Characterization and electrocatalytic property of cobalt hexacyanoferrate film on carbon nanotubes modified gold electrode

被引：5
|
作者：
Tang, Qingyun [1 ]
Xiong, Wengao [1 ]
Long, Liping [1 ]
机构：
[1] Hunan City Univ, Dept Chem & Environm Engn, Yiyang 413049, Peoples R China
来源：
ANALYTICAL LETTERS | 2007年 / 40卷 / 08期
关键词：
multiwalled carbon nanotubes; cobalt hexacyanoferrate; thiosulfate;
D O I：
10.1080/00032710701380640
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
Cobalt hexacyanoferrate (CoHCF) film was formed on multiwalled carbon nanotubes (MWNTs) modified gold electrode by electrodeposition from 0.5 M KCl solution containing CoCl2 and K3Fe(CN)(6). The electrochemical behavior and the electrocatalytic property of the modified electrode were investigated. Compared with CoHCF/gold electrode, the CoHCF/MWNTs/gold electrode exhibits greatly improved stability and enhanced electrocatalytic activity toward the oxidation of thiosulfate. A linear range from 5.0 x 10(-5) to 6.5 x 10(-3) M (r = 0.9990) for thiosulfate detection at the CoHCF/MWNTs/gold electrode was obtained, with a detection limit of 2.0 x 10(-5) M (S/N = 3).
引用
收藏
页码：1610 / 1621
页数：12
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