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题名: Cesium substituted 12-tungstophosphoric (Cs(x)H(3-x)PW(12)O(40)) loaded on ceria-degradation mitigation in polymer electrolyte membranes
作者: Zhao, D.2, 3;  Yi, B. L.1, 3;  Zhang, H. M.3;  Yu, H. M.1;  Wang, L.2, 3;  Ma, Y. W.2, 3;  Xing, D. M.4
关键词: Durability ;  12-Tungstophosphoric ;  Ceria ;  Free radicals ;  Peroxide ;  PEMFC
刊名: JOURNAL OF POWER SOURCES
发表日期: 2009-05-15
DOI: 10.1016/j.jpowsour.2008.12.133
卷: 190, 期:2, 页:301-306
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: A novel multifunctional catalyst Cs(x)H(3-x)PW(12)O(40)/CeO(2) was prepared to mitigate the free radical attack to membranes in fuel cell environment. Cs(x)H(3-x)PW(12)O(40)/CeO(2) nanoparticles synthesized by solution-based hydrothermal method and two-step impregnation method were dispersed Uniformly into the Nafion (R) resin, and then the composite membrane was prepared using solution-cast method. The particles prepared were characterized by X-ray powder diffraction (XRD), TEM and FT-IR to evaluate the crystallite size, distribution of the nanopaticles and the crystal structure. The membrane degradation was investigated via ex Situ Fenton test and in situ open Circuit voltage (OCV) accelerated test. In the durability tests, the fluoride emission rate (FER) reduced nearly one order of magnitude by adding Cs(x)H(3-x)PW(12)O(40)/CeO(2) nanoparticles into the Nafion membrane, suggesting that Cs(x)H(3-x)PW(12)O(40)/CeO(2) catalyst has a promising application to greatly improve the proton exchange membrane (PEM) durability. (c) 2009 Elsevier B.V. All rights reserved.
关键词[WOS]: PEM FUEL-CELLS ;  HYDROGEN-PEROXIDE ;  HETEROGENEOUS DEGRADATION ;  CATALYTIC-ACTIVITY ;  ACID ;  DURABILITY ;  OXIDATION ;  ELECTROCATALYSTS ;  NANOPARTICLES ;  PERFORMANCE
语种: 英语
WOS记录号: WOS:000266574300014
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/141541
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, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
3.Chinese Acad Sci, Dalian Inst Chem Phys, Lab PEMFC Key Mat & Technol, Dalian 116023, Liaoning, Peoples R China
4.Sunrise Power Co Ltd, Dalian 116025, Peoples R China

Recommended Citation:
Zhao, D.,Yi, B. L.,Zhang, H. M.,et al. Cesium substituted 12-tungstophosphoric (Cs(x)H(3-x)PW(12)O(40)) loaded on ceria-degradation mitigation in polymer electrolyte membranes[J]. JOURNAL OF POWER SOURCES,2009,190(2):301-306.
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