Catalytic electro-oxidation of 2-mercaptoethanol using cobalt phthalocyanine plus poly(2-chloroaniline) modified electrodes

被引：23

作者：

Retamal, BA

Vaschetto, ME

Zagal, JH

机构：

[1] UNIV SANTIAGO CHILE,FAC QUIM & BIOL,SANTIAGO,CHILE

[2] UNIV NACL RIO CUARTO,DEPT QUIM & FIS,FAC CIENCIAS EXACTAS FISIOQUIM & NAT,RA-5800 RIO CUARTO,ARGENTINA

来源：

JOURNAL OF ELECTROANALYTICAL CHEMISTRY | 1997年 / 431卷 / 01期

关键词：

polyaniline; polymer-modified electrodes; electrocatalysis; electro-oxidation; cobalt phthalocyanine; 2-mercaptoethanol;

D O I：

10.1016/S0022-0728(97)00087-9

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The electrochemical oxidation of 2-mercaptoethanol has been examined on cobalt phthalocyanine (CoPc) + poly(2-chloroaniline) (PANCl) modified electrodes. A simple and reproducible procedure is described to obtain the modified-polymer electrodes, PANCl electrodes are modified by dispersing three different percentages of CoPc (0.1, 1 and 20%). These modified electrodes show electrocatalytic activity for 2-mercaptoethanol electro-oxidation in an acid medium. The evaluation of the electrocatalytical response of PANCl + CoPc films suggests that the diffusion rate of electroactive species into the film is improved when the polymer reaches the oxidized state. (C) 1997 Elsevier Science S.A.

引用

收藏

页码：1 / 5

页数：5

相关论文

共 18 条

[1] ELECTROCATALYTIC ASPECTS OF ELECTROGENERATED POLYMER LAYERS [J].

BARENDRECHT, E ;

ELZING, A ;

JANSSEN, LJJ ;

VANDERPUTTEN, A ;

VISSCHER, W ;

VORK, F .

MAKROMOLEKULARE CHEMIE-MACROMOLECULAR SYMPOSIA, 1987, 8 :211-224

[2] CORROSION OF CONDUCTING POLYMERS IN AQUEOUS-MEDIA [J].

BECK, F ;

BARSCH, U ;

MICHAELIS, R .

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1993, 351 (1-2) :169-184

[3] POLYMER-FILMS ON ELECTRODES .13. INCORPORATION OF CATALYSTS INTO ELECTRONICALLY CONDUCTIVE POLYMERS - IRON PHTHALOCYANINE IN POLYPYRROLE [J].

BULL, RA ;

FAN, FR ;

BARD, AJ .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1984, 131 (03) :687-690

[4] CONDUCTING POLYMER ELECTRODES MODIFIED BY METAL TETRASULFONATED PHTHALOCYANINES - PREPARATION AND ELECTROCATALYTIC BEHAVIOR TOWARDS DIOXYGEN REDUCTION IN ACID-MEDIUM [J].

COUTANCEAU, C ;

ELHOURCH, A ;

CROUIGNEAU, P ;

LEGER, JM ;

LAMY, C .

ELECTROCHIMICA ACTA, 1995, 40 (17) :2739-2748

[5] ELECTROCATALYTIC REDUCTION OF OXYGEN AT IRON PHTHALOCYANINE MODIFIED POLYMER ELECTRODES [J].

ELHOURCH, A ;

BELCADI, S ;

MOISY, P ;

CROUIGNEAU, P ;

LEGER, JM ;

LAMY, C .

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1992, 339 (1-2) :1-12

[6] THE MECHANISM OF OXYGEN REDUCTION AT IRON TETRASULFONATO-PHTHALOCYANINE INCORPORATED IN POLYPYRROLE [J].

ELZING, A ;

VANDERPUTTEN, A ;

VISSCHER, W ;

BARENDRECHT, E .

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1987, 233 (1-2) :113-123

[7] ELECTROCATALYTIC AND ANALYTICAL RESPONSE OF COBALT PHTHALOCYANINE CONTAINING CARBON PASTE ELECTRODES TOWARD SULFHYDRYL COMPOUNDS [J].

HALBERT, MK ;

BALDWIN, RP .

ANALYTICAL CHEMISTRY, 1985, 57 (03) :591-595

[8] RESEARCH ON CHEMICALLY MODIFIED ELECTRODES - CATALYTIC REDUCTION OF DIOXYGEN AT A COBALT PHTHALOCYANINE-DOPED POLYANILINE FILM ELECTRODE [J].

JIANG, RZ ;

DONG, SJ .

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1988, 246 (01) :101-117

[9] ELECTROCHEMICAL REACTIONS CONCERNED WITH ELECTROCHROMISM OF POLYANILINE FILM-COATED ELECTRODES [J].

KOBAYASHI, T ;

YONEYAMA, H ;

TAMURA, H .

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1984, 177 (1-2) :281-291

[10]

MEIER H, 1985, POLYM BULL, V13, P43