The electrochemical oxidation of methanol on platinum and platinum plus ruthenium particulate electrodes studied by in-situ FTIR spectroscopy and electrochemical mass spectrometry

被引：76

作者：

Munk, J ^{[1
]}

Christensen, PA ^{[1
]}

Hamnett, A ^{[1
]}

Skou, E ^{[1
]}

机构：

[1] ODENSE UNIV,DEPT CHEM,DK-5230 ODENSE M,DENMARK

来源：

JOURNAL OF ELECTROANALYTICAL CHEMISTRY | 1996年 / 401卷 / 1-2期

关键词：

electro-oxidation; fuel cells; Pt + Ru catalyst; Fourier transform; IR spectroscopy; methanol; electrochemical mass spectrometry;

D O I：

10.1016/0022-0728(95)04314-4

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The technique of in-situ electrochemical Fourier transform IR spectroscopy has been extended to the study of a real carbon-supported platinum + ruthenium catalyst. Results are presented for the electro-oxidation of methanol at bulk Pt, Pt particles and carbon-black-supported Pt + Ru electrodes. Marked differences are observed, particularly with regard to the nature of the adsorbed CO species. Additional electrochemical mass spectrometry data support the suggestion made in a previous paper that the migration of CO to the surface is an important part of the reaction mechanism.

引用

页码：215 / 222

页数：8

共 21 条

[1] GENERALIZED SCHEME OF CHEMISORPTION, ELECTROOXIDATION AND ELECTROREDUCTION OF SIMPLE ORGANIC-COMPOUNDS ON PLATINUM GROUP METALS [J].