Influence of Nickel Oxide Transformation Reaction on Oxygen Evolution Kinetics as Ascertained by Temperature Effects
- 1 May 1980
- journal article
- Published by The Electrochemical Society in Journal of the Electrochemical Society
- Vol. 127 (5) , 1060-1063
- https://doi.org/10.1149/1.2129817
Abstract
The evolution reaction and nickel oxide transformation reactions were investigated on Ni electrodes in as a function of temperature using steady‐state and cyclic voltammetric techniques, respectively. A change in the valence state of the oxide occurs in the region of oxygen evolution at temperatures above 150°C. The previously reported change in Tafel slope at elevated temperatures is explained on the basis of the role played by the transformation of surface oxides, and its effect on the kinetics of the OER.Keywords
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