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题名: Tungsten trioxide hydrate incorporated Nafion composite membrane for proton exchange membrane fuel cells operated above 100 degrees C
作者: Shao, Zhi-Gang;  Xu, Hongfeng;  Hsing, I-Ming;  Zhang, Huamin
关键词: high temperature ;  Nafion membrane ;  PEMFC ;  tungsten trioxide hydrate
刊名: CHEMICAL ENGINEERING COMMUNICATIONS
发表日期: 2007
DOI: 10.1080/00986440600992818
卷: 194, 期:5, 页:667-674
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Technology
类目[WOS]: Engineering, Chemical
研究领域[WOS]: Engineering
英文摘要: A new composite membrane is fabricated by incorporating tungsten trioxide hydrate into Nafion to be employed as a candidate electrolyte for proton exchange membrane fuel cells (PEMFCs) operated above 100 degrees C. Thermal behavior and proton conductivity of the composite membrane are studied by means of thermogravimetric/differential thermal analyis (TG/DTA) and AC impedance measurements, respectively. These results demonstrate that the thermal stability of the composite membrane has no appreciable change when compared with the native Nafion membrane. The proton conductivity of the composite membrane is found to be better than that of the native Nafion membrane at high temperature and lower relative humidity. When the composite membrane is used as an electrolyte in H-2/O-2 PEMFC under the operating conditions of 110 degrees C, 1.36 atm gas pressure, and 70% relative humidity, the observed current density value at 0.4V is 1.5 times higher than that of the cell employing native Nafion membrane as an electrolyte.
关键词[WOS]: HIGH-TEMPERATURE OPERATION ;  MAGNETIC-RESONANCE ;  ACID ;  TRANSPORT
语种: 英语
WOS记录号: WOS:000245642700008
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/140579
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, Fuel Cell R&D Ctr, Dalian 116023, Peoples R China
2.Dalian Jiaotong Univ, Dalian, Peoples R China
3.Hong Kong Univ Sci & Technol, Dept Chem Engn, Hong Kong, Hong Kong, Peoples R China

Recommended Citation:
Shao, Zhi-Gang,Xu, Hongfeng,Hsing, I-Ming,et al. Tungsten trioxide hydrate incorporated Nafion composite membrane for proton exchange membrane fuel cells operated above 100 degrees C[J]. CHEMICAL ENGINEERING COMMUNICATIONS,2007,194(5):667-674.
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