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化学学报
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化学学报 ›› 1993, Vol. 51 ›› Issue (3): 234-238. 上一篇    下一篇

研究论文

圆环电极上计时电流理论及其验证

吴志斌;张祖训   

  1. 南京大学化学系
  • 发布日期:1993-03-15

The theory of chronoamperometric current at ring electrode and its experimental verification

WU ZHIBIN;ZHANG ZUXUN   

  • Published:1993-03-15

PDF

578

被引次数

6

本文推导得到了圆环电极上计时电流方程式。该式形式简单、计算方便、适用于任何电极半径和时间。用微金环电极在K4Fe(CN)6-KCl体系中对该理论进行验证,实验结果与理论十分符合。

关键词: 电极, 氯化钾, 铁氰化钾, 计时电流, 电化学研究

The equation of a chronoamperometric current at a ring electrode is presented. It is a simple anal. expression which is easily calculated and fit for any radius of ring electrode and any time. To examine the validity of the theory, experimental studies with K4Fe(ON)6 in 0.5 mol/cm3 KCl solution were carried out at the Au micro-ring electrode. The experimental values are in good agreement with the theor. ones.

Key words: ELECTRODE, POTASSIUM CHLORIDE, POTASSIUM FERRICYANIDE

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