Electrocatalytic oxidation of hydrogen peroxide and cysteine at a glassy carbon electrode modified with platinum nanoparticle-deposited carbon nanotubes

被引：38

作者：

Li, JP ^{[1
]}

Yu, QL

Peng, TZ

机构：

[1] Guillin Univ Technol, Dept Mat & Chem Engn, Guilin 541004, Peoples R China

[2] Zhejiang Univ, Dept Chem, Hangzhou 310028, Peoples R China

来源：

ANALYTICAL SCIENCES | 2005年 / 21卷 / 04期

关键词：

D O I：

10.2116/analsci.21.377

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A glassy carbon electrode modified with platinum nanoparticle-decorated carbon nanotubes (Pt-CNT/GCE) was prepared. The electrochemical behaviors for the catalysis oxidations of hydrogen peroxide and cysteine were studied. The Pt-CNT/GCE showed catalytic activity for electro-oxidation of hydrogen peroxide at 0.6 V in PBS (pH = 7.0) and for that of cysteine at 0.55 V in sulfuric acid medium (pH <= 2). The results indicated that the peak currents were proportional to the concentrations of both hydrogen peroxide and cysteine; the currents at Pt-CNT/GCE were almost 3-times higher than that at Pt electrode. The electrocatalytic oxidation mechanisms for hydrogen peroxide and cysteine at Pt-CNT/GCE surface were briefly studied.

引用

页码：377 / 381

页数：5

共 31 条

[1] Decoration of activated carbon nanotubes with copper and nickel [J].

Ang, LM ;

Hor, TSA ;

Xu, GQ ;

Tung, CH ;

Zhao, SP ;

Wang, JLS .

CARBON, 2000, 38 (03) :363-372

[2]

BARD AJ, 1986, ELECTROCHEMICAL METH, P258

[3] Graphite nanofibers as an electrode for fuel cell applications [J].

Bessel, CA ;

Laubernds, K ;

Rodriguez, NM ;

Baker, RTK .

JOURNAL OF PHYSICAL CHEMISTRY B, 2001, 105 (06) :1115-1118

[4] Carbon nanotube electrode for oxidation of dopamine [J].

Britto, PJ ;

Santhanam, KSV ;

Ajayan, PM .

BIOELECTROCHEMISTRY AND BIOENERGETICS, 1996, 41 (01) :121-125

[5]

CHEN JF, 2001, SCI CHINA SER A, V31, P529

[6] Carbon-nanotube metal-matrix composites prepared by electroless plating [J].

Chen, XH ;

Xia, JT ;

Peng, JC ;

Li, WZ ;

Xie, SS .

COMPOSITES SCIENCE AND TECHNOLOGY, 2000, 60 (02) :301-306

[7] The immobilisation of proteins in carbon nanotubes [J].

Davis, JJ ;

Green, MLH ;

Hill, HAO ;

Leung, YC ;

Sadler, PJ ;

Sloan, J ;

Xavier, AV ;

Tsang, SC .

INORGANICA CHIMICA ACTA, 1998, 272 (1-2) :261-266

[8] A CARBON ELECTRODE SPUTTERED WITH PALLADIUM AND GOLD FOR THE AMPEROMETRIC DETECTION OF HYDROGEN-PEROXIDE [J].

GORTON, L .

ANALYTICA CHIMICA ACTA, 1985, 178 (02) :247-253

[9] THE ANODIC DECOMPOSITION OF HYDROGEN PEROXIDE [J].

HICKLING, A ;

WILSON, WH .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1951, 98 (11) :425-433

[10] LIQUID-CHROMATOGRAPHY WITH ELECTROCATALYTIC DETECTION OF CYSTEINE, N-ACETYLCYSTEINE AND GLUTATHIONE BY A PRUSSIAN BLUE FILM-MODIFIED ELECTRODE [J].

HOU, WY ;

WANG, EK .

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1991, 316 (1-2) :155-163

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