The electrocatalytic activity of Ni(II)/Ni(III) oxide films in alkaline solutions

R. E. CARBONIO; V. A. MACAGNO; A. J. ARVÍA

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Lugar: Amsterdam; Año: 1983 vol. 147 p. 139 - 139

p style="TEXT-ALIGN: justify; LINE-HEIGHT: normal; MARGIN: 0cm 0cm 0pt; TEXT-AUTOSPACE: ; mso-layout-grid-align: none" class="MsoNormal">The reactions involved in the electroreduction and electroformation of 02 on electrodes prepared by precipitation of nickel hydroxide on different conducting substrates (platinum or vitreous carbon) in alkaline solutions are investigated. The catalytic activity of these electrodes for the 02 evolution reaction is independent of the nature of the substrate but depends on the ageing conditions of nickel hydroxide. The mechanisms for the 02 evolution reaction are explained through the p