Electrocatalytic oxidation of catechol at multi-walled carbon nanotubes modified electrode

被引：73

作者：

Xu, Z ^{[1
]}

Chen, X ^{[1
]}

Qu, XH ^{[1
]}

Dong, SJ ^{[1
]}

机构：

[1] Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Electroanalyt Chem, Changchun 130022, Peoples R China

来源：

ELECTROANALYSIS | 2004年 / 16卷 / 08期

关键词：

carbon nanotube; cyclic voltammetry; catechol; ascorbic acid;

D O I：

10.1002/elan.200302843

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

In 0.05 mol/L phosphate buffer solution (pH 7.0), carbon nanotubes modified electrode exhibits rapid response, strong catalytic activity with high stability toward the electrochemical oxidation of catechol. The electrochemical behavior of catechol on both the multi-walled and single-walled carbon nanotubes modified electrode was investigated. The experimental conditions, such as pH of the solution and scan rate were optimized. The currents (measured by constant potential amperometry) increase linearly with the concentrations of catechol in the range of 2.0 x 10(-5) - 1.2 x 10(-3) mol/L. Moreover, at the multi-walled carbon nanotubes modified electrode the electrochemical responses of catechol and ascorbic acid can be separated clearly.

引用

页码：684 / 687

页数：4

共 29 条

[1] PROBING BRAIN CHEMISTRY WITH ELECTROANALYTICAL TECHNIQUES [J].