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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)
关键词Proton Exchange Membrane Fuel Cell Cold Start Catalyst Layer Nanosized Sio(2)
刊名INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
2010-06-01
DOI10.1016/j.ijhydene.2010.03.045
35期:11页:5552-5557
收录类别SCI
文章类型Article
部门归属3
项目归属301
产权排名1;1
WOS标题词Science & Technology ; Physical Sciences ; Technology
类目[WOS]Chemistry, Physical ; Electrochemistry ; Energy & Fuels
研究领域[WOS]Chemistry ; Electrochemistry ; Energy & Fuels
关键词[WOS]TEMPERATURE OPERATION ; ICE FORMATION ; PERFORMANCE ; PEFC ; PEMFC ; PARAMETERS ; STACKS ; DESIGN ; WATER
英文摘要In 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.
语种英语
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WOS记录号WOS:000278967900043
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被引频次:20[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/103639
专题中国科学院大连化学物理研究所
通讯作者Yu HM(俞红梅)
作者单位1.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
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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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