Electrochemical chlorine sensor with multi-walled carbon nanotubes as electrocatalysts

被引：30

作者：

Sun, Gengzhi ^{[1
]}

Liu, Shiwei ^{[1
]}

Hua, Kaifeng ^{[1
]}

Lv, Xiangyu ^{[1
]}

Huang, Li ^{[1
]}

Wang, Yujiang ^{[1
]}

机构：

[1] Chinese Acad Sci, Changchun Inst Appl Chem, Grad Sch, Changchun 130022, Peoples R China

来源：

ELECTROCHEMISTRY COMMUNICATIONS | 2007年 / 9卷 / 09期

关键词：

carbon nanotubes; sensor; chlorine; electrocatalyst; cyclic voltammetry;

D O I：

10.1016/j.elecom.2007.07.015

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

It has been reported for the first time that an electrochemical gas sensor mdified with multi-walled carbon nanotubes (MWNTs) film as elctrocatalyst was fabricated for the determination of chlorine (Cl-2). Here, MWNTs and graphite were compared with each other in terms of their electrochemical properties using cyclic voltammetry. Cl-2 gas was allowed through the cathode surface of the sensor and the resulting galvanic effects were monitored. Results indicated that both of the MWNTs and graphite have the electrocatalytic activity for the reduction of Cl-2 while the MWNTs-modified electrode exhibited a higher accessible surface area in electrochemical reactions, excellent sensitivity, stable response, reproducibility and recovery for the determination of Cl-2 (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：2436 / 2440

页数：5

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