中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Application of hyperdispersant to the cathode diffusion layer for direct methanol fuel cell

文献类型:期刊论文

作者Mao, Qing1,2; Sun, Gongquan1; Wang, Suli1; Sun, Hai1; Tian, Yang1,2; Tian, Juan1,2; Xin, Oin1
刊名journal of power sources
出版日期2008-01-10
卷号175期号:2页码:826-832
关键词polytetrafluoroethylene hyperdispersant agglomeration behavior gas diffusion layer water management direct methanol fuel cell
产权排序1;1
通讯作者孙公权
英文摘要in this study, nation ionomer, as a kind of hyperdispersant, was added to poly tetrafluoroethylene (ptfe) water dispersion system to suppress the size of ptfe particles in the ink of microporous layer (mpl). the agglomeration behavior of ptfe in ethanol and mpl were investigated by laser diffraction, dynamic light scattering (dls) and metallurgical microscopes. the electronic resistance, pore size distribution, gas permeability and surface hydrophobic/hydrophilic properties were also characterized for prepared gas diffusion layers (gdls). it was shown that ptfe water dispersion system suffered flocculating when dispersed in ethanol and this agglomeration behavior was reduced by employing nafion ionomer. with the increase in the nafion ionomer adopted in the mpl, not only the decreased hydrophobic property was shown in the mpl, but the decreased ptfe particle size was also achieved, which results in improved crosslink of carbon and pores themselves as well as the volume loss of pores in micron scale. the increased gas permeability and electronic conductivity of the gdl made the one employing the ptfe dispersion system with 1% nation content own its advantages as the cathode diffusion layer for a direct methanol fuel cell (dmfc) under near-ambient conditions. (c) 2007 elsevier b.v. all rights reserved.
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]performance ; electrodes ; pemfc ; water ; transport ; membranes
收录类别SCI
原文出处true
语种英语
WOS记录号WOS:000252634300016
公开日期2010-11-30
源URL[http://159.226.238.44/handle/321008/100877]  
专题大连化学物理研究所_中国科学院大连化学物理研究所
作者单位1.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
推荐引用方式
GB/T 7714
Mao, Qing,Sun, Gongquan,Wang, Suli,et al. Application of hyperdispersant to the cathode diffusion layer for direct methanol fuel cell[J]. journal of power sources,2008,175(2):826-832.
APA Mao, Qing.,Sun, Gongquan.,Wang, Suli.,Sun, Hai.,Tian, Yang.,...&Xin, Oin.(2008).Application of hyperdispersant to the cathode diffusion layer for direct methanol fuel cell.journal of power sources,175(2),826-832.
MLA Mao, Qing,et al."Application of hyperdispersant to the cathode diffusion layer for direct methanol fuel cell".journal of power sources 175.2(2008):826-832.

入库方式: OAI收割

来源:大连化学物理研究所

浏览0
下载0
收藏0
其他版本

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。