High Efficiency Electrodes for Alkaline Electrolysis of Water

The paper presents a new porous coating of electrodes for water electrolyzers with an alkaline electrolyte, as well as methods for its modification with catalysts for the reaction of hydrogen and oxygen evolution. The coating is formed from a suspension of nickel-cobalt powder in an electroplating b...

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Bibliographic Details
Published inRussian journal of applied chemistry Vol. 93; no. 8; pp. 1146 - 1151
Main Authors Kuleshov, V. N., Kuleshov, N. V., Kurochkin, S. V.
Format Journal Article
LanguageEnglish
Published Moscow Pleiades Publishing 01.08.2020
Springer Nature B.V
Subjects
Acicular powders
Acicular structure
Applied Electrochemistry and Metal Corrosion Protection
Butanediol
Chemical evolution
Chemistry
Chemistry and Materials Science
Chemistry/Food Science
Coated electrodes
Cobalt powders
Electrode materials
Electrolysis
Electroplating
Industrial Chemistry/Chemical Engineering
Nickel
Nickel plating
Plating baths
Thermal decomposition
thermal decomposition of metal formates in an environment of polyhydric alcohols
alkaline electrolysis
porous nickel-cobalt coating of electrodes
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Summary:The paper presents a new porous coating of electrodes for water electrolyzers with an alkaline electrolyte, as well as methods for its modification with catalysts for the reaction of hydrogen and oxygen evolution. The coating is formed from a suspension of nickel-cobalt powder in an electroplating bath for applying a nickel-cobalt coating and is characterized by an acicular structure and a developed specific surface. Nickel-cobalt powder is obtained by thermal decomposition of mixed nickel-cobalt formate in 1,4-butanediol, which is a modifying additive for nickel plating bath. The results of studies of new electrode materials by physicochemical and electrochemical methods are reported.
ISSN:1070-4272
1608-3296
DOI:10.1134/S1070427220080066