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学科主题: 物理化学
题名: Formation of an integrated catalyst-coated membrane using electrohydrodynamic atomization Layer-by-Layer deposition for direct methanol fuel cells
作者: Wang, Dazhi1, 2;  Wang, Liang1;  Liang, Junsheng1, 2;  Xia, Zhangxun3;  Wang, Suli3;  Zhu, Yingli4;  Liu, Chong1, 2;  Sun, Gongquan3
通讯作者: Dazhi Wang
关键词: Direct methanol fuel cell ;  Catalyst-coated membrane ;  Electrohydrodynamic atomization ;  Layer-by-Layer deposition
刊名: JOURNAL OF POWER SOURCES
发表日期: 2013-02-15
DOI: 10.1016/j.jpowsour.2012.09.092
卷: 224, 页:202-210
收录类别: SCI
合作性质: 
文章类型: Article
部门归属: DNL03
项目归属: DNL0305
产权排名: 待补充
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Electrochemistry ;  Energy & Fuels
资助者: 3,4
研究领域[WOS]: Electrochemistry ;  Energy & Fuels
英文摘要: In this work, an integrated catalyst-coated membrane (CCM) is prepared by successively spray deposit Pt/C nano-suspension, Nafion solution and Pt-Ru/C nano-suspension on a cathode gas diffusion layer using electrohydrodynamic atomization (EHDA) Layer-by-Layer (LbL) deposition. Porous cathode and anode catalyst layers and dense Nafion membrane are deposited using the EHDA LbL deposition technique. It is also found that the EHDA LbL deposited CCM presents close packed structure. An 85 h life test shows that the EHDA LbL deposited cathode electrode side of the integrated CCM still presents well compact feature. Whereas, the delamination of the anode electrode side formed by direct pressing method is evident. The performance of the cell with different methanol concentrations is also examined. It is found that the 3 M methanol concentration gives the highest cell performance. Moreover, the polarization behaviour, methanol crossover and impedance response of the cell at different working temperatures are analysed. The cell performance demonstrates faster increase between 20 degrees C and 50 degrees C than between 50 degrees C and 70 degrees C. The methanol crossover test shows that the cell presents higher increase level of methanol crossover between 40 degrees C and 50 degrees C than other 10 degrees C temperature increase steps. (c) 2012 Elsevier B.V. All rights reserved.
关键词[WOS]: ELECTRODE ASSEMBLIES ;  PERFORMANCE ;  DMFC ;  CROSSOVER ;  MODES ;  MEAS
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000313390400028
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/119113
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, Key Lab Micro Nano Technol & Syst Liaoning Prov, Dalian 116024, Peoples R China
2.Dalian Univ Technol, Minist Educ, Key Lab Precis & Nontradit Machining Technol, Dalian 116024, Peoples R China
3.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
4.Tianjin Univ Sci & Technol, Sch Mech Engn, Tianjin 300222, Peoples R China

Recommended Citation:
Wang, Dazhi,Wang, Liang,Liang, Junsheng,et al. Formation of an integrated catalyst-coated membrane using electrohydrodynamic atomization Layer-by-Layer deposition for direct methanol fuel cells[J]. JOURNAL OF POWER SOURCES,2013,224:202-210.
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