Analysis of degradation in PEMFC caused by cell reversal during air starvation

被引：198

作者：

Taniguchi, Akira ^{[1
,2
]}

Akita, Tomoki ^{[1
]}

Yasuda, Kazuaki ^{[1
]}

Miyazaki, Yoshinori ^{[1
]}

机构：

[1] Natl Inst Adv Ind Sci & Technol, Res Inst Ubiquitous Energy Devices, Osaka 5638577, Japan

[2] Nara Inst Sci & Technol, Grad Sch Mat Sci, Nara 6300192, Japan

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2008年 / 33卷 / 09期

关键词：

PEMFC; fuel cell; air starvation; cell reversal; electrocatalyst;

D O I：

10.1016/j.ijhydene.2008.02.049

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：

The damage caused by cell reversal during proton exchange membrane fuel cells (PEMFCs) operation with air starvation was investigated by a single-cell experiment. Samples from degraded membrane-electrode assemblies (MEAs) were characterized. The loss of electrochemical surface area of the cathode platinum was detected by in situ cyclic voltammetry, and platinum sintering was detected by transmission electron microscopy (TEM) analysis. Degradation at the anode was not detected in the chemical analysis of the anode catalyst layer of MEA samples by energy dispersive X-ray analysis (EDX) and TEM. An obvious decrease in the performance of PEMFC was observed in a sample degraded by cell reversal for 120 min. (c) 2008 International Association for Hydrogen Energy. Published by Elsevier Ltd. All rights reserved.

引用

页码：2323 / 2329

页数：7

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