Mitigation of Perfluorosulfonic Acid Membrane Chemical Degradation Using Cerium and Manganese Ions

被引：158

作者：

Coms, Frank D. ^{[1
]}

Liu, Han ^{[2
]}

Owejan, Jeanette E. ^{[1
]}

机构：

[1] Gen Motors Corp, Fuel Cell Res Labs, 10 Carriage St, Honeoye Falls, NY 14472 USA

[2] Giner Electrochem Syst LLC, Newton, MA 02466 USA

来源：

PROTON EXCHANGE MEMBRANE FUEL CELLS 8, PTS 1 AND 2 | 2008年 / 16卷 / 02期

关键词：

D O I：

10.1149/1.2982015

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：

Cerium and manganese ions are very effective reversible scavengers of -OH in an operating PFSA-based PEM fuel cell. The use of these ions in very small quantities can reduce the fluoride release rate by up to three orders of magnitude relative to an unmitigated sample and thereby afford extremely durable membranes. A chemically rational mechanism that accounts for the remarkable effectiveness of these chemical mitigants is presented.

引用

页码：1735 / +

页数：3

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