高等学校化学学报 ›› 2000, Vol. 21 ›› Issue (9): 1372-1374.

• 研究快报 • 上一篇    下一篇

羧基化单层碳纳米管修饰电极的电化学表征及其电催化作用

罗红霞, 施祖进, 李南强, 顾镇南, 庄乾坤   

  1. 北京大学化学与分子工程学院, 北京 100871
  • 收稿日期:2000-02-21 出版日期:2000-09-24 发布日期:2000-09-24
  • 通讯作者: 李南强(1932年出生),男,教授,博士生导师,从事电分析化学研究.
  • 基金资助:

    国家自然科学基金(批准号:29835110);中国博士后科学基金资助

Investigation on the Electrochemical and Electrocatalytic Behavior of Chemically Modified Electrode of Single Wall Carbon Nanotube Functionalized with Carboxylic Acid Group

LUO Hong-Xia, SHI Zu-Jin, LI Nan-Qiang, GU Zhen-Nan, ZHUANG Qian-Kun   

  1. College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
  • Received:2000-02-21 Online:2000-09-24 Published:2000-09-24

关键词: 单层碳纳米管, 膜, 循环伏安法, 电催化作用

Abstract: The electrochemical behavior of the film of single wall carbon nanotube(SWNT) functionalized with carboxylic acid group was studied extensively at the glassy carbon(GC) electrode. One stable couple of waves corresponding to the redox of the carboxylic acid group, which was supported by the IRexperiments, was observed. The electrode process involved four electrons, while the rate determining step was a one-electron reduction. The SWNTfilm modified electrode showed nice electrocatalytic behaviors toward the oxidations of some biomolecules such as dopamine, epinephrine and ascorbic acid.

Key words: Single wall carbon nanotube, Chemically modified electrode, Cyclic voltammetry, Electrocatalysis

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