DICP OpenIR
Subject Area物理化学
Effect of polytetrafluoroethylene distribution in the gas diffusion layer on water flooding in proton exchange membrane fuel cells
Song, Wei; Yu, Hongmei; Shao, Zhigang; Yi, Baolian; Lin, Jin; Liu, Na; Yu HM(俞红梅); Shao ZG(邵志刚)
KeywordFuel Cell Gas Diffusion Layer Hydrophobicity Water Flooding
Source PublicationCHINESE JOURNAL OF CATALYSIS
2014-04-01
DOI10.1016/51872-2067(14)60014-0
Volume35Issue:4Pages:468-473
Indexed BySCI
Cooperation Status
SubtypeArticle
DepartmentDNL03
Funding ProjectDNL0301
Contribution Rank待补充
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
Funding Organization1,1 ; 1,1 ; 1,1 ; 1,1
WOS SubjectChemistry, Applied ; Chemistry, Physical ; Engineering, Chemical
WOS Research AreaChemistry ; Engineering
WOS KeywordDURABILITY
AbstractThe 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.
Language英语
Funding Organization1,1 ; 1,1 ; 1,1 ; 1,1
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WOS IDWOS:000333781700004
Citation statistics
Cited Times:9[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/119762
Collection中国科学院大连化学物理研究所
Corresponding AuthorYu HM(俞红梅); Shao ZG(邵志刚)
AffiliationChinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Liaoning, Peoples R China
Recommended Citation
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.,...&邵志刚.(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.
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