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题名: Performance of Ti-Ag-deposited titanium bipolar plates in simulated unitized regenerative fuel cell (URFC) environment
作者: Zhang, Huabing1, 2;  Hou, Ming1;  Lin, Guoqiang3;  Han, Zhiyun3;  Fu, Yu4;  Sun, Shucheng1;  Shao, Zhigang1;  Yi, Baolian1
关键词: Ti-Ag ;  Titanium ;  Bipolar plate ;  Unitized regenerative fuel cell
刊名: INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
发表日期: 2011-05-01
DOI: 10.1016/j.ijhydene.2011.01.154
卷: 36, 期:9, 页:5695-5701
收录类别: SCI
文章类型: Article
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
英文摘要: Titanium with excellent corrosion resistance, good mechanical strength and lightweight is an ideal BPP material for unitized regenerative fuel cell (URFC), but the easy-passivation property accordingly results in poor cell performance. Surface modification is needed to improve the interfacial conductivity. In this study, Ti-Ag film is prepared on TA1 titanium as bipolar plates for URFC by pulsed bias arc ion plating (PBAIP). Interfacial conductivity of Ti-Ag/Ti is improved obviously, presenting an interfacial contact resistance of 4.3 m Omega cm(2) under 1.4 MPa. The results tested by potentiodynamic, potentiostatic and stepwise potentiostatic measures in simulated URFC environments show that Ti-Ag/Ti has good anticorrosion performance, especially at high potential. The corrosion current density of Ti-Ag/Ti is approximately 10(-5.0) A cm(-2), similar to that of uncoated titanium, at 2.00 V (vs. NHE) in a 0.5 M H(2)SO(4) + 5 ppm F(-) solution at 70 degrees C with pressured air purging. Ti-Ag/Ti sample also has low surface energy. The contact angle of the sample with water is 102.7 degrees, which is beneficial for water management in URFC. The bipolar plate with cost-effective Ti-Ag film combines the prominent interfacial conductivity with the excellent corrosion resistance at high potential, showing great potential of application in URFC. Copyright (C) 2011, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
关键词[WOS]: 316L STAINLESS-STEEL ;  CORROSION BEHAVIOR ;  MEMBRANE ;  ALLOYS ;  NITRIDES
语种: 英语
WOS记录号: WOS:000290883100053
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/142689
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, Fuel Cell Syst & Engn Lab, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
3.Dalian Univ Technol, Dalian 116024, Peoples R China
4.Dalian Sunrise Power Co Ltd, Dalian 116025, Peoples R China

Recommended Citation:
Zhang, Huabing,Hou, Ming,Lin, Guoqiang,et al. Performance of Ti-Ag-deposited titanium bipolar plates in simulated unitized regenerative fuel cell (URFC) environment[J]. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,2011,36(9):5695-5701.
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