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学科主题: 物理化学
题名: A Highly Stable Anode, Carbon-Free, Catalyst Support Based on Tungsten Trioxide Nanoclusters for Proton-Exchange Membrane Fuel Cells
作者: Dou, Meiling1, 2;  Hou, Ming1;  Zhang, Huabing1, 2;  Li, Guangfu1, 2;  Lu, Wangting1, 2;  Wei, Zidong3;  Shao, Zhigang1;  Yi, Baolian1
通讯作者: 侯明 ;  邵志刚
关键词: fuel cells ;  heterogeneous catalysis ;  Pt ;  tungsten
刊名: CHEMSUSCHEM
发表日期: 2012
DOI: 10.1002/cssc.201100706
卷: 5, 期:5, 页:945-951
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: Durability is an important issue in proton-exchange membrane fuel cells (PEMFCs). One of the major challenges lies in the degradation caused by the oxidation of the carbon support under high anode potentials (under fuel starvation conditions). Herein, we report highly stable, carbon-free, WO3 nanoclusters as catalyst supports. The WO3 nanoclusters are synthesized through a hard template method and characterized by means of electron microscopy and electrochemical analysis. The electrochemical studies show that the WO3 nanoclusters have excellent electrochemical stability under a high potential (1.6 V for 10 h) compared to Vulcan XC-72. Pt nanoparticles supported on these nanoclusters exhibit high and stable electrocatalytic activity for the oxidation of hydrogen. The catalyst shows negligible loss in electrochemically active surface area (ECA) after an accelerated durability test, whereas the ECA of the Pt nanoparticles immobilized on conventional carbon decreases significantly after the same oxidation condition. Therefore, Pt/WO3 could be considered as a promising alternative anode catalyst for PEMFCs.
关键词[WOS]: WO3 THIN-FILMS ;  METHANOL OXIDATION ;  ELECTROCHROMIC PROPERTIES ;  CO-TOLERANCE ;  OXIDE ;  ELECTROCATALYST ;  STARVATION ;  PLATINUM ;  DURABILITY ;  REVERSAL
语种: 英语
WOS记录号: WOS:000303854800019
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/117743
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, Lab Fuel Cells, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
3.Chongqing Univ, Coll Chem & Chem Engn, State Key Lab Power Transmiss Equipment & Syst Se, Chongqing 400044, Peoples R China

Recommended Citation:
Dou, Meiling,Hou, Ming,Zhang, Huabing,et al. A Highly Stable Anode, Carbon-Free, Catalyst Support Based on Tungsten Trioxide Nanoclusters for Proton-Exchange Membrane Fuel Cells[J]. CHEMSUSCHEM,2012,5(5):945-951.
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