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Kinetic investigation of oxygen reduction reaction in sub-freezing acid media
Song, Wei1,2; Hou, Junbo1,2; Yu, Hongmei1; Hao, Lixing1,2; Shao, Zhigang1; Yi, Baolian1; Yu HM(俞红梅); Yu HM(俞红梅)
关键词Proton Exchange Membrane (Pem) Fuel Cell Pt/c Catalyst Oxygen Reduction Reaction (Orr) Subzero Cold Start
刊名INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
2008-09-01
DOI10.1016/j.ijhydene.2008.06.057
33期:18页:4844-4848
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]PEM FUEL-CELL ; COLD START ; REPETITIVELY BROUGHT ; ELECTRODE-KINETICS ; O-2 REDUCTION ; TEMPERATURE ; PERFORMANCE ; PLATINUM ; DEPENDENCE ; INTERFACE
英文摘要A three-electrode system with 2 M H(2)SO(4) as the electrolyte was developed to investigate the oxygen reduction kinetics on Pt/C catalyst at sub-freezing temperatures. This system successfully avoided the ice formation above -10 degrees C. Furthermore, the influence of different membrane electrode assembly (MEA) status, i.e. the membrane hydration and the electrode structure, on the kinetic results in a sub-freezing fuel cell was diminished in this method. By cyclic voltammetry (CV) test, the electrochemical active surface area (ECA) of PVC catalyst at sub-freezing temperatures was obtained. Results showed that the ECA at sub-freezing temperatures was almost the same as that at room temperature, either the H-desorption or the H-adsorption process at subzero temperatures still took place in the same way. According to the analysis of the linear scan voltammetry (LSV), the kinetics of oxygen reduction on Pt/C catalyst at sub-freezing temperatures was explored. The limiting current density decreased as temperature dropped and the exchange current density at subzero temperatures still obeyed the Arrhenius theory. (c) 2008 International Association for Hydrogen Energy. Published by Elsevier Ltd. All rights reserved.
语种英语
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WOS记录号WOS:000259894000016
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被引频次:6[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/321008/100527
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); Yu HM(俞红梅)
作者单位1.Chinese Acad Sci, Dalian Inst Chem Phys, Lab Fuel Cells, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
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Song, Wei,Hou, Junbo,Yu, Hongmei,et al. Kinetic investigation of oxygen reduction reaction in sub-freezing acid media[J]. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,2008,33(18):4844-4848.
APA Song, Wei.,Hou, Junbo.,Yu, Hongmei.,Hao, Lixing.,Shao, Zhigang.,...&俞红梅.(2008).Kinetic investigation of oxygen reduction reaction in sub-freezing acid media.INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,33(18),4844-4848.
MLA Song, Wei,et al."Kinetic investigation of oxygen reduction reaction in sub-freezing acid media".INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 33.18(2008):4844-4848.
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