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题名: Durability study of KOH doped polybenzimidazole membrane for air-breathing alkaline direct ethanol fuel cell
作者: Hou, Hongying1;  Wang, Suli1;  Jiang, Qian1, 2;  Jin, Wei1, 2;  Jiang, Luhua1;  Sun, Gongquan1
关键词: KOH doped polybenzimidazole ;  Durability ;  Air-breathing ;  Alkali direct ethanol fuel cell
刊名: JOURNAL OF POWER SOURCES
发表日期: 2011-03-15
DOI: 10.1016/j.jpowsour.2010.11.104
卷: 196, 期:6, 页:3244-3248
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: Recently, KOH doped polybenzimidazole (PBI/KOH) membrane has been reported as polymer electrolyte membrane for alkaline direct alcohol fuel cell (ADAFC), but little is known about its durability for ADAFC application. In this paper, the durability of PBI/KOH membrane for air-breathing alkaline direct ethanol fuel cell (ADEFC) is evaluated by means of ex situ and in situ tests. In the case of ex situ durability test, the ionic conductivity of PBI/KOH degrades from initial 0.023 S cm(-1) to 0.01 S cm(-1) after 100 h, and the degrading rate was 1.3 x 10(-4) S cm(-1) h(-1). As for in situ test. Pt-free air-breathing ADEFC with PBI/KOH membrane can output a peak power density of 16 mW cm(-2) at 60 degrees C. Moreover, it can stably operate for 336 h above 0.3 V. In addition, the interaction between KOH and PBI matrix is also explored by density functional theory study. (c) 2010 Elsevier B.V. All rights reserved.
关键词[WOS]: ANION-EXCHANGE MEMBRANES ;  SODIUM-BOROHYDRIDE ;  DIRECT ALCOHOL ;  METHANOL ;  ELECTROLYTE ;  ELECTRODIALYSIS ;  CONDUCTIVITY ;  PERFORMANCE ;  RADIATION
语种: 英语
WOS记录号: WOS:000287058800039
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/142607
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, Direct Alcohol Fuel Cells Lab, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China

Recommended Citation:
Hou, Hongying,Wang, Suli,Jiang, Qian,et al. Durability study of KOH doped polybenzimidazole membrane for air-breathing alkaline direct ethanol fuel cell[J]. JOURNAL OF POWER SOURCES,2011,196(6):3244-3248.
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