南京工业大学学报（自然科学版）2012，Vol.34Issue(5)：99-103,5.DOI:10.3969/j.issn.1671-7627.2012.05.019
垫片材料在模拟的PEM燃料电池环境下损伤机制
Degradation mechanism of gasket material in simulated PEM fuel cell environments
摘要
Abstract
The long-term chemical stability of gasket materials was critical to both sealing and electrochemical performance of proton exchange membrane (PEM) fuel cell. The chemical degradation of sili-cone rubber material, which was widely used as gasket material in PEM fuel cells, was investigated experimentally in simulated fuel cell environments. The degradation mechanism of gasket material in simulated fuel cell environments was studied by X-ray photoelectron spectroscopy (XPS) technique. Results indicated that the chemical structure on material surface changed significantly and degradation caused mainly by chain scission in the backbone of Si—O—Si and side group of Si—CH3.关键词
PEM燃料电池/垫片材料/环境/损伤机制Key words
proton exchange membrane ( PEM ) fuel cell/ gasket material/ environment/degradation mechanism分类
信息技术与安全科学引用本文复制引用
奚天鹏,辛艳超,谈金祝,胡学家,张晓维..垫片材料在模拟的PEM燃料电池环境下损伤机制[J].南京工业大学学报（自然科学版）,2012,34(5):99-103,5.基金项目
江苏省自然科学基金资助项目(BK2009362) （BK2009362）
国家自然科学基金资助项目(51175241) （51175241）
