方波动电流扫描的响应函数及其应用

中国腐蚀与防护学报

1989, Vol. 9

Issue (1): 43-49

研究报告

本期目录 | 过刊浏览

方波动电流扫描的响应函数及其应用

毕新民;曹楚南

中国科学院金属腐蚀与防护研究所;中国科学院金属腐蚀与防护研究所

THE RESPONSE EQUATION OF SQUARE-WAVE GALVANODYNAMIC SCANNING AND ITS APPLICATION

Bi Xinmin and Cao Chunan (Institute of Corrosion and Protection of Metals;Academia Sinica)

全文: PDF(403 KB)

摘要: 应用 Laplace 变换分析求得了在线性极化区内向金属电极施加方波动电流扫描的响应函数方程.它在 E～i 座标系中为两条长度相等的平行线。用它可以方便地测量 R_P、C 和 R_S 等电化学参数而不受溶液电阻的影响。本方法对弛豫时间常数较大的体系尤为适用。

Abstract：The response equation of the polarization of electrode under the condi- tion of galvanodynamic scanning in linear polarization region was derived from which another equation was obtained as follows: R_S=(△h)/(2i_0) ((i_0)/(△E))=(C/λ+1/(2R_p)) It is shown that based on this formula,plotted with (i_0)/(△E) against λ~(-1),a technique can be developed to measure the polarization resistance Rp and interracial capacitance C of the electrode without need of elimi- nating the influence of solution resistance R_S,and R_S can be determined as well.It is pointed out that this transient technique is very useful for those electrode systems with rather large time constants.Examples of its application are presented.

收稿日期: 1989-02-25

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引用本文:

毕新民;曹楚南. 方波动电流扫描的响应函数及其应用[J]. 中国腐蚀与防护学报, 1989, 9(1): 43-49.
. THE RESPONSE EQUATION OF SQUARE-WAVE GALVANODYNAMIC SCANNING AND ITS APPLICATION. J Chin Soc Corr Pro, 1989, 9(1): 43-49.

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https://www.jcscp.org/CN/ 或 https://www.jcscp.org/CN/Y1989/V9/I1/43

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