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题名: Porous polybenzimidazole membranes with excellent chemical stability and ion conductivity for direct borohydride fuel cells
作者: Chen, Dongju1;  Yu, Shanshan1;  Liu, Xue1;  Li, Xianfeng2
关键词: Polybenzimidazole ;  Porous membrane ;  Direct borohydride fuel cell
刊名: JOURNAL OF POWER SOURCES
发表日期: 2015-05-15
DOI: 10.1016/j.jpowsour.2015.02.082
卷: 282, 页:323-327
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Electrochemistry ;  Energy & Fuels
研究领域[WOS]: Electrochemistry ;  Energy & Fuels
英文摘要: Porous membranes based on polybenzimidazole (PBI) are firstly introduced in direct borohydride fuel cell application (DBFC). Membranes with different thicknesses and porosity are successfully fabricated via water vapor phase inversion process. The prepared membranes show excellent ion conductivity and chemical stability under DBFC operating condition. Compare with Nafion 115, the prepared membranes show higher ion conductivity, as a result, much higher peak power density. No weight loss is observed after immersing the prepared membranes in a 3 M NaOH solution for 30 days, indicating the excellent chemical stability of porous PBI membranes. And the DBFC cells assembled with prepared membranes could discharge at 200 mA cm(-2) for more than 250 h without voltage decay, which is the longest time reported by far. This work provides a totally new idea for fabricating versatile DBFC membranes. (C) 2015 Elsevier B.V. All rights reserved.
关键词[WOS]: ANION-EXCHANGE MEMBRANES ;  REDOX FLOW BATTERY ;  FREE-VOLUME MODEL ;  ELECTROLYTES ;  SEPARATION ;  STEP
语种: 英语
WOS记录号: WOS:000351963900039
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/146119
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.Liaoning Normal Univ, Sch Chem & Chem Engn, Dalian 116029, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, Div Energy Storage, Dalian 116023, Peoples R China

Recommended Citation:
Chen, Dongju,Yu, Shanshan,Liu, Xue,et al. Porous polybenzimidazole membranes with excellent chemical stability and ion conductivity for direct borohydride fuel cells[J]. JOURNAL OF POWER SOURCES,2015,282:323-327.
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