Oxidative degradation of acid doped polybenzimidazole membranes and fuel cell durability in the presence of ferrous ions
文献类型：期刊论文
| 作者 | Liao JH ; Yang JS ; Li QF ; Cleemann LN ; Jensen JO ; Bjerrum NJ ; He RH ; Xing W |
| 刊名 | journal of power sources
 |
| 出版日期 | 2013 |
| 卷号 | 238页码:516-522 |
| 关键词 | HIGH-TEMPERATURE PEMFCS POLYMER ELECTROLYTE MEMBRANE HYDROGEN-PEROXIDE PBI BLEND MEAS |
| ISSN号 | 0378-7753 |
| 通讯作者 | li qf |
| 中文摘要 | phosphoric acid doped polybenzimidazole membranes have been explored as proton exchange membranes for high temperature polymer electrolyte membrane fuel cells. long-term durability of the membrane is of critical concern and has been evaluated by accelerated degradation tests under fenton conditions. in this study effects of phosphoric acid and ferrous ions were investigated by measurements of the weight loss, intrinsic viscosity and size exclusion chromatography (sec) of the polymer membranes. ferrous ions resulted in, as expected, catalytic formation of peroxide radicals and hence the accelerated polymer degradation in terms of weight loss and molecular weight decrease. the presence of phosphoric acid as an inevitable dopant of the membranes, on the other hand, significantly impeded the membrane degradation by means of metal ion complexing, decreased ph, and acid base interactions with the amino groups of the polymer. fuel cell durability tests with contaminations of ferrous ions did show considerable performance degradation, however, primarily due to the catalyst deterioration rather than the membrane degradation. (c) 2013 elsevier b.v. all rights reserved. |
| 收录类别 | SCI收录期刊论文 |
| 语种 | 英语 |
| WOS记录号 | WOS:000320901900067 |
| 公开日期 | 2014-04-15 |
| 源URL | [http://ir.ciac.jl.cn/handle/322003/49614]  |
| 专题 | 长春应用化学研究所_长春应用化学研究所知识产出_期刊论文 |
| 推荐引用方式 GB/T 7714 | Liao JH,Yang JS,Li QF,et al. Oxidative degradation of acid doped polybenzimidazole membranes and fuel cell durability in the presence of ferrous ions[J]. journal of power sources,2013,238:516-522. |
| APA | Liao JH.,Yang JS.,Li QF.,Cleemann LN.,Jensen JO.,...&Xing W.(2013).Oxidative degradation of acid doped polybenzimidazole membranes and fuel cell durability in the presence of ferrous ions.journal of power sources,238,516-522. |
| MLA | Liao JH,et al."Oxidative degradation of acid doped polybenzimidazole membranes and fuel cell durability in the presence of ferrous ions".journal of power sources 238(2013):516-522. |
入库方式： OAI收割
来源：长春应用化学研究所
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