tokarski, Tomasz and Jović, Borka M. and Jović, Vladimir D.",
year = "2018",
abstract = "The AgPd alloys were electrodeposited onto Au and glassy carbon disc electrodes from the solution containing 0 001 mol dm(-3) PdCl2 + 0.04 mol dm(-3) AgCl + 0.1 mol dm(-3) HCl + 12 mol dm(-3) LiCl under the non-stationary diffusion (quiescent electrolyte) and convective diffusion (omega = 1000 rpm) to the different amounts of charge and at different current densities. Electro-deposited alloy layers were characterized by the anodic linear sweep voltam-metry (ALSV), scanning electron microscopy, energy dispersive X-ray spectro-scopy (EDS) and X-ray photoelectron spectroscopy (XPS). The compositions of the AgPd alloys determined by the EDS were almost identical to the theoretically predicted ones, while the compositions obtained by XPS and ALSV analysis were similar to each other, but different from those obtained by EDS. Deviation from the theoretically predicted values (determined by the ratio j(L)(Pd)/j(Ag)) was more pronounced at lower current densities and lower charges of AgPd alloys electrodeposition, due to the lower current efficiencies for alloys electrodeposition. The ALSV analysis indicated the presence of Ag and Pd, expressed by two ALSV peaks, and in some cases the presence of the additional peak, which was found to correspond to the dissolution of large AgPd crystals, formed at thicker electrodeposits (higher electrodeposition charge), indicating, for the first time, that besides the phase structure, the morphology of alloy electrodeposit could also influence the shape of the ALSV response. In addition to Ag and Pd, the XPS analysis confirmed the presence of AgCl at the surface of samples electrodeposited to low thicknesses (amounts of charge).",
publisher = "Srpsko hemijsko društvo, Beograd",
journal = "Journal of the Serbian Chemical Society",
title = "Electrochemical deposition and characterization of AgPd alloy layers",
pages = "609-593",
number = "5",
volume = "83",
doi = "10.2298/JSC171103011E"
}

Elezović, N. R., Zabinski, P., Krstajić-Pajić, M., Tokarski, T., Jović, B. M.,& Jović, V. D.. (2018). Electrochemical deposition and characterization of AgPd alloy layers. in Journal of the Serbian Chemical Society
Srpsko hemijsko društvo, Beograd., 83(5), 593-609.
https://doi.org/10.2298/JSC171103011E

Elezović NR, Zabinski P, Krstajić-Pajić M, Tokarski T, Jović BM, Jović VD. Electrochemical deposition and characterization of AgPd alloy layers. in Journal of the Serbian Chemical Society. 2018;83(5):593-609.
doi:10.2298/JSC171103011E .

Elezović, Nevenka R., Zabinski, Piotr, Krstajić-Pajić, Mila, Tokarski, Tomasz, Jović, Borka M., Jović, Vladimir D., "Electrochemical deposition and characterization of AgPd alloy layers" in Journal of the Serbian Chemical Society, 83, no. 5 (2018):593-609,
https://doi.org/10.2298/JSC171103011E . .

TY  - JOUR
AU  - Jović, Borka M
AU  - Lačnjevac, Uroš
AU  - Jović, Vladimir D
AU  - Krstajić, Nedeljko V
PY  - 2015
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5765
AB  - In order to examine the intrinsic catalytic activity and durability of the electrodeposited NiSn alloy electrodes and the electrodeposited Ni as a reference electrode material for the oxygen evolution reaction (OER) in alkaline solutions, a comparative investigation was performed. A series of NiSn electrodes were prepared by electrodeposition of NiSn alloys at different current densities onto a Ni40 mesh substrate. The surface morphology and chemical composition were studied by scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDS). The electrochemical surface characteristics were studied by cyclic voltammetry in order to find interdependence between the nickel oxyhydroxide surface electrochemistry and the activity of the electrode for the OER Quasi steady-state polarization measurements and electrochemical impedance spectroscopy (EIS) were used to determine kinetically significant parameters including the Tafel slopes and exchange current densities. Two well-defined Tafel slopes, the same for all investigated NiSn electrodes, were observed at the polarization curves, indicating that the OER was controlled by the same mechanism. It was demonstrated that any anodic polarization pretreatment led to a shift of the anodic and cathodic current peaks corresponding to the Ni(II)/Ni(III) redox transition towards cathodic potentials and, consequently, to some activation of the NiSn electrodes. The opposite behavior was obtained for the Ni electrode. Prolonged anodic polarization led to a loss of the initial catalytic activity of the Ni electrode, which was explained by the increase in the portion of gamma-NiOOH at the Ni electrode surface. Among the investigated NiSn electrodes, the NiSn100 electrode, prepared by electrodeposition at the highest cathodic current density of - 100 mAcm(-2), exhibited the highest apparent catalytic activity for the OER, entirely due to surface roughness effects. Despite the fact that the NiSn electrodes did not exhibit better intrinsic catalytic activity than Ni, their high stability during the OER and acceptable apparent activity made them promising anodes for alkaline water electrolysis.
PB  - Elsevier Science Sa, Lausanne
T2  - Journal of Electroanalytical Chemistry
T1  - Kinetics of the oxygen evolution reaction on NiSn electrodes in alkaline solutions
EP  - 108
SP  - 100
VL  - 754
DO  - 10.1016/j.jelechem.2015.07.013
ER  - 

@article{
author = "Jović, Borka M and Lačnjevac, Uroš and Jović, Vladimir D and Krstajić, Nedeljko V",
year = "2015",
abstract = "In order to examine the intrinsic catalytic activity and durability of the electrodeposited NiSn alloy electrodes and the electrodeposited Ni as a reference electrode material for the oxygen evolution reaction (OER) in alkaline solutions, a comparative investigation was performed. A series of NiSn electrodes were prepared by electrodeposition of NiSn alloys at different current densities onto a Ni40 mesh substrate. The surface morphology and chemical composition were studied by scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDS). The electrochemical surface characteristics were studied by cyclic voltammetry in order to find interdependence between the nickel oxyhydroxide surface electrochemistry and the activity of the electrode for the OER Quasi steady-state polarization measurements and electrochemical impedance spectroscopy (EIS) were used to determine kinetically significant parameters including the Tafel slopes and exchange current densities. Two well-defined Tafel slopes, the same for all investigated NiSn electrodes, were observed at the polarization curves, indicating that the OER was controlled by the same mechanism. It was demonstrated that any anodic polarization pretreatment led to a shift of the anodic and cathodic current peaks corresponding to the Ni(II)/Ni(III) redox transition towards cathodic potentials and, consequently, to some activation of the NiSn electrodes. The opposite behavior was obtained for the Ni electrode. Prolonged anodic polarization led to a loss of the initial catalytic activity of the Ni electrode, which was explained by the increase in the portion of gamma-NiOOH at the Ni electrode surface. Among the investigated NiSn electrodes, the NiSn100 electrode, prepared by electrodeposition at the highest cathodic current density of - 100 mAcm(-2), exhibited the highest apparent catalytic activity for the OER, entirely due to surface roughness effects. Despite the fact that the NiSn electrodes did not exhibit better intrinsic catalytic activity than Ni, their high stability during the OER and acceptable apparent activity made them promising anodes for alkaline water electrolysis.",
publisher = "Elsevier Science Sa, Lausanne",
journal = "Journal of Electroanalytical Chemistry",
title = "Kinetics of the oxygen evolution reaction on NiSn electrodes in alkaline solutions",
pages = "108-100",
volume = "754",
doi = "10.1016/j.jelechem.2015.07.013"
}

Jović, B. M., Lačnjevac, U., Jović, V. D.,& Krstajić, N. V.. (2015). Kinetics of the oxygen evolution reaction on NiSn electrodes in alkaline solutions. in Journal of Electroanalytical Chemistry
Elsevier Science Sa, Lausanne., 754, 100-108.
https://doi.org/10.1016/j.jelechem.2015.07.013

Jović BM, Lačnjevac U, Jović VD, Krstajić NV. Kinetics of the oxygen evolution reaction on NiSn electrodes in alkaline solutions. in Journal of Electroanalytical Chemistry. 2015;754:100-108.
doi:10.1016/j.jelechem.2015.07.013 .

Jović, Borka M, Lačnjevac, Uroš, Jović, Vladimir D, Krstajić, Nedeljko V, "Kinetics of the oxygen evolution reaction on NiSn electrodes in alkaline solutions" in Journal of Electroanalytical Chemistry, 754 (2015):100-108,
https://doi.org/10.1016/j.jelechem.2015.07.013 . .

TY  - JOUR
AU  - Jović, Borka M
AU  - Lačnjevac, Uroš
AU  - Krstajić, Nedeljko V
AU  - Jović, Vladimir D
PY  - 2014
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5784
AB  - In this work the "service life test" (SLT) of the NiSn alloy coatings as cathodes for the hydrogen evolution reaction (HER), deposited onto Ni 40 mesh at different current densities from the bath containing 0.1 mol dm(-3) SnCl2 + 0.3 mol dm(-3) NiCl2 + 0.6 mol dm(-3) K4P2O7 + 0.3 mol dm(-3) NH2CH2COOH at 50 degrees C, was investigated and compared with that recorded for the commercial Ni-RuO2 De Nora's (DN) cathode. The morphology and chemical compositions of all NiSn samples were investigated by SEM and EDS techniques before and after the SLT. HER during the SLT has also been monitored by EIS technique. The chemical compositions of surfaces of all NiSn alloy samples, as well as EIS results, were found to depend on the number of cycles performed during the SLT. The decrease of their catalytic activity for the HER in 32 wt.% NaOH at 90 degrees C with increasing the number of cycles (about 20-25 mV after 25 cycles) was practically identical to that for DN cathode, while NiSn samples deposited at -30 mA cm(-2), -60 mA cm(-2) and -100 mA cm(-2) possessed lower overpotential for the HER before and after SLT in comparison with that for the DN cathode. It is confirmed by the SEM-EDS and EIS analysis of the NiSn samples that the minor loss of the catalytic activity for the HER is the consequence of the change of chemical composition of NiSn coatings and decrease of the active surface area. This decrease is ascribed to partially eroded NiSn coatings due to oxygen evolution during the SLT.
PB  - Pergamon-Elsevier Science Ltd, Oxford
T2  - International Journal of Hydrogen Energy
T1  - Service life test of the NiSn coatings as cathodes for hydrogen evolution in industrial chlor-alkali electrolysis
EP  - 8958
IS  - 17
SP  - 8947
VL  - 39
DO  - 10.1016/j.ijhydene.2014.04.015
ER  - 

@article{
author = "Jović, Borka M and Lačnjevac, Uroš and Krstajić, Nedeljko V and Jović, Vladimir D",
year = "2014",
abstract = "In this work the "service life test" (SLT) of the NiSn alloy coatings as cathodes for the hydrogen evolution reaction (HER), deposited onto Ni 40 mesh at different current densities from the bath containing 0.1 mol dm(-3) SnCl2 + 0.3 mol dm(-3) NiCl2 + 0.6 mol dm(-3) K4P2O7 + 0.3 mol dm(-3) NH2CH2COOH at 50 degrees C, was investigated and compared with that recorded for the commercial Ni-RuO2 De Nora's (DN) cathode. The morphology and chemical compositions of all NiSn samples were investigated by SEM and EDS techniques before and after the SLT. HER during the SLT has also been monitored by EIS technique. The chemical compositions of surfaces of all NiSn alloy samples, as well as EIS results, were found to depend on the number of cycles performed during the SLT. The decrease of their catalytic activity for the HER in 32 wt.% NaOH at 90 degrees C with increasing the number of cycles (about 20-25 mV after 25 cycles) was practically identical to that for DN cathode, while NiSn samples deposited at -30 mA cm(-2), -60 mA cm(-2) and -100 mA cm(-2) possessed lower overpotential for the HER before and after SLT in comparison with that for the DN cathode. It is confirmed by the SEM-EDS and EIS analysis of the NiSn samples that the minor loss of the catalytic activity for the HER is the consequence of the change of chemical composition of NiSn coatings and decrease of the active surface area. This decrease is ascribed to partially eroded NiSn coatings due to oxygen evolution during the SLT.",
publisher = "Pergamon-Elsevier Science Ltd, Oxford",
journal = "International Journal of Hydrogen Energy",
title = "Service life test of the NiSn coatings as cathodes for hydrogen evolution in industrial chlor-alkali electrolysis",
pages = "8958-8947",
number = "17",
volume = "39",
doi = "10.1016/j.ijhydene.2014.04.015"
}

Jović, B. M., Lačnjevac, U., Krstajić, N. V.,& Jović, V. D.. (2014). Service life test of the NiSn coatings as cathodes for hydrogen evolution in industrial chlor-alkali electrolysis. in International Journal of Hydrogen Energy
Pergamon-Elsevier Science Ltd, Oxford., 39(17), 8947-8958.
https://doi.org/10.1016/j.ijhydene.2014.04.015

Jović BM, Lačnjevac U, Krstajić NV, Jović VD. Service life test of the NiSn coatings as cathodes for hydrogen evolution in industrial chlor-alkali electrolysis. in International Journal of Hydrogen Energy. 2014;39(17):8947-8958.
doi:10.1016/j.ijhydene.2014.04.015 .

Jović, Borka M, Lačnjevac, Uroš, Krstajić, Nedeljko V, Jović, Vladimir D, "Service life test of the NiSn coatings as cathodes for hydrogen evolution in industrial chlor-alkali electrolysis" in International Journal of Hydrogen Energy, 39, no. 17 (2014):8947-8958,
https://doi.org/10.1016/j.ijhydene.2014.04.015 . .

TY  - JOUR
AU  - Jović, Borka M
AU  - Lačnjevac, Uroš
AU  - Krstajić, Nedeljko V
AU  - Jović, Vladimir D
PY  - 2013
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5706
AB  - In this work the hydrogen evolution reaction (HER) at Ni-Sn alloy coatings, deposited onto Ni 40 mesh at different current densities from the bath containing 0.1 mol dm(-3) SnCl2 + 0.3 mol dm(-3) NiCl2 in the pyrophosphate-glycine solutions, was investigated by polarization and EIS measurements. The morphology and chemical compositions of all samples were investigated by the SEM and EDS techniques. It was shown that their morphologies and chemical compositions depend on the deposition current density. The increase of their catalytic activity for the HER in 6 mol dm(-3) KOH and in 1 mol dm(-3) NaOH with increasing the deposition current density was shown to be the consequence of the change of both: their chemical composition and morphology.
PB  - Pergamon-Elsevier Science Ltd, Oxford
T2  - Electrochimica Acta
T1  - Ni-Sn coatings as cathodes for hydrogen evolution in alkaline solutions
EP  - 818
SP  - 813
VL  - 114
DO  - 10.1016/j.electacta.2013.06.024
ER  - 

@article{
author = "Jović, Borka M and Lačnjevac, Uroš and Krstajić, Nedeljko V and Jović, Vladimir D",
year = "2013",
abstract = "In this work the hydrogen evolution reaction (HER) at Ni-Sn alloy coatings, deposited onto Ni 40 mesh at different current densities from the bath containing 0.1 mol dm(-3) SnCl2 + 0.3 mol dm(-3) NiCl2 in the pyrophosphate-glycine solutions, was investigated by polarization and EIS measurements. The morphology and chemical compositions of all samples were investigated by the SEM and EDS techniques. It was shown that their morphologies and chemical compositions depend on the deposition current density. The increase of their catalytic activity for the HER in 6 mol dm(-3) KOH and in 1 mol dm(-3) NaOH with increasing the deposition current density was shown to be the consequence of the change of both: their chemical composition and morphology.",
publisher = "Pergamon-Elsevier Science Ltd, Oxford",
journal = "Electrochimica Acta",
title = "Ni-Sn coatings as cathodes for hydrogen evolution in alkaline solutions",
pages = "818-813",
volume = "114",
doi = "10.1016/j.electacta.2013.06.024"
}

Jović, B. M., Lačnjevac, U., Krstajić, N. V.,& Jović, V. D.. (2013). Ni-Sn coatings as cathodes for hydrogen evolution in alkaline solutions. in Electrochimica Acta
Pergamon-Elsevier Science Ltd, Oxford., 114, 813-818.
https://doi.org/10.1016/j.electacta.2013.06.024

Jović BM, Lačnjevac U, Krstajić NV, Jović VD. Ni-Sn coatings as cathodes for hydrogen evolution in alkaline solutions. in Electrochimica Acta. 2013;114:813-818.
doi:10.1016/j.electacta.2013.06.024 .

Jović, Borka M, Lačnjevac, Uroš, Krstajić, Nedeljko V, Jović, Vladimir D, "Ni-Sn coatings as cathodes for hydrogen evolution in alkaline solutions" in Electrochimica Acta, 114 (2013):813-818,
https://doi.org/10.1016/j.electacta.2013.06.024 . .

TY  - JOUR
AU  - Lačnjevac, Uroš
AU  - Jović, Borka M
AU  - Jović, Vladimir D
AU  - Radmilović, Velimir R
AU  - Krstajić, Nedeljko V
PY  - 2013
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5703
AB  - The hydrogen evolution reaction (HER) was studied on Ni, Ni-Ebonex and Ni-(Ebonex-Ru) coatings in 1 mol dm(-3) NaOH solution at 25 degrees C. The composite coatings were electro-deposited from a nickel Watts-type bath containing suspended Ebonex (chemical composition mainly Ti4O7) or Ebonex-supported Ru(10 wt.%) particles (0-10 g dm(-3)) onto Ni mesh substrate. The electrodes were investigated by cyclic voltammetry (CV), transmission electron microscopy (TEM) and scanning electron microscopy (SEM) in combination with energy dispersive X-ray spectroscopy (EDS) and electron energy loss spectroscopy (EELS), electrochemical impedance spectroscopy (EIS) and polarization measurements. These investigations showed that the roughness factor of the Ni-(Ebonex-Ru) and the Ni-Ebonex coating was 29 and 6 times higher than that of a pure Ni coating, respectively. In the whole potential range of the HER only one Tafel slope of about -120 mV was present at the polarization curves of Ni and Ni-Ebonex electrodes, with increased activity of the latter being attributed only to the increase of the electrochemically active surface area. The Ni(Ebonex-Ru) electrodes exhibited the highest intrinsic catalytic activity with two Tafel slopes, indicating also that the HER takes place exclusively. on Ru active sites.
PB  - Pergamon-Elsevier Science Ltd, Oxford
T2  - International Journal of Hydrogen Energy
T1  - Kinetics of the hydrogen evolution reaction on Ni-(Ebonex-supported Ru) composite coatings in alkaline solution
EP  - 10190
IS  - 25
SP  - 10178
VL  - 38
DO  - 10.1016/j.ijhydene.2013.06.037
ER  - 

@article{
author = "Lačnjevac, Uroš and Jović, Borka M and Jović, Vladimir D and Radmilović, Velimir R and Krstajić, Nedeljko V",
year = "2013",
abstract = "The hydrogen evolution reaction (HER) was studied on Ni, Ni-Ebonex and Ni-(Ebonex-Ru) coatings in 1 mol dm(-3) NaOH solution at 25 degrees C. The composite coatings were electro-deposited from a nickel Watts-type bath containing suspended Ebonex (chemical composition mainly Ti4O7) or Ebonex-supported Ru(10 wt.%) particles (0-10 g dm(-3)) onto Ni mesh substrate. The electrodes were investigated by cyclic voltammetry (CV), transmission electron microscopy (TEM) and scanning electron microscopy (SEM) in combination with energy dispersive X-ray spectroscopy (EDS) and electron energy loss spectroscopy (EELS), electrochemical impedance spectroscopy (EIS) and polarization measurements. These investigations showed that the roughness factor of the Ni-(Ebonex-Ru) and the Ni-Ebonex coating was 29 and 6 times higher than that of a pure Ni coating, respectively. In the whole potential range of the HER only one Tafel slope of about -120 mV was present at the polarization curves of Ni and Ni-Ebonex electrodes, with increased activity of the latter being attributed only to the increase of the electrochemically active surface area. The Ni(Ebonex-Ru) electrodes exhibited the highest intrinsic catalytic activity with two Tafel slopes, indicating also that the HER takes place exclusively. on Ru active sites.",
publisher = "Pergamon-Elsevier Science Ltd, Oxford",
journal = "International Journal of Hydrogen Energy",
title = "Kinetics of the hydrogen evolution reaction on Ni-(Ebonex-supported Ru) composite coatings in alkaline solution",
pages = "10190-10178",
number = "25",
volume = "38",
doi = "10.1016/j.ijhydene.2013.06.037"
}

Lačnjevac, U., Jović, B. M., Jović, V. D., Radmilović, V. R.,& Krstajić, N. V.. (2013). Kinetics of the hydrogen evolution reaction on Ni-(Ebonex-supported Ru) composite coatings in alkaline solution. in International Journal of Hydrogen Energy
Pergamon-Elsevier Science Ltd, Oxford., 38(25), 10178-10190.
https://doi.org/10.1016/j.ijhydene.2013.06.037

Lačnjevac U, Jović BM, Jović VD, Radmilović VR, Krstajić NV. Kinetics of the hydrogen evolution reaction on Ni-(Ebonex-supported Ru) composite coatings in alkaline solution. in International Journal of Hydrogen Energy. 2013;38(25):10178-10190.
doi:10.1016/j.ijhydene.2013.06.037 .

Lačnjevac, Uroš, Jović, Borka M, Jović, Vladimir D, Radmilović, Velimir R, Krstajić, Nedeljko V, "Kinetics of the hydrogen evolution reaction on Ni-(Ebonex-supported Ru) composite coatings in alkaline solution" in International Journal of Hydrogen Energy, 38, no. 25 (2013):10178-10190,
https://doi.org/10.1016/j.ijhydene.2013.06.037 . .

TY  - JOUR
AU  - Jović, Vladimir D
AU  - Lačnjevac, Uroš
AU  - Jović, Borka M
AU  - Karanović, Ljiljana C.
AU  - Krstajić, Nedeljko V
PY  - 2012
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5718
AB  - In this work the hydrogen evolution reaction (HER) onto Ni-Sn alloy coatings deposited at different current densities from the bath containing 0.1 M Sn2+ and 0.1 M Ni2+ ions in the pyrophosphate-glycine solution, was investigated by polarization curves and electrochemical impedance spectroscopy (EIS) measurements. Their morphology and chemical composition were investigated by scanning electron microscopy equipped with an energy-dispersive X-ray spectroscopy (SEM-EDS), while the phase composition was investigated by X-ray powder diffraction (XRPD). It was shown that their chemical composition, phase composition and morphology depend on the deposition current density. In deposited samples all detected phases, face centered cubic (fcc) Ni, close packed (hcp) hexagonal Ni3Sn, hexagonal Ni(1-i-x)Sn (0  lt  x  lt  0.5) which adopts NiAs structure type and monoclinic Ni3Sn4 (CoSn structure type), were of low crystallinity. The increase of the Ni-Sn alloy coatings catalytic activity for HER in 6 M KOH with increasing the deposition current density was shown to be the consequence of the change of all three parameters: chemical composition, phase composition and morphology, with the effect of morphology being the most pronounced.
PB  - Pergamon-Elsevier Science Ltd, Oxford
T2  - International Journal of Hydrogen Energy
T1  - Ni-Sn coatings as cathodes for hydrogen evolution in alkaline solution. Chemical composition, phase composition and morphology effects
EP  - 17891
IS  - 23
SP  - 17882
VL  - 37
DO  - 10.1016/j.ijhydene.2012.09.110
ER  - 

@article{
author = "Jović, Vladimir D and Lačnjevac, Uroš and Jović, Borka M and Karanović, Ljiljana C. and Krstajić, Nedeljko V",
year = "2012",
abstract = "In this work the hydrogen evolution reaction (HER) onto Ni-Sn alloy coatings deposited at different current densities from the bath containing 0.1 M Sn2+ and 0.1 M Ni2+ ions in the pyrophosphate-glycine solution, was investigated by polarization curves and electrochemical impedance spectroscopy (EIS) measurements. Their morphology and chemical composition were investigated by scanning electron microscopy equipped with an energy-dispersive X-ray spectroscopy (SEM-EDS), while the phase composition was investigated by X-ray powder diffraction (XRPD). It was shown that their chemical composition, phase composition and morphology depend on the deposition current density. In deposited samples all detected phases, face centered cubic (fcc) Ni, close packed (hcp) hexagonal Ni3Sn, hexagonal Ni(1-i-x)Sn (0  lt  x  lt  0.5) which adopts NiAs structure type and monoclinic Ni3Sn4 (CoSn structure type), were of low crystallinity. The increase of the Ni-Sn alloy coatings catalytic activity for HER in 6 M KOH with increasing the deposition current density was shown to be the consequence of the change of all three parameters: chemical composition, phase composition and morphology, with the effect of morphology being the most pronounced.",
publisher = "Pergamon-Elsevier Science Ltd, Oxford",
journal = "International Journal of Hydrogen Energy",
title = "Ni-Sn coatings as cathodes for hydrogen evolution in alkaline solution. Chemical composition, phase composition and morphology effects",
pages = "17891-17882",
number = "23",
volume = "37",
doi = "10.1016/j.ijhydene.2012.09.110"
}

Jović, V. D., Lačnjevac, U., Jović, B. M., Karanović, L. C.,& Krstajić, N. V.. (2012). Ni-Sn coatings as cathodes for hydrogen evolution in alkaline solution. Chemical composition, phase composition and morphology effects. in International Journal of Hydrogen Energy
Pergamon-Elsevier Science Ltd, Oxford., 37(23), 17882-17891.
https://doi.org/10.1016/j.ijhydene.2012.09.110

Jović VD, Lačnjevac U, Jović BM, Karanović LC, Krstajić NV. Ni-Sn coatings as cathodes for hydrogen evolution in alkaline solution. Chemical composition, phase composition and morphology effects. in International Journal of Hydrogen Energy. 2012;37(23):17882-17891.
doi:10.1016/j.ijhydene.2012.09.110 .

Jović, Vladimir D, Lačnjevac, Uroš, Jović, Borka M, Karanović, Ljiljana C., Krstajić, Nedeljko V, "Ni-Sn coatings as cathodes for hydrogen evolution in alkaline solution. Chemical composition, phase composition and morphology effects" in International Journal of Hydrogen Energy, 37, no. 23 (2012):17882-17891,
https://doi.org/10.1016/j.ijhydene.2012.09.110 . .

TY  - JOUR
AU  - Jović, Vladimir D
AU  - Lačnjevac, Uroš
AU  - Jović, Borka M
AU  - Krstajić, Nedeljko V
PY  - 2012
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5738
AB  - In this work polarization characteristics and "service life" test of the non-noble metal composite coatings Ni-MoOx and Ni-MoO2 for hydrogen evolution reaction (HER) in 32 wt.% NaOH at 90 degrees C were investigated and compared with that recorded for De Nora's commercial Ni + RuO2 cathode coating (DN). It was shown that under conditions of industrial application in the "zero-gap" membrane cells the lowest over-voltage for HER has been recorded for the Ni-MoO2 coating. At the same time the "service life" test was performed on all three electrodes in the same solution. This test was based on monitoring the current density response before and after repetitive cycling of these electrodes with 50 mV s(-1) in the potential range from hydrogen (-1.25 V vs. SCE) to oxygen (0.50 V vs. SCE) evolution. It was shown that the activity for all electrodes at the end of a "service life" test dropped to approximately 54% of the initial value, being comparable with the results obtained for Pt-based cathodes. The SEM-EDS analysis of the electrodes after the "service life" test showed that the Ni-MoO2 is much more stable than the Ni-MoOx composite coating and could be promising replacement for the commercial cathode.
PB  - Pergamon-Elsevier Science Ltd, Oxford
T2  - Electrochimica Acta
T1  - Service life test of non-noble metal composite cathodes for hydrogen evolution in sodium hydroxide solution
EP  - 130
SP  - 124
VL  - 63
DO  - 10.1016/j.electacta.2011.12.078
ER  - 

@article{
author = "Jović, Vladimir D and Lačnjevac, Uroš and Jović, Borka M and Krstajić, Nedeljko V",
year = "2012",
abstract = "In this work polarization characteristics and "service life" test of the non-noble metal composite coatings Ni-MoOx and Ni-MoO2 for hydrogen evolution reaction (HER) in 32 wt.% NaOH at 90 degrees C were investigated and compared with that recorded for De Nora's commercial Ni + RuO2 cathode coating (DN). It was shown that under conditions of industrial application in the "zero-gap" membrane cells the lowest over-voltage for HER has been recorded for the Ni-MoO2 coating. At the same time the "service life" test was performed on all three electrodes in the same solution. This test was based on monitoring the current density response before and after repetitive cycling of these electrodes with 50 mV s(-1) in the potential range from hydrogen (-1.25 V vs. SCE) to oxygen (0.50 V vs. SCE) evolution. It was shown that the activity for all electrodes at the end of a "service life" test dropped to approximately 54% of the initial value, being comparable with the results obtained for Pt-based cathodes. The SEM-EDS analysis of the electrodes after the "service life" test showed that the Ni-MoO2 is much more stable than the Ni-MoOx composite coating and could be promising replacement for the commercial cathode.",
publisher = "Pergamon-Elsevier Science Ltd, Oxford",
journal = "Electrochimica Acta",
title = "Service life test of non-noble metal composite cathodes for hydrogen evolution in sodium hydroxide solution",
pages = "130-124",
volume = "63",
doi = "10.1016/j.electacta.2011.12.078"
}

Jović, V. D., Lačnjevac, U., Jović, B. M.,& Krstajić, N. V.. (2012). Service life test of non-noble metal composite cathodes for hydrogen evolution in sodium hydroxide solution. in Electrochimica Acta
Pergamon-Elsevier Science Ltd, Oxford., 63, 124-130.
https://doi.org/10.1016/j.electacta.2011.12.078

Jović VD, Lačnjevac U, Jović BM, Krstajić NV. Service life test of non-noble metal composite cathodes for hydrogen evolution in sodium hydroxide solution. in Electrochimica Acta. 2012;63:124-130.
doi:10.1016/j.electacta.2011.12.078 .

Jović, Vladimir D, Lačnjevac, Uroš, Jović, Borka M, Krstajić, Nedeljko V, "Service life test of non-noble metal composite cathodes for hydrogen evolution in sodium hydroxide solution" in Electrochimica Acta, 63 (2012):124-130,
https://doi.org/10.1016/j.electacta.2011.12.078 . .

TY  - JOUR
AU  - Lačnjevac, Uroš
AU  - Jović, Borka M
AU  - Jović, Vladimir D
AU  - Krstajić, Nedeljko V
PY  - 2012
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5680
AB  - As a result of research on the non-noble metal-based composite electrocatalysts for the hydrogen evolution reaction (HER), the Ni-MoO2 composite coating was produced by electrodeposition from an NH4Cl and NiCl2 containing solution with suspended MoO2 powder particles, exhibiting almost the identical activity for the HER as the commercial cathode in conditions of industrial application and satisfactory mechanical stability. In this work, investigations were extended to the kinetics and mechanism of the HER on the Ni-MoO2 electrode in 8 M NaOH solution at 30 degrees C. The steady-state polarization curve for the HER was characterized by only one Tafel slope of -122 mV/dec. Kinetic parameters for the HER, as well as a contribution of surface roughness to the catalytic activity, were evaluated using an electrochemical impedance spectroscopy (EIS) technique. On the basis of the presented theoretical model for the faradaic impedance of the HER, the rate constants of the individual steps were determined by simulating both polarization and EIS experimental data. It was found that the reaction equally proceeds via the Volmer-Heyrovsky and Volmer-Tafel routes at lower overpotentials, while at higher overpotentials the Volmer-Heyrovsky pathway dominates the process with the Heyrovsky step being the rate determining step (rds). A comparison of intrinsic activities of the Ni-MoO2 composite and a flat Ni electrode proved that the combination of Ni and MoO2 produced a true catalytic effect for the HER.
PB  - Elsevier Science Sa, Lausanne
T2  - Journal of Electroanalytical Chemistry
T1  - Determination of kinetic parameters for the hydrogen evolution reaction on the electrodeposited Ni-MoO2 composite coating in alkaline solution
EP  - 40
SP  - 31
VL  - 677
DO  - 10.1016/j.jelechem.2012.05.004
ER  - 

@article{
author = "Lačnjevac, Uroš and Jović, Borka M and Jović, Vladimir D and Krstajić, Nedeljko V",
year = "2012",
abstract = "As a result of research on the non-noble metal-based composite electrocatalysts for the hydrogen evolution reaction (HER), the Ni-MoO2 composite coating was produced by electrodeposition from an NH4Cl and NiCl2 containing solution with suspended MoO2 powder particles, exhibiting almost the identical activity for the HER as the commercial cathode in conditions of industrial application and satisfactory mechanical stability. In this work, investigations were extended to the kinetics and mechanism of the HER on the Ni-MoO2 electrode in 8 M NaOH solution at 30 degrees C. The steady-state polarization curve for the HER was characterized by only one Tafel slope of -122 mV/dec. Kinetic parameters for the HER, as well as a contribution of surface roughness to the catalytic activity, were evaluated using an electrochemical impedance spectroscopy (EIS) technique. On the basis of the presented theoretical model for the faradaic impedance of the HER, the rate constants of the individual steps were determined by simulating both polarization and EIS experimental data. It was found that the reaction equally proceeds via the Volmer-Heyrovsky and Volmer-Tafel routes at lower overpotentials, while at higher overpotentials the Volmer-Heyrovsky pathway dominates the process with the Heyrovsky step being the rate determining step (rds). A comparison of intrinsic activities of the Ni-MoO2 composite and a flat Ni electrode proved that the combination of Ni and MoO2 produced a true catalytic effect for the HER.",
publisher = "Elsevier Science Sa, Lausanne",
journal = "Journal of Electroanalytical Chemistry",
title = "Determination of kinetic parameters for the hydrogen evolution reaction on the electrodeposited Ni-MoO2 composite coating in alkaline solution",
pages = "40-31",
volume = "677",
doi = "10.1016/j.jelechem.2012.05.004"
}

Lačnjevac, U., Jović, B. M., Jović, V. D.,& Krstajić, N. V.. (2012). Determination of kinetic parameters for the hydrogen evolution reaction on the electrodeposited Ni-MoO2 composite coating in alkaline solution. in Journal of Electroanalytical Chemistry
Elsevier Science Sa, Lausanne., 677, 31-40.
https://doi.org/10.1016/j.jelechem.2012.05.004

Lačnjevac U, Jović BM, Jović VD, Krstajić NV. Determination of kinetic parameters for the hydrogen evolution reaction on the electrodeposited Ni-MoO2 composite coating in alkaline solution. in Journal of Electroanalytical Chemistry. 2012;677:31-40.
doi:10.1016/j.jelechem.2012.05.004 .

Lačnjevac, Uroš, Jović, Borka M, Jović, Vladimir D, Krstajić, Nedeljko V, "Determination of kinetic parameters for the hydrogen evolution reaction on the electrodeposited Ni-MoO2 composite coating in alkaline solution" in Journal of Electroanalytical Chemistry, 677 (2012):31-40,
https://doi.org/10.1016/j.jelechem.2012.05.004 . .

TY  - JOUR
AU  - Krstajić, Nedeljko V
AU  - Lačnjevac, Uroš
AU  - Jović, Borka M
AU  - Mora, S
AU  - Jović, Vladimir D
PY  - 2011
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5647
AB  - In this work the procedure of the deposition of composite Ni-MoO2 coatings onto Ni mesh from the nickel chloride-ammonium chloride electrolyte containing suspended MoO2 powder particles, under simulated industrial deposition conditions for commercial cathodes, has been presented. The morphology of the obtained coatings was investigated by SEM, the composition by EDS and the phase composition by XRD techniques. The polarization characteristics for hydrogen evolution on the obtained Ni-MoO2 coatings were investigated in the 32 wt.% NaOH at 90 degrees C and compared with the one recorded for the commercial De Nora's coating (DN). It was shown that the best Ni-MoO2 coating posses identical polarization characteristics as the commercial one. By the cross section and XRD analysis of deposited samples it was confirmed that MoO2 powder particles were occluded by the Ni deposit, being uniformly distributed in the deposit.
PB  - Pergamon-Elsevier Science Ltd, Oxford
T2  - International Journal of Hydrogen Energy
T1  - Non-noble metal composite cathodes for hydrogen evolution. Part II: The Ni-MoO2 coatings electrodeposited from nickel chloride-ammonium chloride bath containing MoO2 powder particles
EP  - 6461
IS  - 11
SP  - 6450
VL  - 36
DO  - 10.1016/j.ijhydene.2011.02.106
ER  - 

@article{
author = "Krstajić, Nedeljko V and Lačnjevac, Uroš and Jović, Borka M and Mora, S and Jović, Vladimir D",
year = "2011",
abstract = "In this work the procedure of the deposition of composite Ni-MoO2 coatings onto Ni mesh from the nickel chloride-ammonium chloride electrolyte containing suspended MoO2 powder particles, under simulated industrial deposition conditions for commercial cathodes, has been presented. The morphology of the obtained coatings was investigated by SEM, the composition by EDS and the phase composition by XRD techniques. The polarization characteristics for hydrogen evolution on the obtained Ni-MoO2 coatings were investigated in the 32 wt.% NaOH at 90 degrees C and compared with the one recorded for the commercial De Nora's coating (DN). It was shown that the best Ni-MoO2 coating posses identical polarization characteristics as the commercial one. By the cross section and XRD analysis of deposited samples it was confirmed that MoO2 powder particles were occluded by the Ni deposit, being uniformly distributed in the deposit.",
publisher = "Pergamon-Elsevier Science Ltd, Oxford",
journal = "International Journal of Hydrogen Energy",
title = "Non-noble metal composite cathodes for hydrogen evolution. Part II: The Ni-MoO2 coatings electrodeposited from nickel chloride-ammonium chloride bath containing MoO2 powder particles",
pages = "6461-6450",
number = "11",
volume = "36",
doi = "10.1016/j.ijhydene.2011.02.106"
}

Krstajić, N. V., Lačnjevac, U., Jović, B. M., Mora, S.,& Jović, V. D.. (2011). Non-noble metal composite cathodes for hydrogen evolution. Part II: The Ni-MoO2 coatings electrodeposited from nickel chloride-ammonium chloride bath containing MoO2 powder particles. in International Journal of Hydrogen Energy
Pergamon-Elsevier Science Ltd, Oxford., 36(11), 6450-6461.
https://doi.org/10.1016/j.ijhydene.2011.02.106

Krstajić NV, Lačnjevac U, Jović BM, Mora S, Jović VD. Non-noble metal composite cathodes for hydrogen evolution. Part II: The Ni-MoO2 coatings electrodeposited from nickel chloride-ammonium chloride bath containing MoO2 powder particles. in International Journal of Hydrogen Energy. 2011;36(11):6450-6461.
doi:10.1016/j.ijhydene.2011.02.106 .

Krstajić, Nedeljko V, Lačnjevac, Uroš, Jović, Borka M, Mora, S, Jović, Vladimir D, "Non-noble metal composite cathodes for hydrogen evolution. Part II: The Ni-MoO2 coatings electrodeposited from nickel chloride-ammonium chloride bath containing MoO2 powder particles" in International Journal of Hydrogen Energy, 36, no. 11 (2011):6450-6461,
https://doi.org/10.1016/j.ijhydene.2011.02.106 . .

TY  - JOUR
AU  - Drljević-Đurić, Katica
AU  - Jović, Vladimir D.
AU  - Lačnjevac, Uroš
AU  - Avramov-Ivić, Milka
AU  - Petrović, Slobodan
AU  - Mijin, Dušan
AU  - Đorđević, S. B.
PY  - 2010
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1718
AB  - The oxidative behavior of antibiotic roxithromycin standard was studied at a gold electrode in 0.05 M NaHCO3 using cyclic linear sweep voltammetry and differential pulse voltammetry. It was found that the value of the oxidative peak of pure roxithromycin at 0.81 V vs. SCE in 0.05 M NaHCO3 at a scan rate of 50 mV s(-1) is a linear function of the concentration in a range 0.10006-0.654 mg cm(-3). It was also found that peak current density at 0.75 V vs. SCE at a scan rate of 2 mVs(-1), pulse amplitude of 25 mV and pulse time of 0.1 s exhibits linear dependence on the concentration of roxithromycin from 0.1006 to 0.476 mg cm(-3). Roxithromycin as a content of solid dosage form and urine was quantitatively determined and the obtained results were checked by HPLC.
PB  - Pergamon-Elsevier Science Ltd, Oxford
T2  - Electrochimica Acta
T1  - Voltammetric and differential pulse determination of roxithromycin
EP  - 52
IS  - 1
SP  - 47
VL  - 56
DO  - 10.1016/j.electacta.2010.09.067
ER  - 

@article{
author = "Drljević-Đurić, Katica and Jović, Vladimir D. and Lačnjevac, Uroš and Avramov-Ivić, Milka and Petrović, Slobodan and Mijin, Dušan and Đorđević, S. B.",
year = "2010",
abstract = "The oxidative behavior of antibiotic roxithromycin standard was studied at a gold electrode in 0.05 M NaHCO3 using cyclic linear sweep voltammetry and differential pulse voltammetry. It was found that the value of the oxidative peak of pure roxithromycin at 0.81 V vs. SCE in 0.05 M NaHCO3 at a scan rate of 50 mV s(-1) is a linear function of the concentration in a range 0.10006-0.654 mg cm(-3). It was also found that peak current density at 0.75 V vs. SCE at a scan rate of 2 mVs(-1), pulse amplitude of 25 mV and pulse time of 0.1 s exhibits linear dependence on the concentration of roxithromycin from 0.1006 to 0.476 mg cm(-3). Roxithromycin as a content of solid dosage form and urine was quantitatively determined and the obtained results were checked by HPLC.",
publisher = "Pergamon-Elsevier Science Ltd, Oxford",
journal = "Electrochimica Acta",
title = "Voltammetric and differential pulse determination of roxithromycin",
pages = "52-47",
number = "1",
volume = "56",
doi = "10.1016/j.electacta.2010.09.067"
}

Drljević-Đurić, K., Jović, V. D., Lačnjevac, U., Avramov-Ivić, M., Petrović, S., Mijin, D.,& Đorđević, S. B.. (2010). Voltammetric and differential pulse determination of roxithromycin. in Electrochimica Acta
Pergamon-Elsevier Science Ltd, Oxford., 56(1), 47-52.
https://doi.org/10.1016/j.electacta.2010.09.067

Drljević-Đurić K, Jović VD, Lačnjevac U, Avramov-Ivić M, Petrović S, Mijin D, Đorđević SB. Voltammetric and differential pulse determination of roxithromycin. in Electrochimica Acta. 2010;56(1):47-52.
doi:10.1016/j.electacta.2010.09.067 .

Drljević-Đurić, Katica, Jović, Vladimir D., Lačnjevac, Uroš, Avramov-Ivić, Milka, Petrović, Slobodan, Mijin, Dušan, Đorđević, S. B., "Voltammetric and differential pulse determination of roxithromycin" in Electrochimica Acta, 56, no. 1 (2010):47-52,
https://doi.org/10.1016/j.electacta.2010.09.067 . .