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

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