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Stable support based on highly graphitic carbon xerogel for proton exchange membrane fuel cells
Jin, Hong1,2; Zhang, Huamin1; Ma, Yuanwei1,2; Xu, Ting1,2; Zhong, Hexiang1; Wang, Meiri1; Zhang HM(张华民)
关键词Proton Exchange Membrane Fuel Cells Carbon Xerogel Carbon Support Durability Accelerated Aging Test
刊名JOURNAL OF POWER SOURCES
2010-10-01
DOI10.1016/j.jpowsour.2010.04.050
195期:19页:6323-6328
收录类别SCI
文章类型Article
部门归属3
项目归属303
产权排名1;1
WOS标题词Science & Technology ; Physical Sciences ; Technology
类目[WOS]Electrochemistry ; Energy & Fuels
研究领域[WOS]Electrochemistry ; Energy & Fuels
关键词[WOS]PLATINUM CATALYST ; ORGANIC AEROGELS ; DURABILITY ; PEMFC ; ELECTRODES ; OXIDATION ; FORMALDEHYDE ; DEGRADATION ; RESORCINOL ; NANOHORNS
英文摘要Highly graphitic carbon xerogel (GCX) is prepared by the modified sol-gel polymerization process using cobalt nitrate as the catalyst, followed by high temperature treatment at 1800 degrees C. The as-prepared GCX is explored as a stable support for Pt in proton exchange membrane fuel cells. The results of N(2) sorption measurement and X-ray diffraction analysis (XRD) reveal that GCX has a better mesoporous structure and a preferably higher degree of graphitization, compared with the commercial XC-72 carbon black. The transmission electron microscopy (TEM) image indicates that Pt nanoparticles are well dispersed on GCX and exhibit relatively narrow size distribution. Accelerated aging test (AAT) based on potential cycling is used to investigate the durability of the as-prepared Pt/GCX in comparison with the commercial Pt/C. Electrochemical analysis demonstrates that the catalyst with GCX as a support exhibits an alleviated degradation rate of electrochemical active surface area (39% for Pt/GCX and 53% for Pt/C). The results of single cell durability tests indicate that the voltage loss of Pt/GCX at 100 mA cm(-2) is about 50% lower than that of Pt/C. GCX is expected to be a corrosion resistant electrocatalyst support. (C) 2010 Elsevier B.V. All rights reserved.
语种英语
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WOS记录号WOS:000279459500009
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被引频次:17[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/103545
专题中国科学院大连化学物理研究所
通讯作者Zhang HM(张华民)
作者单位1.Chinese Acad Sci, Dalian Inst Chem Phys, PEMFC Key Mat & Technol Lab, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
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Jin, Hong,Zhang, Huamin,Ma, Yuanwei,et al. Stable support based on highly graphitic carbon xerogel for proton exchange membrane fuel cells[J]. JOURNAL OF POWER SOURCES,2010,195(19):6323-6328.
APA Jin, Hong.,Zhang, Huamin.,Ma, Yuanwei.,Xu, Ting.,Zhong, Hexiang.,...&张华民.(2010).Stable support based on highly graphitic carbon xerogel for proton exchange membrane fuel cells.JOURNAL OF POWER SOURCES,195(19),6323-6328.
MLA Jin, Hong,et al."Stable support based on highly graphitic carbon xerogel for proton exchange membrane fuel cells".JOURNAL OF POWER SOURCES 195.19(2010):6323-6328.
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