Preparation, characterization, and electrocatalytic properties of cobalt oxide and cobalt hexacyanoferrate hybrid films

被引：16

作者：

Chen, Shen-Ming ^{[1
]}

Wu, Ming-Huei ^{[1
]}

Thangamuthu, R. ^{[1
]}

机构：

[1] Natl Taipei Univ Technol, Dept Chem Engn & Biotechnol, Taipei 106, Taiwan

来源：

ELECTROANALYSIS | 2008年 / 20卷 / 02期

关键词：

cobalt oxide; cobalt hexacyanoferrate; hybrid film; modified electrode; electrocatalysis;

D O I：

10.1002/elan.200704036

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Polynuclear mixed-valent films of cobalt oxide and cobalt hexacyanoferrate (CoOCoHCF) have been deposited on electrode surfaces from a solution of CO2+ and Fe(CN)(6)(3-) ions by repetitive potential cycling method. Simultaneous cyclic voltammetry and electrochemical quartz crystal microbalance measurements demonstrate the steady growth of modified film. The effect of type of monovalent cations as well as acidity of the supporting electrolyte on film growth and redox behavior of resulting film was investigated. In pure supporting electrolyte, electrochemical responses of modified electrode resemble with that of a surface immobilized redox couple. The hybrid film electrodes showed electrocatalytic activity toward oxidation of NADH, hydrazine and hydroxylamine. The feasibility of using our modified electrodes for analytical application was also explored.

引用

页码：178 / 184

页数：7

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