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题名: High-Water-Discharge Gas Diffusion Backing Layer of the Cathode for Direct Methanol Fuel Cells
作者: Gao, Yan1, 2;  Sun, Gongquan1;  Wang, Suli1;  Sun, Hai1, 2;  Mao, Qing1, 2
通讯作者: 孙公权
刊名: ENERGY & FUELS
发表日期: 2008-11-01
DOI: 10.1021/ef800502n
卷: 22, 期:6, 页:4098-4101
收录类别: SCI
文章类型: Article
部门归属: 3
项目归属: 305
产权排名: 1;1
WOS标题词: Science & Technology ;  Technology
类目[WOS]: Energy & Fuels ;  Engineering, Chemical
研究领域[WOS]: Energy & Fuels ;  Engineering
英文摘要: A high-water-discharge gas diffusion backing layer (HBL) of the cathode for direct methanol fuel cells (DMFCs) was prepared by means of spreading diluted polytetrafluoroethylene (PTFE) solution on one-side of carbon paper and heat treatment at 340 degrees C for 30 min. The structural characterization of the HBL by a scanning electron microscope (SEM) and an energy-dispersive X-ray (EDX) showed that most PTFE existed on the sprayed PTFE side of the HBL. In comparison to the traditional backing layer prepared by impregnating carbon paper in diluted PTFE solution (TBL), the HBL showed higher gas permeability and water-discharging ability. The electrochemical impedance spectroscopy (EIS) of DMFC with HBL also proved better mass-transport ability than that of TBL, and a higher single-cell performance based on the HBL was obtained at 60 degrees C, 1 M methanol solution feeding at 1 mL min(-1), and ambient pressure air at 80 mL min(-1).
关键词[WOS]: HYDROPHOBIC POLYMER CONTENT ;  PERFORMANCE ;  PEMFC ;  ELECTRODES ;  IMPEDANCE
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000261057100072
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/101409
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.Chinese Acad Sci, 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

Recommended Citation:
Gao, Yan,Sun, Gongquan,Wang, Suli,et al. High-Water-Discharge Gas Diffusion Backing Layer of the Cathode for Direct Methanol Fuel Cells[J]. ENERGY & FUELS,2008,22(6):4098-4101.
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