Kinetics of hydrogen evolution reaction in alkaline electrolysis on a Ni cathode in the presence of Ni-Co-Mo based ionic activators
Samo za registrovane korisnike
2015
Autori
Nikolić, Vladimir M.Maslovara, Slađana Lj.
Tasić, Gvozden S.
Brdarić, Tanja
Laušević, Petar
Radak, Bojan
Marčeta Kaninski, Milica
Članak u časopisu (Objavljena verzija)
Metapodaci
Prikaz svih podataka o dokumentuApstrakt
This paper presents investigations on the influence of in-situ ionic activation using combination of three D-metals: Ni, Co and Moon the hydrogen evolution reaction (HER) mechanism and kinetics. Polarization measurements were performed to obtain kinetic parameters for the HER and the results are presented to show Tafel slopes, exchange current densities and apparent energy of activation. The values of the kinetic parameters confirm the existence of two Tafel slopes, in the case of NiCoMo based ionic activators (i.a.) in the investigated temperature range, with very high values of the exchange current density. Electrochemical impedance spectroscopy measurements were employed to further investigate the origin of the obtained electrocatalytic effect on the HER. The measurements were performed at several overpotentials and temperatures. It was found that co-deposition of Ni, Co and Mo species on the Ni cathode results in a large number of active sites for hydrogen adsorption, and a synerge...tic effect giving electronic structure suitable for the HER, are the main factors contributing to the enhanced HER kinetics. It was shown that EIS measurements had a crucial role in determining the HER mechanism, especially with the complex in-situ activation of the alkaline electrolysis. (C) 2015 Published by Elsevier B.V.
Ključne reči:
Hydrogen evolution reactionl / In-situ activation / Ionic activator / Alkaline electrolyzerIzvor:
Applied Catalysis. B: Environmental, 2015, 179, 88-94Finansiranje / projekti:
- Vodonična energija - razvoj novih materijala: elektrolitičko dobijanje vodonika, vodonične gorivne ćelije, izotopski efekti (RS-MESTD-Basic Research (BR or ON)-172045)
DOI: 10.1016/j.apcatb.2015.05.012
ISSN: 0926-3373; 1873-3883
WoS: 000359873800011
Scopus: 2-s2.0-84929457529
Kolekcije
Institucija/grupa
VinčaTY - JOUR AU - Nikolić, Vladimir M. AU - Maslovara, Slađana Lj. AU - Tasić, Gvozden S. AU - Brdarić, Tanja AU - Laušević, Petar AU - Radak, Bojan AU - Marčeta Kaninski, Milica PY - 2015 UR - https://vinar.vin.bg.ac.rs/handle/123456789/705 AB - This paper presents investigations on the influence of in-situ ionic activation using combination of three D-metals: Ni, Co and Moon the hydrogen evolution reaction (HER) mechanism and kinetics. Polarization measurements were performed to obtain kinetic parameters for the HER and the results are presented to show Tafel slopes, exchange current densities and apparent energy of activation. The values of the kinetic parameters confirm the existence of two Tafel slopes, in the case of NiCoMo based ionic activators (i.a.) in the investigated temperature range, with very high values of the exchange current density. Electrochemical impedance spectroscopy measurements were employed to further investigate the origin of the obtained electrocatalytic effect on the HER. The measurements were performed at several overpotentials and temperatures. It was found that co-deposition of Ni, Co and Mo species on the Ni cathode results in a large number of active sites for hydrogen adsorption, and a synergetic effect giving electronic structure suitable for the HER, are the main factors contributing to the enhanced HER kinetics. It was shown that EIS measurements had a crucial role in determining the HER mechanism, especially with the complex in-situ activation of the alkaline electrolysis. (C) 2015 Published by Elsevier B.V. T2 - Applied Catalysis. B: Environmental T1 - Kinetics of hydrogen evolution reaction in alkaline electrolysis on a Ni cathode in the presence of Ni-Co-Mo based ionic activators VL - 179 SP - 88 EP - 94 DO - 10.1016/j.apcatb.2015.05.012 ER -
@article{ author = "Nikolić, Vladimir M. and Maslovara, Slađana Lj. and Tasić, Gvozden S. and Brdarić, Tanja and Laušević, Petar and Radak, Bojan and Marčeta Kaninski, Milica", year = "2015", abstract = "This paper presents investigations on the influence of in-situ ionic activation using combination of three D-metals: Ni, Co and Moon the hydrogen evolution reaction (HER) mechanism and kinetics. Polarization measurements were performed to obtain kinetic parameters for the HER and the results are presented to show Tafel slopes, exchange current densities and apparent energy of activation. The values of the kinetic parameters confirm the existence of two Tafel slopes, in the case of NiCoMo based ionic activators (i.a.) in the investigated temperature range, with very high values of the exchange current density. Electrochemical impedance spectroscopy measurements were employed to further investigate the origin of the obtained electrocatalytic effect on the HER. The measurements were performed at several overpotentials and temperatures. It was found that co-deposition of Ni, Co and Mo species on the Ni cathode results in a large number of active sites for hydrogen adsorption, and a synergetic effect giving electronic structure suitable for the HER, are the main factors contributing to the enhanced HER kinetics. It was shown that EIS measurements had a crucial role in determining the HER mechanism, especially with the complex in-situ activation of the alkaline electrolysis. (C) 2015 Published by Elsevier B.V.", journal = "Applied Catalysis. B: Environmental", title = "Kinetics of hydrogen evolution reaction in alkaline electrolysis on a Ni cathode in the presence of Ni-Co-Mo based ionic activators", volume = "179", pages = "88-94", doi = "10.1016/j.apcatb.2015.05.012" }
Nikolić, V. M., Maslovara, S. Lj., Tasić, G. S., Brdarić, T., Laušević, P., Radak, B.,& Marčeta Kaninski, M.. (2015). Kinetics of hydrogen evolution reaction in alkaline electrolysis on a Ni cathode in the presence of Ni-Co-Mo based ionic activators. in Applied Catalysis. B: Environmental, 179, 88-94. https://doi.org/10.1016/j.apcatb.2015.05.012
Nikolić VM, Maslovara SL, Tasić GS, Brdarić T, Laušević P, Radak B, Marčeta Kaninski M. Kinetics of hydrogen evolution reaction in alkaline electrolysis on a Ni cathode in the presence of Ni-Co-Mo based ionic activators. in Applied Catalysis. B: Environmental. 2015;179:88-94. doi:10.1016/j.apcatb.2015.05.012 .
Nikolić, Vladimir M., Maslovara, Slađana Lj., Tasić, Gvozden S., Brdarić, Tanja, Laušević, Petar, Radak, Bojan, Marčeta Kaninski, Milica, "Kinetics of hydrogen evolution reaction in alkaline electrolysis on a Ni cathode in the presence of Ni-Co-Mo based ionic activators" in Applied Catalysis. B: Environmental, 179 (2015):88-94, https://doi.org/10.1016/j.apcatb.2015.05.012 . .