DICP OpenIR
Hydrophilicity and hydrophobicity study of catalyst layers in proton exchange membrane fuel cells
Yu, HM; Ziegler, C; Oszcipok, M; Zobel, M; Hebling, C; Yu HM(俞红梅); Yu HM(俞红梅)
关键词Hydrophobicity Hydrophilicity Contact Angle Microstructure Membrane Electrode Assembly
刊名ELECTROCHIMICA ACTA
2006-01-05
DOI10.1016/j.electacta.2005.06.036
51期:7页:1199-1207
收录类别SCI
文章类型Article
部门归属3
项目归属301
产权排名2;1
WOS标题词Science & Technology ; Physical Sciences
类目[WOS]Electrochemistry
研究领域[WOS]Electrochemistry
关键词[WOS]CONTACT-ANGLE ; WATER ; SURFACE
英文摘要The catalyst layer is one of the key components of PEMFCs. As the electrochemical reaction occurs at the three-phase interface of the catalyst layer, it is necessary to investigate the hydrophobicity and/or hydrophilicity properties of catalyst layers, which have a large impact on the water transport and even on the performance of the PEMFC. In this paper, time dependent contact angle measurements and porosity analyses have been performed to characterize the catalyst-coated membranes. For the first time, environmental scanning electron microscopy (ESEM) has been used to measure the hydrophilicity and hydrophobicity in the catalyst layer microstructure. The micro-contact angle distribution is given based on the microstructure. It shows a micro-scale hydrophobicity and hydrophilicity study, especially for an inhomogenous material. By means of conventional time-dependent contact angle measurements, porosity measurements and micro-contact angle measurements by ESEM, the hydrophobicity and hydrophilicity of catalyst-coated membranes have been investigated. Useful information has been gained to assist the understanding of catalyst layers from catalyst-coated membranes. (C) 2005 Elsevier Ltd. All rights reserved.
语种英语
原文出处查看原文
WOS记录号WOS:000234818100008
引用统计
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/98133
专题中国科学院大连化学物理研究所
通讯作者Yu HM(俞红梅); Yu HM(俞红梅)
作者单位1.Fraunhofer Inst Solar Energy Syst, D-79110 Freiburg, Germany
2.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
推荐引用方式
GB/T 7714
Yu, HM,Ziegler, C,Oszcipok, M,et al. Hydrophilicity and hydrophobicity study of catalyst layers in proton exchange membrane fuel cells[J]. ELECTROCHIMICA ACTA,2006,51(7):1199-1207.
APA Yu, HM.,Ziegler, C.,Oszcipok, M.,Zobel, M.,Hebling, C.,...&俞红梅.(2006).Hydrophilicity and hydrophobicity study of catalyst layers in proton exchange membrane fuel cells.ELECTROCHIMICA ACTA,51(7),1199-1207.
MLA Yu, HM,et al."Hydrophilicity and hydrophobicity study of catalyst layers in proton exchange membrane fuel cells".ELECTROCHIMICA ACTA 51.7(2006):1199-1207.
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