Electrochemical and spontaneous deposition of ruthenium at platinum electrodes for methanol oxidation:: an electrochemical quartz crystal microbalance study

被引：63

作者：

Vigier, F ^{[1
]}

Gloaguen, F ^{[1
]}

Léger, JM ^{[1
]}

Lamy, C ^{[1
]}

机构：

[1] Univ Poitiers, UMR 6503 CNRS, Equipe Electrocatalyse, F-86022 Poitiers, France

来源：

ELECTROCHIMICA ACTA | 2001年 / 46卷 / 28期

关键词：

electrodeposition; EQCM; methanol electrooxidation; PtRu electrodes; spontaneous deposition;

D O I：

10.1016/S0013-4686(01)00680-6

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

PtRu electrodes with Ru surface concentration ranging from 20 to 50% were prepared by electrolysis of Ru(NO)(NO3)(3) at a constant potential and/or by spontaneous Ru deposition performed at open circuit potential from a RuCl3, solution. The amount of either spontaneously or electrochemically deposited ruthenium on the platinum electrode was determined by means of an electrochemical quartz crystal microbalance (EQCM). The effect of the Ru surface concentration on the rate of methanol electrooxidation was also investigated and correlated to the EQCM measurements. (C) 2001 Elsevier Science Ltd. All rights reserved.

引用

页码：4331 / 4337

页数：7

共 19 条

[1]

Bard A. J., 1980, ELECTROCHEMICAL METH, P143

[2]

Buttry D.A., 1991, ELECTROANALYTICAL CH, V17, P1

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

Chrzanowski, W ;

Wieckowski, A .

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

[4] Measurement of the Ru surface content of electrocodeposited PtRu electrodes with the electrochemical quartz crystal microbalance: Implications for methanol and CO electrooxidation [J].

Frelink, T ;

Visscher, W ;

vanVeen, JAR .

LANGMUIR, 1996, 12 (15) :3702-3708

[5] TEMPERATURE-DEPENDENT METHANOL ELECTROOXIDATION ON WELL-CHARACTERIZED PT-RU ALLOYS [J].

GASTEIGER, HA ;

MARKOVIC, N ;

ROSS, PN ;

CAIRNS, EJ .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1994, 141 (07) :1795-1803

[6] An electrochemical quartz crystal microbalance study of the hydrogen underpotential deposition at a Pt electrode [J].

Gloaguen, F ;

Léger, JM ;

Lamy, C .

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1999, 467 (1-2) :186-192

[7] Scanning tunneling microscopy images of ruthenium submonolayers spontaneously deposited on a Pt(111) electrode [J].

Herrero, E ;

Feliu, JM ;

Wieckowski, A .

LANGMUIR, 1999, 15 (15) :4944-4948

[8] A VOLTAMMETRIC IDENTIFICATION OF THE SURFACE REDOX COUPLE EFFECTIVE IN METHANOL OXIDATION ON A RUTHENIUM-COVERED PLATINUM (110) ELECTRODE [J].

HERRERO, E ;

FRANASZCZUK, K ;

WIECSKOWSKI, A .

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1993, 361 (1-2) :269-273

[9] CO ADSORPTION AND OXIDATION ON PT AND PT-RU ALLOYS - DEPENDENCE ON SUBSTRATE COMPOSITION [J].

IANNIELLO, R ;

SCHMIDT, VM ;

STIMMING, U ;

STUMPER, J ;

WALLAU, A .

ELECTROCHIMICA ACTA, 1994, 39 (11-12) :1863-1869

[10] In situ FTIRS study of the electrocatalytic oxidation of carbon monoxide and methanol at platinum-ruthenium bulk alloy electrodes [J].

Kabbabi, A ;

Faure, R ;

Durand, R ;

Beden, B ;

Hahn, F ;

Leger, JM ;

Lamy, C .

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1998, 444 (01) :41-53

← 1 2 →