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A new hydrophobic thin film catalyst layer for PEMFC
Song, Wei1,2; Yu, Hongmei1; Hao, Lixing1,2; Miao, Zhili1,2; Yi, Baolian1; Shao, Zhigang1; Yu HM(俞红梅)
关键词Fuel Cell Proton Exchange Membrane (Pem) Thin Film Catalyst Layer Ptfe Decal Method
刊名SOLID STATE IONICS
2010-03-29
DOI10.1016/j.ssi.2010.01.022
181期:8-10页:453-458
收录类别SCI
文章类型Article
部门归属3
项目归属301
产权排名1;1
WOS标题词Science & Technology ; Physical Sciences
类目[WOS]Chemistry, Physical ; Physics, Condensed Matter
研究领域[WOS]Chemistry ; Physics
关键词[WOS]MEMBRANE FUEL-CELLS ; ELECTROCHEMICAL IMPEDANCE ; EMPIRICAL-EQUATION ; DIFFUSION LAYER ; MASS-TRANSPORT ; PERFORMANCE ; CATHODE ; ELECTRODES ; TEMPERATURE ; FABRICATION
英文摘要A new hydrophobic thin film catalyst layer (CL) was prepared by the decal method in this work. Polytetrafluoroethylene (PTFE) was introduced to the catalyst ink with 1 wt.% Nafion (R) ionomer as the hyperdispersant. Aluminum foil was adopted as the transferring medium which enabled the sintering process of PTFE. Then an appropriate amount of Nafion (R) ionomer was sprayed onto the CL for proton conduction. At last, the CL was transferred onto a Nafion (R) membrane and the catalyst-coated membrane (CCM) was formed. Contact angle measurement and mercury intrusion porosimetry test were conducted to characterize the hydrophobicity and porosity of the thin film CL The results showed that PTFE addition favored the CL hydrophobicity and porosity. The optimal PTFE content was also deduced by comparing the fuel cell performance under different PTFE contents. Electrochemical analysis revealed that PTFE addition decreased the electrochemical active area (ECA) but enhanced the diffusion process in the CL (C) 2010 Elsevier B.V. All rights reserved.
语种英语
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WOS记录号WOS:000276781300013
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文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/103623
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)
作者单位1.Chinese Acad Sci, Dalian Inst Chem Phys, Lab Fuel Cells, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
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Song, Wei,Yu, Hongmei,Hao, Lixing,et al. A new hydrophobic thin film catalyst layer for PEMFC[J]. SOLID STATE IONICS,2010,181(8-10):453-458.
APA Song, Wei.,Yu, Hongmei.,Hao, Lixing.,Miao, Zhili.,Yi, Baolian.,...&俞红梅.(2010).A new hydrophobic thin film catalyst layer for PEMFC.SOLID STATE IONICS,181(8-10),453-458.
MLA Song, Wei,et al."A new hydrophobic thin film catalyst layer for PEMFC".SOLID STATE IONICS 181.8-10(2010):453-458.
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