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学科主题: 物理化学
题名: Improvement of the proton exchange membrane fuel cell (PEMFC) performance at low-humidity conditions by exposing anode in Ultraviolet light
作者: Guo, Xiaoqian1, 2;  Shao, Zhigang1;  Xiao, Yu1;  Zeng, Yachao1, 2;  Liu, Sa1, 2;  Wang, Xunying1, 2;  Yi, Baolian1
通讯作者: 邵志刚
关键词: Proton exchange membrane fuel cell ;  Ultraviolet irradiation ;  Titanium oxide ;  Low-humidity
刊名: ELECTROCHEMISTRY COMMUNICATIONS
发表日期: 2014-07-01
DOI: 10.1016/j.elecom.2014.03.022
卷: 44, 页:16-18
收录类别: SCI
合作性质: 
文章类型: Article
部门归属: DNL03
项目归属: DNL0301
产权排名: 待补充
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Electrochemistry
资助者: 1,1
研究领域[WOS]: Electrochemistry
英文摘要: External humidifying system is generally needed for the fully hydration of membrane and catalyst layer, but it is considered as a barrier to PEMFC all the time. In this study, ultraviolet (UV) light was served as external stimulus to increase the wettability of anode which consists of photo-sensitive hygroscopic materials titanium oxide (TiO2). Under UV irradiation, water adsorbed on the photo-induced oxygen defects of TiO2 and transformed into surface hydroxyl groups. The generated hydroxyl groups furthered the back diffusion and decreased the charge resistance, which improved the performance at the low-humidity condition. The problems on the introduction of excessive hygroscopic materials are avoided by the new method. (C) 2014 Elsevier B.V. All rights reserved.
关键词[WOS]: TIO2 FILMS ;  SURFACE ;  WETTABILITY ;  OPERATION ;  WATER
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000337997400005
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/119735
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 Syst & Engn Lab, Dalian 116023, Liaoning, Peoples R China
2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China

Recommended Citation:
Guo, Xiaoqian,Shao, Zhigang,Xiao, Yu,et al. Improvement of the proton exchange membrane fuel cell (PEMFC) performance at low-humidity conditions by exposing anode in Ultraviolet light[J]. ELECTROCHEMISTRY COMMUNICATIONS,2014,44:16-18.
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