高等学校化学学报 ›› 1996, Vol. 17 ›› Issue (11): 1714.

• 论文 • 上一篇    下一篇

有限线性扩散区域内EC'反应催化电流

吴志斌1, 董绍俊2, 吴浩青3   

  1. 1. 同济大学化学系, 上海, 200092;
    2. 中国科学院长春应用化学研究所;
    3. 复旦大学化学系
  • 收稿日期:1995-10-30 出版日期:1996-11-24 发布日期:1996-11-24
  • 通讯作者: 吴志斌,男,32岁,博士,副教授.
  • 作者简介:吴志斌,男,32岁,博士,副教授.
  • 基金资助:

    中国科学院长春应用化学研究所电分析化学开放实验室资助

Catalytic Current for EC' Reaction with Finite Linear Diffusion Space

WU Zhi-Bin1, DONG Shao-Jun2, WU Hao-Qing3   

  1. 1. Department of Chemistry, Tongji University, Shanghai, 200092;
    2. Changchun Institute of Applied Chemistry;
    3. Department of Chemistry, Fudan University
  • Received:1995-10-30 Online:1996-11-24 Published:1996-11-24

关键词: 有限线性扩散空间, EC'反应, 催化电流

Abstract: In this paper,equations for chronoamperometric current and linear sweep voltammetry are derived for the case where the EC'catalytic reation occurs at an electrode with finite linear diffusion space.The analytical expression for chronoamperometric current is given and voltammogram is obtained by numerical calculation.The voltammogram varies with both the kinetic parameter,P=kfCZ*Fd2/D, and the scan rate parameter,w=nFvd2/RTD,where the kf is the rate constant of the catalytic reaction,CZ*F is the bulk concentration of catalyst in film,d is the thick of film,v is the potential sweep rate.Others have the normal meaning.The dependence of the current potential curves on these two parameters is discussed.From this dependence,a concept of quasi-steady-state catalytic current is developed.

Key words: Finite Linear diffusion space, EC' catalytic reaction, Catalytic current

TrendMD: