Investigation of Pt catalytic effects on carbon support corrosion of the cathode catalyst in PEM fuel cells using DEMS spectra

被引：78

作者：

Li, Wei ^{[1
]}

Lane, Alan M. ^{[1
]}

机构：

[1] Univ Alabama, Dept Biol & Chem Engn, Tuscaloosa, AL 35487 USA

来源：

ELECTROCHEMISTRY COMMUNICATIONS | 2009年 / 11卷 / 06期

关键词：

Differential electrochemical mass spectrometry; Carbon support corrosion; Catalytic effects; Pt redox; Oxygen reduction reaction; Proton exchange membrane fuel cell; ELECTRODES; ACID; ELECTROOXIDATION; STABILITY; SURFACES;

D O I：

10.1016/j.elecom.2009.04.001

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Differential electrochemical mass spectrometry (DEMS) spectra of cathode exhaust gases, CO2, H-2 and O-2, are presented for the first time to characterize the fit redox reactions and Pt-catalyzed oxygen reduction reaction (ORR), as well as correlate them to carbon support corrosion (CSC) of the cathode catalyst in a real proton exchange membrane fuel cell (PEMFC). Furthermore, different oxidation states of Pt with catalytic capacity for CSC are indicated. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：1187 / 1190

页数：4

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