DICP OpenIR
Improvement of direct methanol fuel cell performance by modifying catalyst coated membrane structure
Wang, S; Sun, GQ; Wang, GX; Zhou, ZH; Zhao, XS; Sun, H; Fan, XY; Yi, BL; Xin, Q; Sun GQ(孙公权); Sun GQ(孙公权)
KeywordDirect Methanol Fuel Cell Catalyst Coated Membrane Pt Utilization Membrane Electrode Assembly Interface Between Membrane And Catalyst Layer
Source PublicationELECTROCHEMISTRY COMMUNICATIONS
2005-10-01
DOI10.1016/j.elecom.2005.07.003
Volume7Issue:10Pages:1007-1012
Indexed BySCI
SubtypeArticle
Department3
Funding Project305
Contribution Rank1;1
WOS HeadingsScience & Technology ; Physical Sciences
WOS SubjectElectrochemistry
WOS Research AreaElectrochemistry
WOS KeywordLOADING ELECTRODES ; PLATINUM ; MICROSTRUCTURE ; TECHNOLOGY ; TRANSPORT ; CROSSOVER ; LAYERS
AbstractA five-layer catalyst coated membrane (CCM) based upon Nation 115 membrane for direct methanol fuel cell (DMFC) was designed and fabricated by introducing a modified Nafion layer between the membrane and the catalyst layer. The properties of the CCM were determined by SEM, cyclic voltammetry, impedance spectroscopy, ruinous test and I-V curves. The characterizations show that the modified Nation layers provide increased interface contact area and enhanced interaction between the membrane and the catalyst layer. As a result, higher Pt utilization, lower contact resistance and superior durability of membrane electrode assembly was achieved. A 75% Pt utilization efficiency was obtained by using the novel CCM structure, whereas the conventional structure gave 60% efficiency. All these features greatly contribute to the increase in DMFC performance. The DMFC with new CCM structure presented a maximum power density of 260 MW cm(-2), but the DMFC with conventional structure gave only 200 mW cm(-2) under the same operation condition. (c) 2005 Elsevier B.V. All rights reserved.
Language英语
URL查看原文
WOS IDWOS:000232392600007
Citation statistics
Cited Times:52[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/92935
Collection中国科学院大连化学物理研究所
Corresponding AuthorSun GQ(孙公权); Sun GQ(孙公权)
Affiliation1.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
GB/T 7714
Wang, S,Sun, GQ,Wang, GX,et al. Improvement of direct methanol fuel cell performance by modifying catalyst coated membrane structure[J]. ELECTROCHEMISTRY COMMUNICATIONS,2005,7(10):1007-1012.
APA Wang, S.,Sun, GQ.,Wang, GX.,Zhou, ZH.,Zhao, XS.,...&孙公权.(2005).Improvement of direct methanol fuel cell performance by modifying catalyst coated membrane structure.ELECTROCHEMISTRY COMMUNICATIONS,7(10),1007-1012.
MLA Wang, S,et al."Improvement of direct methanol fuel cell performance by modifying catalyst coated membrane structure".ELECTROCHEMISTRY COMMUNICATIONS 7.10(2005):1007-1012.
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