Effect of polytetrafluoroethylene distribution in the gas diffusion layer on water flooding in proton exchange membrane fuel cells
文献类型：期刊论文
| 作者 | Song, Wei; Yu, Hongmei; Shao, Zhigang; Yi, Baolian; Lin, Jin; Liu, Na |
| 刊名 | chinese journal of catalysis
 |
| 出版日期 | 2014-04-01 |
| 卷号 | 35期号:4页码:468-473 |
| 关键词 | Fuel cell Gas diffusion layer Hydrophobicity Water flooding |
| 产权排序 | 待补充 |
| 通讯作者 | 俞红梅 ; 邵志刚 |
| 合作状况 | 英 |
| 英文摘要 | the effect of polytetrafluoroethylene (ptfe) distribution in the gas diffusion layer on water flooding in proton exchange membrane fuel cells was investigated. ptfe was introduced within micropores of carbon papers, to achieve hydrophobicity under different pressures. carbon papers were subjected to vacuum conditions during immersion in ptfe solution to prepare gas diffusion layers. residual gas within the carbon papers was eliminated, and ptfe evenly infused within the pores. cross-sections of the carbon papers indicated that vacuum treatment improved ptfe distribution. the same ptfe content resulted in a decreased water contact angle of the carbon paper because of the greater ptfe content within the micropores. the proportions of hydrophobic and hydrophilic pores within the carbon papers were investigated. the proportion of hydrophobic pores increased during the vacuum treatment. membrane electrode assemblies (meas) were fabricated using the treated hydrophobic carbon papers as gas diffusion layers and were evaluated in a full-sized fuel cell. the uniform ptfe distribution of the carbon paper benefited fuel performance. electrochemical impedance spectroscopy indicated that the improved mea possessed favorable resistance to water flooding. (c) 2014, dalian institute of chemical physics, chinese academy of sciences. published by elsevier b.v. all rights reserved. |
| WOS标题词 | science & technology ; physical sciences ; technology |
| 学科主题 | 物理化学 |
| 类目[WOS] | chemistry, applied ; chemistry, physical ; engineering, chemical |
| 研究领域[WOS] | chemistry ; engineering |
| 关键词[WOS] | durability |
| 收录类别 | SCI |
| 资助信息 | 1，1 |
| 原文出处 | 473 |
| 语种 | 英语 |
| WOS记录号 | WOS:000333781700004 |
| 公开日期 | 2014-09-11 |
| 源URL | [http://159.226.238.44/handle/321008/119762]  |
| 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 | Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Liaoning, Peoples R China |
| 推荐引用方式 GB/T 7714 | Song, Wei,Yu, Hongmei,Shao, Zhigang,et al. Effect of polytetrafluoroethylene distribution in the gas diffusion layer on water flooding in proton exchange membrane fuel cells[J]. chinese journal of catalysis,2014,35(4):468-473. |
| APA | Song, Wei,Yu, Hongmei,Shao, Zhigang,Yi, Baolian,Lin, Jin,&Liu, Na.(2014).Effect of polytetrafluoroethylene distribution in the gas diffusion layer on water flooding in proton exchange membrane fuel cells.chinese journal of catalysis,35(4),468-473. |
| MLA | Song, Wei,et al."Effect of polytetrafluoroethylene distribution in the gas diffusion layer on water flooding in proton exchange membrane fuel cells".chinese journal of catalysis 35.4(2014):468-473. |
入库方式： OAI收割
来源：大连化学物理研究所
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