ISSN 0005-2531 (Print) ISSN 2522-1841 (Online)
INVESTIGATION OF ELECTROCATALYTIC ACTIVITY OF Ni–Mo THIN FILMS FOR WATER ELECTROLYSIS
U.M.Gurbanova, R.G.Huseynova, N.R.Abishova, E.F.Ismaylova Orudjeva, M.T.Abbasov, Ya.A.Nuriyev, A.Sh.Aliyev, D.B.Tagiyev

The paper presents data on the study of the electrocatalytic properties of Ni–Mo thin films in neutral and alkaline media, obtained as a result of electrochemical synthesis. Comparative characteristics of the electrocatalytic properties of deposited Ni-Mo films on various substrates and different compositions with the catalytic activity of Ni, Pt and St-3 were determined by the method of recording linear polarization curves and determining the slope of the Tafel curves. The highest catalytic activity was exhibited by Ni73.5Mo13.3O13.2 thin films on a nickel substrate that were not annealed. The dependence of the microhardness of the films on their composition was determined, and Ni–Mo films with a Mo content of 38% had the highest microhardness. It has been established that the corrosion resistance of films depends on the content of molybdenum in them, and an increase in its content in alloys increases their corrosion resistance, but the catalytic activity of the films decreases

doi.org/10.32737/0005-2531-2022-4-27-32

 

Keywords : electrocatalysis, electrodeposition, molybdenum, nickel, hydrogen
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