Cobalt hydroxide film deposited on glassy carbon electrode for electrocatalytic oxidation of hydroquinone

被引：51

作者：

Fan, Li Fang ^{[1
]}

Wu, Xiao Qin ^{[1
]}

Guo, Man Dong ^{[1
]}

Gao, Yun Tian ^{[1
]}

机构：

[1] Shanxi Normal Univ, Dept Chem, Linfen 041004, Peoples R China

来源：

ELECTROCHIMICA ACTA | 2007年 / 52卷 / 11期

关键词：

cobalt hydroxide; cyclic voltammetry; linear sweep voltammetry; electrocatalysis; hydroquinone;

D O I：

10.1016/j.electacta.2006.10.027

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The electrodeposition of cobalt hydroxide film on glassy carbon electrode was prepared by electrochemical method in an alkaline aqueous solution. The electrochemical behavior of hydroquinone on cobalt hydroxide film electrode has been investigated by using cyclic voltammetry and linear sweep voltammetry. The results showed that the film electrode has good electrocatalytic ability for the oxidation of hydroquinone to p-quinone. The recovery of hydroquinone from sample ranged from 94.7% to 102.9% and a rectilinear analytical curve for hydroquinone concentration from 5.0 x 10(-6) to 1.25 x 10(-4) mol/L was obtained. The detection limit was 5.0 x 10(-7) mol/L and the relative standard deviation was 2.63%. Various factors affecting the electrocatalytic activity of cobalt hydroxide film were investigated. (c) 2006 Elsevier Ltd. All rights reserved.

引用

页码：3654 / 3659

页数：6

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