High performance gold-supported platinum electrocatalyst for oxygen reduction

被引：83

作者：

Van Brussel, M

Kokkinidis, G

Vandendael, I

Buess-Herman, C

机构：

[1] Free Univ Brussels, Fac Sci, Serv Chim Analyt & Chim Interfaces, B-1050 Brussels, Belgium

[2] Free Univ Brussels, Dept Met Electrochem & Mat Sci, B-1050 Brussels, Belgium

来源：

ELECTROCHEMISTRY COMMUNICATIONS | 2002年 / 4卷 / 10期

关键词：

Au substrate; copper electrodeposition; displacement deposition; platinum; oxygen reduction; catalytic activity;

D O I：

10.1016/S1388-2481(02)00437-X

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

High performance gold-supported Pt electrocatalyst for the reduction of oxygen was prepared by replacing Cu adlayers, deposited potentiostatically on An, with Pt at open-circuit potential in a 0.1 M HCl solution containing K2PtCl6. Auger Electron Spectroscopy and Atomic Force Microscopy reveal the surface modification. The kinetics of oxygen reduction on this platinum modified electrode was studied by the rotating-disc electrode technique. The activity of the electrode is lower than the activity of a smooth Pt electrode in the negative potential scan, but it is significantly higher in the positive scan. (C) 2002 Elsevier Science B.V. All rights reserved.

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页码：808 / 813

页数：6

相关论文

共 21 条

[1] EFFECT OF UNDERPOTENTIAL DEPOSITION (UPD) OF COPPER ON OXYGEN REDUCTION AT PT(111) SURFACES [J].

ABE, T ;

SWAIN, GM ;

SASHIKATA, K ;

ITAYA, K .

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1995, 382 (1-2) :73-83

[2] SIMULATION OF THE POLARIZATION CURVES FOR OXYGEN REDUCTION AT A ROTATING-DISK ELECTRODE [J].

ADANUVOR, PK ;

WHITE, RE .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1987, 134 (05) :1093-1098

[3] STRUCTURE OF METAL ADLAYERS DURING THE COURSE OF ELECTROCATALYTIC REACTIONS - O-2 REDUCTION ON AU(111) WITH TL ADLAYERS IN ACID-SOLUTIONS [J].

ADZIC, RR ;

WANG, J ;

OCKO, BM .

ELECTROCHIMICA ACTA, 1995, 40 (01) :83-89

[4] Metal monolayer deposition by replacement of metal adlayers on electrode surfaces [J].

Brankovic, SR ;

Wang, JX ;

Adzic, RR .

SURFACE SCIENCE, 2001, 474 (1-3) :L173-L179

[5] 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

[6] Electrochemical reduction of oxygen on platinum nanoparticles in alkaline media [J].

Geniès, L ;

Faure, R ;

Durand, R .

ELECTROCHIMICA ACTA, 1998, 44 (8-9) :1317-1327

[7] O2 reduction on an ink-type rotating disk electrode using Pt supported on high-area carbons [J].

Gojkovic, SL ;

Zecevic, SK ;

Savinell, RF .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1998, 145 (11) :3713-3720

[8] OXYGEN REDUCTION ON PT AND CU SURFACES MODIFIED BY UNDERPOTENTIAL ADSORBATES [J].

KOKKINIDIS, G ;

JANNAKOUDAKIS, D .

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1984, 162 (1-2) :163-173

[9] Electroless deposition of Pt on Ti Part II. Catalytic activity for oxygen reduction [J].

Kokkinidis, G ;

Stoychev, D ;

Lazarov, V ;

Papoutsis, A ;

Milchev, A .

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 2001, 511 (1-2) :20-30

[10] Electroless deposition of Pt on Ti - catalytic activity for the hydrogen evolution reaction [J].

Kokkinidis, G ;

Papoutsis, A ;

Stoychev, D ;

Milchev, A .

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 2000, 486 (01) :48-55