化学学报 ›› 1992, Vol. 50 ›› Issue (7): 672-676. 上一篇    下一篇

研究论文

交流示波极谱法中i~f-E曲线的研究 8:"电极/溶液"界面动态双电层微分电容的快速测量

沈雪明;陈洪渊;高鸿   

  1. 南京大学化学系
  • 发布日期:1992-07-15

Investigations on i~f-E curve in cyclic derivative chronopotentiometry. pt.8:measurement of the dynamic double-layer capacitence

SHEN XUEMING;CHEN HONGYUAN;GAO HONG   

  • Published:1992-07-15

"电极/溶液"界面动在记双电层微分电容是电极过程动力学中一个重要的物理量,但其测量方法,多数仍停留在对逐一测定的数据点进行作图分析上.本文以i~f-E曲线上电流峰的理论公式为基础,提出了一个快速测量"电极/溶液"界面动态双层微分电容的新方法.

关键词: 示波极谱法, 曲线, 微分电容, 电极-溶液界面

Several methods for measuring the dynamic double-layer capacitance, i.e. the double-layer capacitance in the presence of faradaic process have been reported, but most of them require a graphical anal. of individually obtained data points. Because the importance of the dynamic double-layer capacitance in electrode kinetics, a new method for measuring the dynamic double-layer capacitance automatically has been proposed on the basis of the fundamental equations of vf-E curve.

Key words: OSCILLOSCOPIC POLAROGRAPHY, CURVE, DIFFERENTIAL CAPACITY

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