Nano-silver/multi-walled carbon nanotube composite films for hydrogen peroxide electroanalysis

被引：3

作者：

Pinghua Yang

Wanzhi Wei

Chunyuan Tao

Baohua Xie

Xiaoyan Chen

机构：

[1] Jiujiang University,Colleges of Chemistry and Chemical Engineering

[2] College of Chemistry and Chemical Engineering,State Key Laboratory of Chemo/Biosensing and Chemometrics

[3] Hunan University,undefined

来源：

Microchimica Acta | 2008年 / 162卷

关键词：

Keywords: Nano-silver/multi-walled carbon nanotube; hydrogen peroxide; electroanalysis;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

A modified electrode has been fabricated with nano-silver/multi-walled carbon nanotube composites and characterized with scanning electron microscopy, X-ray powder diffraction and cyclic voltammetry. The electrochemical characteristics of the modified electrode have been studied. It has been found that the modified electrode can be used for the direct electroanalysis of hydrogen peroxide. A wave appeared at −0.64 V (vs. SCE) on the modified electrode due to the reduction of hydrogen peroxide. There was a linear relationship between hydrogen peroxide concentration and the cathodic differential pulse voltammetric current in the range 0.35–15 mM with a detection limit of 0.2 mM (S/N = 3). A medical hydrogen peroxide disinfection liquid was analyzed and recoveries were obtained between 97.5 and 103.8%.

引用

页码：51 / 56

页数：5

共 102 条

[1]

Usui Y(2003)Catalytic dihydroxylation of olefins with hydrogen peroxide: an organic-solvent-and metal-free system Angew Chem 42 5623-undefined

[2]

Sato K(2002)Renewable reagentless hydrogen peroxide sensor based on direct elecron transfer of horseradish peroxidase immobilized on colloidal gold-modified electrode Anal Biochem 307 110-undefined

[3]

Tanaka M(2001)A real-time electrochemical technique for measurement of cellular hydrogen peroxide generation and consumption: evaluation in human polymorphonuclear leukocytes Free Radic Biol Med 31 894-undefined

[4]

Liu S Q(2005)Using silver nanoparticle to enhance current response of biosensor Biosens Bioelectron 21 433-undefined

[5]

Ju H X(2002)Comparison of the surface properties of the assembled silver nanoparticle electrode and roughened silver electrode J Phys Chem B 106 1019-undefined

[6]

Liu X(2005)Screen-printed electrodes modified with functionalized mesoporous silica for voltammetric analysis of toxic metal ions Electrochem Commun 7 1170-undefined

[7]

Zweier J L(2003)Gold nanoparticle array for the voltammetric sensing of dopamine J Electroanal Chem 543 127-undefined

[8]

Ren X L(1999)Structures and properties of nanoparticle thin films formed via a one-step exchange-cross-linking-precipitation route Anal Chem 71 5076-undefined

[9]

Meng X W(1996)Morphology-dependent electrochemistry of cytochrome J Am Chem Soc 118 1154-undefined

[10]

Chen D(2004) at Au colloid-modified SnO Sensors 4 147-undefined

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