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学科主题: 物理化学
题名: Composition optimization of arc ion plated CrNx films on 316L stainless steel as bipolar plates for polymer electrolyte membrane fuel cells
作者: Zhang, Min1, 3;  Lin, Guoqiang2;  Wu, Bo3;  Shao, Zhigang3
通讯作者: 张敏 ;  邵志刚
关键词: Chromium nitride ;  Stainless steel bipolar plates ;  Arc ion plating ;  Interfacial contact resistance ;  Corrosion resistance
刊名: JOURNAL OF POWER SOURCES
发表日期: 2012-05-01
DOI: 10.1016/j.jpowsour.2012.01.056
卷: 205, 期:1, 页:318-323
收录类别: SCI
文章类型: Article
部门归属: DNL03
项目归属: DNL0301
产权排名: 3,1
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Electrochemistry ;  Energy & Fuels
研究领域[WOS]: Electrochemistry ;  Energy & Fuels
英文摘要: Thin films of CrNx with different nitrogen contents are deposited on 316L stainless steel (SS316L) as bipolar plates for polymer electrolyte membrane fuel cells (PEMFCs) by arc ion plating (AIP) through adjusting nitrogen gas flow rate. The optimal N-2 flow rate and resultant N content in CrNx films are determined by evaluating the interfacial contact resistance (ICR) between carbon papers and the coated samples, and the corrosion resistance in the simulated PEMFC conditions. After coating CrNx films, the performance of SS316L bipolar plates is obviously improved, and has a close relationship with N content in the CrNx films. Compared with the bare SS316L, the CrNx coated SS316L exhibits a reduced ICR by one order of magnitude and the corrosion resistance increases by two orders of magnitude. The results show that CrN0.86 film coated SS316L bipolar plates present best performance, i.e. the ICR of CrN0.86 film coated sample reduces to 8.8 m Omega cm(2) under 1.0 MPa compaction pressure, and the corrosion current density almost reaches 10(-7) A cm(-2). The analysis indicates that the enhanced performance of the coated SS316L bipolar plates is related to the high film density determined by AIP, and the variation of phase structure and film composition. (C) 2012 Elsevier B.V. All rights reserved.
关键词[WOS]: CONTACT RESISTANCE ;  TITANIUM ;  TIN ;  COATINGS
语种: 英语
WOS记录号: WOS:000301828300041
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/118225
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.Liaoning Normal Univ, Sch Phys & Elect Technol, Dalian 116029, Peoples R China
2.Dalian Univ Technol, Lab Mat Modificat Laser Ion & Electron Beams, Dalian 116085, Peoples R China
3.Chinese Acad Sci, Dalian Inst Chem Phys, Fuel Cell R&D Ctr, Dalian 116023, Peoples R China

Recommended Citation:
Zhang, Min,Lin, Guoqiang,Wu, Bo,et al. Composition optimization of arc ion plated CrNx films on 316L stainless steel as bipolar plates for polymer electrolyte membrane fuel cells[J]. JOURNAL OF POWER SOURCES,2012,205(1):318-323.
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