Chinese Journal of Applied Chemistry ›› 1998, Vol. 0 ›› Issue (6): 74-76.

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Preparation of Oxygen Evolution Electrode from Spinel NiCo2O4 by Composite-Plating Technique

Cai Naicai, Zhang Keli, Yuan Jibing, Liu Yong, Sun Jutang   

  1. Department of Chemistry, Wuhan University, Wuhan 430072
  • Received:1998-04-15 Revised:1998-09-22 Published:1998-12-10 Online:1998-12-10

Abstract: The Ni-NiCo2O4 composite electrodes for oxygen evolution were prepared by composite electroplating technique. In the course of plating the particles of spinel NiCo2O4/(ca.4 μm) were easily codeposited on the nickel deposited electrode forming a high rough Ni-NiCo2O4 composite plating layer. The Ni-NiCo2O4 composite electrodes exhibited low oxygen overvoltage and good stability and had two Tafel slopes smaller than that of pure Ni plating electrode.

Key words: spinel NiCo2O4, composite electroplating, oxygen evolution electrode