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题名: Effect of Nation (R) ionomer aggregation on the structure of the cathode catalyst layer of a DMFC
作者: Wang, Suli;  Sun, Gongquan;  Wu, Zhimou;  Xin, Qin
关键词: direct methanol fuel cell ;  Nation (R) solution ;  aggregation behavior ;  membrane electrode assembly
刊名: JOURNAL OF POWER SOURCES
发表日期: 2007-02-25
DOI: 10.1016/j.jpowsour.2006.11.067
卷: 165, 期:1, 页:128-133
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: The effect of Nafion((R)) ionomer aggregation in solution on the structure of the cathode catalyst layer of a direct methanol fuel cell (DMFQ was investigated by dynamic light scattering (DLS), laser particle sizer, electron probe microanalysis (EPMA) and scanning electron microscopy (SEM). The results showed that large aggregation particles were suppressed by the addition of NaOH to aqueous solutions of Nafion((R)), which led to a smaller agglomerate particle size distribution in the catalyst ink. The cathode catalyst layer made from the catalyst ink with NaOH addition showed a more uniform distribution of sulfur and Pt elements, a higher electrochemical active surface area (48% increase) and achieved a better performance in the DMFC than one made from the catalyst ink without NaOH addition. (c) 2006 Elsevier B.V. All rights reserved.
关键词[WOS]: ELECTROLYTE FUEL-CELLS ;  PLATINUM-LOADING ELECTRODES ;  NAFION MEMBRANES ;  PERFORMANCE ;  METHANOL ;  TECHNOLOGY
语种: 英语
WOS记录号: WOS:000245093800020
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/140504
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, Direct Alcohol Fuel Cell Lab, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China

Recommended Citation:
Wang, Suli,Sun, Gongquan,Wu, Zhimou,et al. Effect of Nation (R) ionomer aggregation on the structure of the cathode catalyst layer of a DMFC[J]. JOURNAL OF POWER SOURCES,2007,165(1):128-133.
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