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题名: A fractal model for predicting permeability and liquid water relative permeability in the gas diffusion layer (GDL) of PEMFCs
作者: He, Guangli;  Zhao, Zongchang;  Ming, Pingwen;  Abuliti, Abudula;  Yin, Caoyong
通讯作者: 赵宗昌
关键词: fractal model ;  relative permeability ;  gas diffusion layer (GDL) ;  PEMFC ;  fuel cell
刊名: JOURNAL OF POWER SOURCES
发表日期: 2007
DOI: 10.1016/j.jpowsour.2006.09.054
卷: 163, 期:2, 页:846-852
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;3
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Electrochemistry ;  Energy & Fuels
研究领域[WOS]: Electrochemistry ;  Energy & Fuels
英文摘要: In this study, a fractal model is developed to predict the permeability and liquid water relative permeability of the GDL (TGP-H-120 carbon paper) in proton exchange membrane fuel cells (PEMFCs), based on the micrographs (by SEM, i.e. scanning electron microscope) of the TGP-H-120. Pore size distribution (PSD), maximum pore size, porosity, diameter of the carbon fiber, pore tortuosity, area dimension, hydrophilicity or hydrophobicity, the thickness of GDL and saturation are involved in this model. The model was validated by comparison between the predicted results and experimental data. The results indicate that the water relative permeability in the hydrophobicity case is much higher than in the hydrophilicity case. So, a hydrophobic carbon paper is preferred for efficient removal of liquid water from the cathode of PEMFCs. (c) 2006 Elsevier B.V. All rights reserved.
关键词[WOS]: PERFORMANCE ;  GEOMETRY
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000243650800027
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/98845
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Dalian Univ Technol, Sch Chem Engn, Dalian 116012, Peoples R China
2.Chinese Acad Sci, Fuel Cell R&D Ctr, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
3.Amori Ind Res Ctr, New Energy Rechnol Res Div, Aomori 0300113, Japan

Recommended Citation:
He, Guangli,Zhao, Zongchang,Ming, Pingwen,et al. A fractal model for predicting permeability and liquid water relative permeability in the gas diffusion layer (GDL) of PEMFCs[J]. JOURNAL OF POWER SOURCES,2007,163(2):846-852.
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