Rate limiting steps of charge transfer at conducting polymers

被引：2

作者：

El Sana, S ^{[1
]}

Gabrielli, C ^{[1
]}

Perrot, H ^{[1
]}

机构：

[1] Univ Paris 06, CNRS, UPR 15, F-75252 Paris 05, France

来源：

RUSSIAN JOURNAL OF ELECTROCHEMISTRY | 2004年 / 40卷 / 03期

关键词：

polypyrrole; quartz microbalance; electrochemical impedance; ac electrogravimetry;

D O I：

10.1023/B:RUEL.0000019663.27800.9e

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The rate limiting steps of the charge transfer between the solution and a conducting polymer during the switching between oxidation states are investigated by means of ac electrogravimetry.. It is shown that the polymer requires anion entry and cation and solvent expulsion to compensate for the positive charges formed during the polymer oxidation. The insertion/expulsion laws, the diffusion coefficients of the species, and the atomic weights of the inserted/expelled species are determined.

引用

收藏

页码：267 / 272

页数：6

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