Sol-gel derived carbon ceramic electrode for the investigation of the electrochemical behavior and electrocatalytic activity of neodymium hexacyanoferrate

被引：45

作者：

Sheng, Qing Lin ^{[1
]}

Yu, Hao ^{[1
]}

Zheng, Jian Bin ^{[1
]}

机构：

[1] NW Univ Xian, Int Analyt Sci, Shaanxi Provincial Key Lab Electroanalyt Chem, Xian 710069, Shaanxi, Peoples R China

来源：

ELECTROCHIMICA ACTA | 2007年 / 52卷 / 13期

基金：

中国国家自然科学基金;

关键词：

neodymium hexacyanoferrate; carbon ceramic electrode; electrochemical behavior; electrocatalysis; hydrogen peroxide;

D O I：

10.1016/j.electacta.2006.12.047

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The electrochemical properties of an electroactive rare earth metal hexacyanoferrate, neodymium hexacyanoferrate (NdHCF) were studied by mechanically attaching NdHCF samples to the surface of carbon ceramic electrodes (CCEs) derived from sol-gel technique. The resulting modified electrodes exhibit well-defined redox responses with the formal potential of 0.241 V (versus SCE) at a scan rate of 20 mV s(-1) in 0.5 M KCl solution. The voltammetric characteristics of the NdHCF-modified CCEs in the presence of different alkali metal cations (Li+, Ne+, K+, Rb+ and Cs+) were investigated by voltammetry. The NdHCF-modified CCEs presented a good electrocatalytic activity towards the reduction of hydrogen peroxide (H2O2), and was used for amperometric detection of H2O2. In addition, the NdHCF-CCEs exhibited a distinct advantage of simple preparation, surface renewal, good stability and reproducibility. (c) 2007 Elsevier Ltd. All rights reserved.

引用

页码：4506 / 4512

页数：7

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