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Determination of ionic resistance and optimal composition in the anodic catalyst layers of DMFC using AC impedance
Zhao, XS; Fan, XY; Wang, SL; Yang, SH; Yi, BL; Xin, Q; Sun, GQ; Sun GQ(孙公权); Sun GQ(孙公权)
关键词Dmfc Ionic Resistance Catalyst Loading Impedance Spectra Methanol Electro-oxidation
刊名INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
2005-08-01
DOI10.1016/j.ijhydene.2005.01.006
30期:9页:1003-1010
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 ; Physical Sciences ; Technology
类目[WOS]Chemistry, Physical ; Electrochemistry ; Energy & Fuels
研究领域[WOS]Chemistry ; Electrochemistry ; Energy & Fuels
关键词[WOS]METHANOL FUEL-CELLS ; GAS-DIFFUSION ELECTRODES ; PROTON CONDUCTIVITY ; SPECTROSCOPY ; RESISTIVITIES ; OXIDATION
英文摘要In the present study, a method based on transmission-line mode for a porous electrode was used to measure the ionic resistance of the anode catalyst layer under in situ fuel cell operation condition. The influence of Nafion content and catalyst loading in the anode catalyst layer on the methanol electro-oxidation and direct methanol fuel cell (DMFC) performance based on unsupported Pt-Ru black was investigated by using the AC impedance method. The optimal Nafion content was found to be 15 wt% at 75 degrees C. The optimal Pt-Ru loading is related to the operating temperature, for example, about 2.0 mg/cm(2) for 75-90 degrees C, 3.0 mg/cm2 for 50 degrees C. Over these values, the cell performance decreased due to the increases in ohmic and mass transfer resistances. It was found that the peak power density obtained was 217 mW/cm(2) with optimal catalyst and Nafion loading at 75 degrees C using oxygen. (c) 2005 International Association for Hydrogen Energy. Published by Elsevier Ltd. All rights reserved.
语种英语
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WOS记录号WOS:000229710200009
引用统计
被引频次:50[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/93303
专题中国科学院大连化学物理研究所
通讯作者Sun GQ(孙公权); Sun GQ(孙公权)
作者单位Direct Alcohol Fuel Cell Lab, Chinese Acad Sci, Dalian Inst Chem Phys, Liaoning 116023, Peoples R China
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GB/T 7714
Zhao, XS,Fan, XY,Wang, SL,et al. Determination of ionic resistance and optimal composition in the anodic catalyst layers of DMFC using AC impedance[J]. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,2005,30(9):1003-1010.
APA Zhao, XS.,Fan, XY.,Wang, SL.,Yang, SH.,Yi, BL.,...&孙公权.(2005).Determination of ionic resistance and optimal composition in the anodic catalyst layers of DMFC using AC impedance.INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,30(9),1003-1010.
MLA Zhao, XS,et al."Determination of ionic resistance and optimal composition in the anodic catalyst layers of DMFC using AC impedance".INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 30.9(2005):1003-1010.
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