中华医学超声杂志

应用化学 ›› 1998, Vol. 0 ›› Issue (1): 68-70.

• 研究论文 • 上一篇    下一篇

方波伏安法评估聚苯胺膜修饰电极的电荷传输速度

杨春和, 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:1997-04-08 修回日期:1997-10-09 出版日期:1998-02-10 发布日期:1998-02-10

Evaluation of Charge Transport in Polyaniline by Square Wave Voltammetry

Yang Chunhe, Dong Shaojun   

  1. Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022
  • Received:1997-04-08 Revised:1997-10-09 Published:1998-02-10 Online:1998-02-10

PDF

412

被引次数

2

摘要： 研究导电聚合物的电荷传输机制与速度对于其在应用方面的研究极为重要[1].例如在电池的研究中,充放电的速度决定于导电聚合物的电荷传输速度;在电致变色器件的研究中,响应时间也是决定于导电聚合物在氧化还原态间的变化速度,即电荷传输速度.

关键词: 聚苯胺, 电荷传输, 方波伏安法, 化学修饰电极

Abstract: The charge transport rate in polyaniline, which was obtained through electropoly-merization by cyclic voltammetry, was evaluated by the square wave voltammetry and thetime of scale of voltammetry was defined by AC impedance technique.The results show thatthe charge transport in polyaniline is controlled by diffusion.The Dapp and k0 of the redox re-action are determined by COOL algorithm by means of the fast scanning and sampling of thesquare wave voltammetry.

Key words: polyaniline, charge transport, square wave voltammetry, chemically modified electrode

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