Acta Phys. -Chim. Sin. ›› 1990, Vol. 6 ›› Issue (02): 159-162.doi: 10.3866/PKU.WHXB19900207

• ARTICLE • Previous Articles     Next Articles

Voltammetric Characteristics of RuO2 Electrode

Cui Cheng-Qiang; Zhang Ying-Zhou; Zhou Shao-Min   

  1. Department of Chemistry and Institute of Physical Chemistry, Xiamen University
  • Received:1988-07-05 Revised:1989-03-22 Published:1990-04-15
  • Contact: Cui Cheng-Qiang

Abstract: The voltammetric characteristics of RuO_2 electrode has been studied by means of cyclic voltammetry and pulse polarography. In the potential range of 0.2-0.8 V, there are two redox reactions as follows:
but not one redox reaction to turn Ru~(3+) into Ru~(4+).
The oxygen-deficient structures are the active sites whose disappearance results in the deactivation of the electrode.