接着在PVP膜上的PdCl_4^（2－）／PdCl_6^（2－）体系电子自交换反

Determination of Self-exchange Rate Constants for PdCl_4￣(2-)/ PdCl_6￣(2-) Couple Bound to PVP Modified Electrode

本文采用旋转圆盘电极法和线性动电势扫描法测定了ＰｄＣｌ／ＰｄＣｌ体系电子自交换反应速率常数ｋｅｘ，研究了Ｋ２ＰｄＣＩ６溶液浓度、ＰＶＰ膜厚度以及不同支持电解质对ｋｅｘ的影响。

PdCl_4￣2- may be incorporated in protonated PVP film. The self-exchange rate constants forPdCl_4￣2-/ PdCl_6￣2- couple were measured by means of rotating disk electrode andpotentiodynamic sweep method. At each fixed thickness of PVP film coatings, as the concentration of solution of PdCl_6￣2- increased, the rate constants correspond to the same value. However,the resulting values of the rate constants are affected strongly by changes in the thickness ofPVP. The effects of changes in the nature of supporting electrolytes were also studied.