Reaction of hydrogen evolution on Co−Mo (W) and Ni−Re electrolytic alloys in alkaline media


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The mathematical processing of experimental data is performed for the hydrogen evolution reaction (HER) in alkaline media on Co−Mo and Ni−Re cathodes obtained by electrodeposition. It is shown that it is necessary to take into account the possibility of occurrence of the stages of discharge (Volmer), electrochemical desorption (Heyrovský), and recombination of adsorbed hydrogen atoms (Tafel) in HER description on Co−Mo electrodes. Hydrogen evolution on Ni−Re cathodes is well modeled under the assumption of the Volmer–Heyrovský route (discharge and the following electrochemical desorption), but the contribution of diffusion of Hat into the cathode material is significant in the range of high cathodic current densities.

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V. Kuznetsov

Mendeleev Russian University of Chemical Technology

编辑信件的主要联系方式.
Email: vitkuzn1@mail.ru
俄罗斯联邦, Miusskaya pl. 9, A-47, Moscow, 125047

Yu. Gamburg

Frumkin Institute of Physical Chemistry and Electrochemistry

Email: vitkuzn1@mail.ru
俄罗斯联邦, Leninskii pr. 31, Moscow, 119071

M. Zhalnerov

Mendeleev Russian University of Chemical Technology

Email: vitkuzn1@mail.ru
俄罗斯联邦, Miusskaya pl. 9, A-47, Moscow, 125047

V. Zhulikov

Frumkin Institute of Physical Chemistry and Electrochemistry

Email: vitkuzn1@mail.ru
俄罗斯联邦, Leninskii pr. 31, Moscow, 119071

R. Batalov

Mendeleev Russian University of Chemical Technology

Email: vitkuzn1@mail.ru
俄罗斯联邦, Miusskaya pl. 9, A-47, Moscow, 125047

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