DICP OpenIR
Effect of electrode Pt-loading and cathode flow-field plate type on the degradation of PEMFC
Qu, Lijuan1,2; Wang, Zhiqiang1; Guo, Xiaoqian1; Song, Wei1; Xie, Feng1; He, Liang1,2; Shao, Zhigang1; Yi, Baolian1
Corresponding AuthorShao, Zhigang(zhgshao@dicp.ac.cn)
KeywordProton exchange membrane fuel cell Electrode platinum loading Current-variation cycle Traditional solid plate Water transport plate
Source PublicationJOURNAL OF ENERGY CHEMISTRY
2019-08-01
ISSN2095-4956
DOI10.1016/j.jechem.2018.09.004
Volume35Pages:95-103
Funding ProjectNational Key Research and Development Program of China[2016YFB0101208] ; NSFC-Liaoning Joint Funding[U1508202] ; National Natural Science Foundations of China[61433013] ; National Natural Science Foundations of China[91434131]
Funding OrganizationNational Key Research and Development Program of China ; National Key Research and Development Program of China ; NSFC-Liaoning Joint Funding ; NSFC-Liaoning Joint Funding ; National Natural Science Foundations of China ; National Natural Science Foundations of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; NSFC-Liaoning Joint Funding ; NSFC-Liaoning Joint Funding ; National Natural Science Foundations of China ; National Natural Science Foundations of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; NSFC-Liaoning Joint Funding ; NSFC-Liaoning Joint Funding ; National Natural Science Foundations of China ; National Natural Science Foundations of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; NSFC-Liaoning Joint Funding ; NSFC-Liaoning Joint Funding ; National Natural Science Foundations of China ; National Natural Science Foundations of China
WOS SubjectChemistry, Applied ; Chemistry, Physical ; Energy & Fuels ; Engineering, Chemical
WOS Research AreaChemistry ; Energy & Fuels ; Engineering
WOS KeywordMEMBRANE FUEL-CELL ; WATER MANAGEMENT ; RELATIVE-HUMIDITY ; CATALYST DEGRADATION ; OPERATING-CONDITIONS ; GAS HUMIDITY ; PERFORMANCE ; TEMPERATURE ; IMPROVEMENT ; TRANSPORT
AbstractThe electrode Pt-loading has an effect on the number of active sites and the thickness of catalyst layer, which has huge influence on the mass transfer and water management during dynamic process in PEMFCs. In this study, membrane electrode assemblies with different Pt-loadings were prepared, and PEMFCs were assembled using those membrane electrode assemblies with traditional solid plate and water transport plate as cathode flow-field plates, respectively. The performance and electrochemical surface area of cells were characterized to evaluate the membrane electrode assemblies degradation after rapid current-variation cycles. Scanning electron microscope and transmission electron microscope were used to investigate the decay of catalyst layers and Pt/C catalyst. With the increase of Pt-loading, the performance degradation of membrane electrode assemblies will be mitigated. But higher Pt-loading means thicker catalyst layer, which leads to a longer pathway of mass transfer, and it may result in carbon material corrosion in membrane electrode assemblies. The decay of Pt/C catalyst in cathode is mainly caused by the corrosion of carbon support, and the degradation of anode Pt/C catalyst is a consequence of migration and aggregation of Pt particles. And using water transport plate is beneficial to alleviating the age of cathode Pt/C catalyst. (C) 2018 Science Press and Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. and Science Press. All rights reserved.
Language英语
Funding OrganizationNational Key Research and Development Program of China ; National Key Research and Development Program of China ; NSFC-Liaoning Joint Funding ; NSFC-Liaoning Joint Funding ; National Natural Science Foundations of China ; National Natural Science Foundations of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; NSFC-Liaoning Joint Funding ; NSFC-Liaoning Joint Funding ; National Natural Science Foundations of China ; National Natural Science Foundations of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; NSFC-Liaoning Joint Funding ; NSFC-Liaoning Joint Funding ; National Natural Science Foundations of China ; National Natural Science Foundations of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; NSFC-Liaoning Joint Funding ; NSFC-Liaoning Joint Funding ; National Natural Science Foundations of China ; National Natural Science Foundations of China
WOS IDWOS:000473220100015
PublisherELSEVIER SCIENCE BV
Citation statistics
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/175387
Collection中国科学院大连化学物理研究所
Corresponding AuthorShao, Zhigang
Affiliation1.Chinese Acad Sci, Dalian Inst Chem Phys, Fuel Cell Syst & Engn Grp, Dalian 116023, Liaoning, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Qu, Lijuan,Wang, Zhiqiang,Guo, Xiaoqian,et al. Effect of electrode Pt-loading and cathode flow-field plate type on the degradation of PEMFC[J]. JOURNAL OF ENERGY CHEMISTRY,2019,35:95-103.
APA Qu, Lijuan.,Wang, Zhiqiang.,Guo, Xiaoqian.,Song, Wei.,Xie, Feng.,...&Yi, Baolian.(2019).Effect of electrode Pt-loading and cathode flow-field plate type on the degradation of PEMFC.JOURNAL OF ENERGY CHEMISTRY,35,95-103.
MLA Qu, Lijuan,et al."Effect of electrode Pt-loading and cathode flow-field plate type on the degradation of PEMFC".JOURNAL OF ENERGY CHEMISTRY 35(2019):95-103.
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