Degradation study of MEA for PEMFCs under low humidity conditions

被引：282

作者：

Endoh, E ^{[1
]}

Terazono, S ^{[1
]}

Widjaja, H ^{[1
]}

Takimoto, Y ^{[1
]}

机构：

[1] Asahi Glass Co Ltd, Res Ctr, Kanagawa Ku, Yokohama, Kanagawa 221, Japan

来源：

ELECTROCHEMICAL AND SOLID STATE LETTERS | 2004年 / 7卷 / 07期

关键词：

D O I：

10.1149/1.1739314

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The degradation study of the membrane electrode assembly (MEA) for proton exchange membrane fuel cells (PEMFCs) under low humidity conditions was conducted. The MEA degradation was observed during low humidity open-circuit voltage tests. To investigate the degradation mechanism, we conducted electron spin resonance studies of the degenerated MEA, and confirmed the formation of radicals in the catalyst layers. The MEA degradation mechanism that includes the radical formation reaction was verified. (C) 2004 The Electrochemical Society.

引用

页码：A209 / A211

页数：3

共 9 条

[1] ESR STUDY OF ACTIVATED CARBON-FIBERS - PRELIMINARY-RESULTS [J].

DIVITTORIO, SL ;

NAKAYAMA, A ;

ENOKI, T ;

DRESSELHAUS, MS ;

ENDO, M ;

SHINDO, N .

JOURNAL OF MATERIALS RESEARCH, 1993, 8 (09) :2282-2287

[2] ESR IN HEAT-TREATED CARBONS FROM THE ENDOCARP OF BABASSU COCONUT [J].

EMMERICH, FG ;

RETTORI, C ;

LUENGO, CA .

CARBON, 1991, 29 (03) :305-311

[3]

ENDOH E, 2002, EL SOC M ABSTR

[4] Mapping the structure of a non-native state of staphylococcal nuclease [J].

Ermacora, MR ;

Ledman, DW ;

Fox, RO .

NATURE STRUCTURAL BIOLOGY, 1996, 3 (01) :59-66

[5]

KINOSHITA K, 1988, CARBON ELECTROCHEMIC, P86

[6]

LaConti A.B., 2003, HDB FUEL CELLS FUNDA, V3

[7]

Peña JM, 2001, POLYM DEGRAD STABIL, V71, P153

[8]

*SAN EL CO LTD, 2002, NEDO REP

[9] CHEMICAL SNAPSHOTS OF DNA - USING THE HYDROXYL RADICAL TO STUDY THE STRUCTURE OF DNA AND DNA PROTEIN COMPLEXES [J].

TULLIUS, TD .

TRENDS IN BIOCHEMICAL SCIENCES, 1987, 12 (08) :297-300

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