Oxidative Degradation of Polybenzimidazole Membranes as Electrolytes for High Temperature Proton Exchange Membrane Fuel Cells
文献类型：期刊论文
| 作者 | Liao JH ; Li QF ; Rudbeck HC ; Jensen JO ; Chromik A ; Bjerrum NJ ; Kerres J ; Xing W |
| 刊名 | fuel cells
 |
| 出版日期 | 2011 |
| 卷号 | 11期号:6页码:745-755 |
| 关键词 | ACID DOPED POLYBENZIMIDAZOLE POLYMER ELECTROLYTE CONDUCTING MEMBRANES CHP APPLICATIONS H3PO4-DOPED PBI PEMFC MODE PERFORMANCE ENVIRONMENT POLYETHERS |
| ISSN号 | 1615-6846 |
| 通讯作者 | li qf |
| 中文摘要 | polybenzimidazole membranes imbibed with acid are emerging as a suitable electrolyte material for high-temperature polymer electrolyte fuel cells. the oxidative stability of polybenzimidazole has been identified as an important issue for the long-term durability of such cells. in this paper the oxidative degradation of the polymer membrane was studied under the fenton test conditions by the weight loss, intrinsic viscosity, size exclusion chromatography, scanning electron microscopy and fourier transform infrared spectroscopy. during the fenton test, significant weight losses depending on the initial molecular weight of the polymer were observed. at the same time, viscosity and sec measurements revealed a steady decrease in molecular weight. the degradation of acid doped pbi membranes under fenton test conditions is proposed to start by the attack of hydroxyl radicals at the carbon atom linking imidazole ring and benzenoid ring, which may eventually lead to the imidazole ring opening and formation of small molecules and terminal groups for further oxidation by an endpoint oxidation. |
| 收录类别 | SCI收录期刊论文 |
| 语种 | 英语 |
| WOS记录号 | WOS:000298317200005 |
| 公开日期 | 2012-06-07 |
| 源URL | [http://ir.ciac.jl.cn/handle/322003/44190]  |
| 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,Li QF,Rudbeck HC,et al. Oxidative Degradation of Polybenzimidazole Membranes as Electrolytes for High Temperature Proton Exchange Membrane Fuel Cells[J]. fuel cells,2011,11(6):745-755. |
| APA | Liao JH.,Li QF.,Rudbeck HC.,Jensen JO.,Chromik A.,...&Xing W.(2011).Oxidative Degradation of Polybenzimidazole Membranes as Electrolytes for High Temperature Proton Exchange Membrane Fuel Cells.fuel cells,11(6),745-755. |
| MLA | Liao JH,et al."Oxidative Degradation of Polybenzimidazole Membranes as Electrolytes for High Temperature Proton Exchange Membrane Fuel Cells".fuel cells 11.6(2011):745-755. |
入库方式： OAI收割
来源：长春应用化学研究所
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