Preparation of binary metal electrocatalysts by self-assembly of precursor ionic species on gold and reduction of nitrate ions

被引：43

作者：

Shimazu, K ^{[1
]}

Kawaguchi, T ^{[1
]}

Tada, K ^{[1
]}

机构：

[1] Hokkaido Univ, Grad Sch Environm Earth Sci, Dept Mat Sci, Sapporo, Hokkaido 0600810, Japan

来源：

JOURNAL OF ELECTROANALYTICAL CHEMISTRY | 2002年 / 529卷 / 01期

关键词：

platinum/tin electrocatalyst; quartz crystal microbalance; nitrate reduction;

D O I：

10.1016/S0022-0728(02)00913-0

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Pt/Sn binary metal electrodes were prepared by the successive adsorption of Sn2+ and PtCl62- ions onto a gold substrate followed 6 by the reduction of the adsorbed PtCl62-. The atomic ratios of Sn and Pt to the surface Au were determined to be approximately 1 and 0.3, respectively, using a quartz crystal microbalance (QCM), X-ray photoelectron spectroscopy (XPS) and cyclic voltammetry. Therefore, binary metal layers at a monolayer level were formed. These Pt/Sn binary metal electrodes exhibited a very high electrocatalytic activity for the reduction of nitrate ions with the predominant formation of ammonium ions. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：20 / 27

页数：8

共 45 条

[1] ELEMENTARY STEPS OF ELECTROCHEMICAL OXIDATION OF SINGLE-CRYSTAL PLANES OF AU .2. A CHEMICAL AND STRUCTURAL BASIS OF OXIDATION OF THE (111) PLANE [J].

ANGERSTEINKOZLOWSKA, H ;

CONWAY, BE ;

HAMELIN, A ;

STOICOVICIU, L .

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1987, 228 (1-2) :429-453

[2]

[Anonymous], 1977, Handbook of X-ray and Ultraviolet Photoelectron Spectroscopy

[3] MEASUREMENT OF INTERFACIAL PROCESSES AT ELECTRODE SURFACES WITH THE ELECTROCHEMICAL QUARTZ CRYSTAL MICROBALANCE [J].

BUTTRY, DA ;

WARD, MD .

CHEMICAL REVIEWS, 1992, 92 (06) :1355-1379

[4]

CARLSON TA, 1974, J ELECTRON SPECTROSC, V1, P161

[5] Surface structure effects in platinum/ruthenium methanol oxidation electrocatalysis [J].

Chrzanowski, W ;

Wieckowski, A .

LANGMUIR, 1998, 14 (08) :1967-1970

[6] Ultrathin films of ruthenium on low index platinum single crystal surfaces: An electrochemical study [J].

Chrzanowski, W ;

Wieckowski, A .

LANGMUIR, 1997, 13 (22) :5974-5978

[7] Examination of Pt(111)/Ru and Pt(111)/Os surfaces: STM imaging and methanol oxidation activity [J].

Crown, A ;

Moraes, IR ;

Wieckowski, A .

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 2001, 500 (1-2) :333-343

[8]

de Dios FJG, 2001, ELECTROCHEM COMMUN, V3, P659

[9] Electrocatalytic reduction of NO3- on palladium/copper electrodes [J].

de Vooys, ACA ;

van Santen, RA ;

van Veen, JAR .

JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL, 2000, 154 (1-2) :203-215

[10] ADSORPTION AND DESORPTION OF LEAD AT POLYCRYSTALLINE GOLD ELECTRODE AND ITS EFFECT ON THE SUPERIMPOSED REDUCTION OF NITRATE ANION [J].

GARCIADOMENECH, J ;

CLIMENT, MA ;

ALDAZ, A ;

VAZQUEZ, JL ;

CLAVILIER, J .

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1983, 159 (01) :223-227

← 1 2 3 4 5 →