Electrochemical Behavior of Electrodeposited Ni-P Coatings in Acidic Solutions

Dolgikh, O.V.; Sotskaya, N.V.; Sapronova, L.V.

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Title	Electrochemical Behavior of Electrodeposited Ni-P Coatings in Acidic Solutions
Authors	Dolgikh, O.V. Sotskaya, N.V. Sapronova, L.V.
ORCID
Keywords	Ni-P Coatings Anticorrosion Ability Catalytic Activity Hydrogen Evolution Reaction Mechanism
Type	Conference Papers
Date of Issue	2012
URI	http://essuir.sumdu.edu.ua/handle/123456789/35466
Publisher	Sumy State University
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Citation	Dolgikh, O. V. Electrochemical Behavior of Electrodeposited Ni-P Coatings in Acidic Solutions / O. V. Dolgikh, N. V. Sotskaya, L. V. Sapronova // Nanomaterials: Applications & Properties (NAP-2012) : 2-nd International conference, Alushta, the Crimea, September 17-22, 2012 / Edited by: A. Pogrebnjak. - Sumy : Sumy State University, 2012. - V. 1, No4. - 04FCNF04
Abstract	The paper is devoted to the investigation of cathodic and anodic behavior of electrodeposited Ni-P alloys of different composition in H2SO4 solutions. It was established that increase of phosphorous content enhances anticorrosion ability of Ni-P coatings and decreases their catalytic activity toward to hydrogen evolution reaction. The most probable mechanism of this reaction was suggested on the basis of analysis of experimental data. It assumes that at low overpotentials hydrogen evolution proceeds by Volmer- Heyrovsky route with limiting step of charge transfer. At higher potentials Volmer-Tafel mechanism with slow chemical recombination step takes place. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/35466
Appears in Collections:	Наукові видання (ЕлІТ)