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
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