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 | |
刊名 | JOURNAL OF ENERGY CHEMISTRY |
2019-08-01 | |
卷号 | 35页码:95-103 |
关键词 | Proton exchange membrane fuel cell Electrode platinum loading Current-variation cycle Traditional solid plate Water transport plate |
ISSN号 | 2095-4956 |
DOI | 10.1016/j.jechem.2018.09.004 |
通讯作者 | Shao, Zhigang(zhgshao@dicp.ac.cn) |
英文摘要 | The 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. |
资助项目 | National 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] |
WOS关键词 | MEMBRANE FUEL-CELL ; WATER MANAGEMENT ; RELATIVE-HUMIDITY ; CATALYST DEGRADATION ; OPERATING-CONDITIONS ; GAS HUMIDITY ; PERFORMANCE ; TEMPERATURE ; IMPROVEMENT ; TRANSPORT |
WOS研究方向 | Chemistry ; Energy & Fuels ; Engineering |
语种 | 英语 |
出版者 | ELSEVIER SCIENCE BV |
WOS记录号 | WOS:000473220100015 |
资助机构 | 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 ; 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 |
内容类型 | 期刊论文 |
源URL | [http://cas-ir.dicp.ac.cn/handle/321008/175385] |
专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
通讯作者 | Shao, Zhigang |
作者单位 | 1.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 |
推荐引用方式 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. |
个性服务 |
查看访问统计 |
相关权益政策 |
暂无数据 |
收藏/分享 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论