Exploring the Influence of the Nickel Oxide Species on the Kinetics of Hydrogen Electrode Reactions in Alkaline Media | Sciact - CRIS-system of Boreskov Institute of Catalysis

Exploring the Influence of the Nickel Oxide Species on the Kinetics of Hydrogen Electrode Reactions in Alkaline Media Full article

Conference

EuropaCat-XII: 12th European Congress on Catalysis “Catalysis: Balancing the use of fossil and renewable resources”
30 Aug - 4 Sep 2015 , Казань

Journal

Topics in Catalysis
ISSN: 1022-5528 , E-ISSN: 1572-9028

Output data

Year: 2016, Volume: 59, Number: 15, Pages: 1319-1331 Pages count : 13 DOI: 10.1007/s11244-016-0657-0

Tags

Alkaline solutions, Hydrogen oxidation and evolution reactions, Kinetic modeling, Nickel, Nickel oxide, X-ray photoelectron spectroscopy

Authors

Oshchepkov Alexandr G. ^1,2,3 , Bonnefont Antoine ³ , Saveleva Viktoriia A. ² , Papaefthimiou Vasiliki ² , Zafeiratos Spyridon ² , Pronkin Sergey N. ² , Parmon Valentin N. ^2,4 , Savinova Elena R. ²

Affiliations

1	Boreskov Institute of Catalysis, Novosibirsk, Russia 630090
2	Institut de Chimie et Proce´de´s pour l’Energie, l’Environnement et la Sante´, UMR 7515 CNRS-University of Strasbourg, 67087 Strasbourg Cedex, France
3	Institut de Chimie de Strasbourg, UMR 7177 CNRSUniversity of Strasbourg, 67070 Strasbourg, France
4	Novosibirsk State University, Novosibirsk, Russia 630090

Funding (4)

1	Federal Agency for Scientific Organizations	V.46.4.4.
2	Russian Foundation for Basic Research	16-33-00331
3	European Commission
4	Government of France

The influence of the oxidation of Ni electrodes on the kinetics of the hydrogen oxidation (HOR) and evolution reactions (HER) has been explored by combining an experimental cyclic voltammetry study, microkinetic modeling and X-ray photoelectron spectroscopic analysis. Almost 10 times enhancement of the activity of Ni in the HOR/HER has been observed after its oxidation under the contact with air at ambient conditions and assigned to the presence of NiO species on the surface of metallic Ni. The experimental cyclic voltammetry curves have been analyzed with the help of kinetic model in order to shed light on the mechanism of the HOR/HER for two types of Ni electrodes and its dependence on the presence of NiO on the surface of the electrode. The main features of the experimental current-potential curves can be reproduced with a kinetic model assuming that the free energy of the adsorbed hydrogen intermediate is increased and that the kinetics of the Volmer step is enhanced in the presence of nickel oxide species. The kinetic model provides evidence for the switching from the Heyrovsky–Volmer mechanism on metallic Ni to Tafel–Volmer mechanism on the activated electrode, where surface oxide species co-exist with metal Ni sites.

Oshchepkov A.G. , Bonnefont A. , Saveleva V.A. , Papaefthimiou V. , Zafeiratos S. , Pronkin S.N. , Parmon V.N. , Savinova E.R.
Exploring the Influence of the Nickel Oxide Species on the Kinetics of Hydrogen Electrode Reactions in Alkaline Media
Topics in Catalysis. 2016. V.59. N15. P.1319-1331. DOI: 10.1007/s11244-016-0657-0 WOS Scopus РИНЦ ANCAN OpenAlex

Published online:	Jul 21, 2016
Published print:	Sep 1, 2016

Web of science:	WOS:000382849100007
Scopus:	2-s2.0-84984865350
Elibrary:	26695461
Chemical Abstracts:	2016:1216208
Chemical Abstracts (print):	165:304949
OpenAlex:	W2505688529

DB	Citing
Web of science	85
Scopus	88
Elibrary	81
OpenAlex	95