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题名: RESEARCH OF MODIFICATION OF STAINLESS STEEL BIPOLAR PLATES WITH Cr1-xNx FILMS DEPOSITED BY ARC ION PLATING
作者: Wu Bo1;  Li Hongkai1;  Lin Guoqiang1;  Fu Yu2;  Hou Ming2;  Yi Baolian2
关键词: proton exchange membrane fuel cell (PEMFC) ;  Cr-N film ;  stainless steel bipolar plate ;  arc ion plating ;  contact resistance ;  corrosion resistance
刊名: ACTA METALLURGICA SINICA
发表日期: 2009-09-11
卷: 45, 期:9, 页:1125-1129
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Technology
类目[WOS]: Metallurgy & Metallurgical Engineering
研究领域[WOS]: Metallurgy & Metallurgical Engineering
英文摘要: In the proton exchange membrane fuel cell (PEMFC) with widely applicated future, the bipolar plate plays an important role in supporting the cell stack, collecting current, separating the oxidants from fuels and channeling the oxidants and fuels. The ideal bipolar plate should be of good electric conductivity, high corrosion resistance, high mechanical strength, low gas permeability, low cost and easy processing. Although the stainless steels can be used as bipolar plate materials, their corrosion resistance in fuel cell environment is not satisfied, and the cations induced by metal corrosion would poison the proton exchange membrane. A series of Cr1-xNx (x=0.28-0.50) films were deposited on the surface of stainless steel by arc ion plating (AIP), the composition and phases of Cr1-xNx films and the electric conductivity and corrosion resistance of the modified bipolar plates were tested. The results show that as the value of x varying from 0.28 to 0.50, the phases in the films change from Cr+Cr2N to Cr2N, then to Cr2N+CrN and finally to CrN. The bipolar plates coated with the Cr1-xNx film with single phase structure show good electric conductivity and high corrosion resistance. Comparing with the original stainless steel, the electric conductivity and corrosion resistance of bipolar plates are enhanced by more two orders of magnitude and almost three orders of magnitude, respectively.
关键词[WOS]: CR-NITRIDES ;  FUEL-CELLS ;  NI-50CR ;  ALLOYS ;  GROWTH
语种: 英语
WOS记录号: WOS:000271663400016
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/141550
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.Dalian Univ Technol, Lab Mat Modificat Laser Ion & Electron Beams, Dalian 116085, Peoples R China
2.Chinese Acad Sci, Fuel Cell R&D Ctr, Dalian Inst Chem Phys, Dalian 116023, Peoples R China

Recommended Citation:
Wu Bo,Li Hongkai,Lin Guoqiang,et al. RESEARCH OF MODIFICATION OF STAINLESS STEEL BIPOLAR PLATES WITH Cr1-xNx FILMS DEPOSITED BY ARC ION PLATING[J]. ACTA METALLURGICA SINICA,2009,45(9):1125-1129.
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