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题名: Use of in situ polymerized phenol-formaldehyde resin to modify a Nafion((R)) membrane for the direct methanol fuel cell
作者: Wu, Zhimou;  Sun, Gongquan;  Jin, Wei;  Wang, Qi;  Hou, Hongying;  Chan, Kwong-Yu;  Xin, Qin
关键词: direct methanol fuel cell ;  methanol crossover ;  Nation((R)) ;  phenol-formaldehyde resin ;  composite membrane
刊名: JOURNAL OF POWER SOURCES
发表日期: 2007-05-15
DOI: 10.1016/j.jpowsour.2007.02.037
卷: 167, 期:2, 页:309-314
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: Commercial Nafion (R)-115 (trademark registered to DuPont) membranes were modified by in situ polymerized phenol formaldehyde resin (PFR) to suppress methanol crossover, and SO3- groups were introduced to PFR by post-sulfonatation. A series of membranes with different sulfonated phenol formaldehyde resin (sPFR) loadings have been fabricated and investigated. SEM-EDX characterization shows that the PFR was well dispersed throughout the Nafion (R) membrane. The composite membranes have a similar or slightly lower proton conductivity compared with a native Nafion (R) membrane, but show a significant reduction in methanol crossover (the methanol permeability of sPFR/Nafion (R) composite membrane with 2.3 wt.% sPFR loading was 1.5 x 10(-6) cm(2) s(-1), compared with the 2.5 x 10(-6) cm(2) s(-1) for the native Nafion (R) membrane). In direct methanol fuel cell (DMFC) evaluation, the membrane electrode assembly (MEA) using a composite membrane with a 2.3 wt.% sPFR loading shows a higher performance than that of a native Nafion (R) membrane with 1 M methanol feed, and at higher methanol concentrations (5 M), the composite membrane achieved a 114 mW cm(-2) maximum power density, while the maximum power density of the native Nafion (R) was only 78 mW cm(-2). (c) 2007 Elsevier B.V. All rights reserved.
关键词[WOS]: ALCOHOL NANOCOMPOSITE MEMBRANES ;  COMPOSITE MEMBRANES ;  DMFC ;  PERFORMANCE ;  PERMEATION ;  CROSSOVER ;  STATE
语种: 英语
WOS记录号: WOS:000246542800011
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/140441
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 Cells Lab, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
3.Univ Hong Kong, Dept Chem, Hong Kong, Hong Kong, Peoples R China
4.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China

Recommended Citation:
Wu, Zhimou,Sun, Gongquan,Jin, Wei,et al. Use of in situ polymerized phenol-formaldehyde resin to modify a Nafion((R)) membrane for the direct methanol fuel cell[J]. JOURNAL OF POWER SOURCES,2007,167(2):309-314.
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