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Characteristics of proton exchange membrane fuel cells cold start with silica in cathode catalyst layers
Miao, Zhili1,2; Yu, Hongmei1; Song, Wei1,2; Hao, Lixing1,2; Shao, Zhigang1; Shen, Qiang1,2; Hou, Junbo1,2; Yi, Baolian1; Yu HM(俞红梅)
KeywordProton Exchange Membrane Fuel Cell Cold Start Catalyst Layer Nanosized Sio(2)
Source PublicationINTERNATIONAL JOURNAL OF HYDROGEN ENERGY
2010-06-01
DOI10.1016/j.ijhydene.2010.03.045
Volume35Issue:11Pages:5552-5557
Indexed BySCI
SubtypeArticle
Department3
Funding Project301
Contribution Rank1;1
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
WOS SubjectChemistry, Physical ; Electrochemistry ; Energy & Fuels
WOS Research AreaChemistry ; Electrochemistry ; Energy & Fuels
WOS KeywordTEMPERATURE OPERATION ; ICE FORMATION ; PERFORMANCE ; PEFC ; PEMFC ; PARAMETERS ; STACKS ; DESIGN ; WATER
AbstractIn this study, a novel strategy is reported to improve the cold start performance of proton exchange membrane (PEM) fuel cells at subzero temperatures. Hydrophilic nano-oxide such as SiO(2) is added into the catalyst layer (CL) of the cathode to increase its water storing capacity. To investigate the effect of nanosized SiO(2) addition, the catalyst coated membranes (CCMs) with 5 wt.% and without nanosized SiO(2) are fabricated. Although at normal operation conditions the cell performance with nanosized SiO(2) was not so good as that without SiO(2), cold start experiments at -8 degrees C showed that the former could start and run even at 100 mA cm(-2) for about 25 min and latter failed very shortly. Even at -10 degrees C, the addition of SiO(2) dramatically increased the running time before the cell voltage dropped to zero. These results further experimentally proved the cold start process was strongly related with the cathode water storage capacity. Also, the performance degradation during 8 cold start cycles was evaluated through polarization curves, cyclic voltammetry (CV) and electrochemical impedance spetra (EIS). Compared with the cell without SiO(2) addition, the cell with 5 wt.% SiO(2) indicated no obvious degradation on cell performance, electrochemical active surface area and charge transfer resistance after experiencing cold start cycles at -8 degrees C. (C) 2010 Professor T. Nejat Veziroglu. Published by Elsevier Ltd. All rights reserved.
Language英语
URL查看原文
WOS IDWOS:000278967900043
Citation statistics
Cited Times:22[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/103639
Collection中国科学院大连化学物理研究所
Corresponding AuthorYu HM(俞红梅)
Affiliation1.Chinese Acad Sci, Dalian Inst Chem Phys, Lab Fuel Cells, Dalian 116023, Liaoning, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
Recommended Citation
GB/T 7714
Miao, Zhili,Yu, Hongmei,Song, Wei,et al. Characteristics of proton exchange membrane fuel cells cold start with silica in cathode catalyst layers[J]. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,2010,35(11):5552-5557.
APA Miao, Zhili.,Yu, Hongmei.,Song, Wei.,Hao, Lixing.,Shao, Zhigang.,...&俞红梅.(2010).Characteristics of proton exchange membrane fuel cells cold start with silica in cathode catalyst layers.INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,35(11),5552-5557.
MLA Miao, Zhili,et al."Characteristics of proton exchange membrane fuel cells cold start with silica in cathode catalyst layers".INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 35.11(2010):5552-5557.
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