应用化学 ›› 1983, Vol. 0 ›› Issue (1): 87-93.

• 研究论文 • 上一篇    下一篇

二氧化铅电极上氧发生反应的交流阻抗研究

高效岳, 时有林, 张浩瑜, 王世全, 张振宇   

  1. 中国科学院长春应用化学研究所
  • 收稿日期:1982-12-20 修回日期:1983-06-06 出版日期:1983-12-10 发布日期:1983-12-10

STUDY ON THE REACTION OF OXYGEN EVOLUTION ON PbO2 ELECTRODE BY MEANS OF A.C.IMPEDANOE MEASUREMENT

Gao Xiaoye, Shi Youlin, Zhang Haoyu, Wang Shiquan, Zhang Zhenyu   

  1. Changchun Institute of Applied Ch emistry, Academia Sinica
  • Received:1982-12-20 Revised:1983-06-06 Published:1983-12-10 Online:1983-12-10

摘要: 测定了二氧化铅电极上氧发生反应的交流阻抗。用曲线拟合法解析组抗谱,求得了反应电阻Rt、吸附电阻Ra、双层电容Cd、吸附电容Ca的值。认为(OH)吸+H2O→(O)吸+H3O++e-是氧发生反应的控制步骤。讨论了CdCa与OH-离子浓度变化的关系。

Abstract: The anodic reaction of oxygen evolution on PbO2 electrode was studied by A. C. impedance measurement. The Faradaic. resistance Rt,double layer capacitance Cd adsorption resistance Ra and adsorption capacitance Ca were determined by analyzing the impedance spectra with microcomputer curve-fitting method. The rate-controlling step of the reaction was considered to be (OH)ad+H2O→(O)ad+H3O+e-. The relation between Cd, Ca.and OH-ion concentration was discussed in view of the adsorption effect.