高等学校化学学报

高等学校化学学报 ›› 1997, Vol. 18 ›› Issue (1): 29.

• 论文 • 上一篇    下一篇

靛红掺杂聚吡咯膜修饰电极的电荷传输

杨春和, 李一峻, 董绍俊   

  1. 中国科学院长春应用化学研究所电分析化学开放实验室, 长春, 130022
  • 收稿日期:1996-01-04 出版日期:1997-01-24 发布日期:1997-01-24
  • 通讯作者: 董绍俊
  • 作者简介:杨春和, 男, 28岁, 博士研究生.
  • 基金资助:

    国家自然科学基金

Charge Transport of Indigo-Carmine Doped Polypyrrole

YANG Chun-He, LI Yi-Jun, DONG Shao-Jun   

  1. Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chenlistry, Chinese Academy of Sciences, Changchun, 130022
  • Received:1996-01-04 Online:1997-01-24 Published:1997-01-24

PDF (PC)

被引次数

12

摘要： 利用交流阻抗法研究了靛红掺杂聚吡咯膜内的电荷传输问题,通过非线性最小二乘法拟合,得出了体系的等效电路,并计算出其电行扩散系数和异相电子传递反应速率常数.实验结果表明,随着膜厚的增加,活性点增多,异相电子传递反应速率常数增大,同时表观扩散系数也增大.

关键词: 电荷传输, 聚吡咯, 交流阻抗法

Abstract: Charge transport in polypyrrole doped with indigo-carmine was investigated by the method of electrochemical alternating current impedance.By the nonllnear least square fitting, the equivalent circuit and parameter of each component are obtained.The apparent diffusion coefficients and heterogeneous electron transfer constants are given.It is found that, along with the increasing of film thickness, Dapp and ko increase also.

Key words: Charge transport, Polypyrrole, AC impedance

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