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学科主题: 物理化学
题名: High-Temperature Proton-Exchange-Membrane Fuel Cells Using an Ether-Containing Polybenzimidazole Membrane as Electrolyte
作者: Li, Jin1;  Li, Xiaojin1;  Zhao, Yun1;  Lu, Wangting1;  Shao, Zhigang1;  Yi, Baolian1
通讯作者: 李晓锦 ;  邵志刚
关键词: fuel cells ;  materials science ;  membranes ;  nanotechnology ;  polymers
刊名: CHEMSUSCHEM
发表日期: 2012
DOI: 10.1002/cssc.201100725
卷: 5, 期:5, 页:896-900
收录类别: SCI
文章类型: Article
部门归属: DNL03
项目归属: DNL0301
产权排名: 1,1
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Multidisciplinary
研究领域[WOS]: Chemistry
英文摘要: Herein, poly[2,2'-(p-oxydiphenylene)-5,5'-benzimidazole] (PBI) is synthesized from 3,3'-diaminobenzidine and 4,4'-oxybisbenzoic acid, and the membrane is prepared by solvent casting. The main characteristics of PBI are studied. In the preparation of the PBI/H3PO4 composite membrane, the absorbing temperature of H3PO4 is 120 degrees C, which leads to a membrane with a high content of H3PO4. Membrane electrode assemblies (MEAs) are fabricated from PBI/H3PO4 membranes with the catalyst layer made of Pt/C, PBI, and polyvinylidene fluoride (230:12:7 w/w). The fabricated MEA is tested at 150 degrees C with dry hydrogen and oxygen gas at 0.2 MPa for both anode and cathode feeds. No degradation of voltage is seen during stability testing of the PBI/H3PO4 membrane at a constant current for 100 h. The maximum power density is 1.17 W?cm-2, and the maximum current density is 6.0 A?cm-2 with a Pt loading of 0.5 mg?cm-2. The high performance of these membrane materials demonstrates that PBI can be regarded as an alternative membrane material for high-temperature proton-exchange-membrane fuel cells.
关键词[WOS]: PEMFCS
语种: 英语
WOS记录号: WOS:000303854800011
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/118263
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China

Recommended Citation:
Li, Jin,Li, Xiaojin,Zhao, Yun,et al. High-Temperature Proton-Exchange-Membrane Fuel Cells Using an Ether-Containing Polybenzimidazole Membrane as Electrolyte[J]. CHEMSUSCHEM,2012,5(5):896-900.
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