Proton exchange membrane fuel cell reversible performance loss induced by carbon monoxide produced during operation

被引：30

作者：

Decoopman, B. ^{[1
,2
,3
]}

Vincent, R. ^{[1
,2
]}

Rosini, S. ^{[1
,2
]}

Paganelli, G. ^{[3
]}

Thivel, P. -X. ^{[4
]}

机构：

[1] Univ Grenoble Alpes, F-38000 Grenoble, France

[2] CEA, LITEN, F-38054 Grenoble, France

[3] Michelin Rech & Tech SA, CDM, Route Andre Piller 30, CH-1762 Givisiez, Switzerland

[4] Univ Grenoble Alpes, CNRS, LEPMI, F-38000 Grenoble, France

来源：

JOURNAL OF POWER SOURCES | 2016年 / 324卷

关键词：

PEMFC; Carbon monoxide; Degradation mechanism; Catalyst poisoning; ORIENTED PYROLYTIC-GRAPHITE; PORTABLE APPLICATIONS; ELECTRODE ASSEMBLIES; SURFACE OXIDATION; CATALYST SUPPORT; DEGRADATION; CORROSION; DURABILITY; OXYGEN; BEHAVIOR;

D O I：

10.1016/j.jpowsour.2016.05.113

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Cyclic voltammetry measurements at the anode have been carried out and reveal the presence of carbon monoxide in steady-state operation, with pure hydrogen. Experiments have been performed both in single cell and in stack to find out its origin. The contamination of the anode catalyst is partly due the reverse-water gas shift (RWGS) with carbon dioxide from the cathode. However, this study shows a temperature-activated and time-related corrosion mechanism which appears under humidified hydrogen. Due to this degradation mechanism, a reversible 25 mV-loss of performances is observed and can be recovered by oxidizing carbon monoxide on the anode. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：492 / 498

页数：7

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