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题名: Chromium nitride films on stainless steel as bipolar plate for proton exchange membrane fuel cell
作者: Wu, Bo1;  Fu, Yu2;  Xu, Jun1;  Lin, Guoqiang1;  Hou, Ming3
通讯作者: Guoqiang Lin
关键词: Chromium nitride ;  Stainless steel bipolar plates ;  Pulsed bias arc ion plating
刊名: JOURNAL OF POWER SOURCES
发表日期: 2009-12-01
DOI: 10.1016/j.jpowsour.2009.06.029
卷: 194, 期:2, 页:976-980
收录类别: SCI
文章类型: Article
部门归属: 3
项目归属: 301
产权排名: 3;5
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: A series of chromium nitride films are prepared on stainless steel substrates by pulsed bias arc ion plating (PBAIP) at different N(2) flow rate as bipolar plates for proton exchange membrane fuel cell (PEMFC). The film chemical composition and phase structure are characterized by X-ray photoelectron spectroscopy (XPS) and X-ray diffractometry (XRD). The characterization results indicate that the nitrogen content of deposited films varies from 0.28 to 0.50, and the phase structure changes from mixtures of Cr + Cr(2)N, pure Cr(2)N through Cr(2)N+CrN, to pure CrN. The interfacial contact resistance between samples and carbon paper is measured by Wang's method, and a minimum value of 5.8 m Omega cm(2) is obtained under 1.2 MPa compaction force. The anticorrosion property is examined by potentiodynamic test in the simulated corrosive circumstance of the PEMFC under 25 degrees C, and the lowest corrosive current density of 5.9 x 10(-7) A cm(-2) is obtained at 0.6V (vs. SCE). Stainless steel substrates coated by the film with lowest contact resistance are chosen as the bipolar plates to assemble cells. An average voltage value of 0.62V is achieved at 500 mA cm(-2), which is close to that of the cell with Ag-plated bipolar plates. Crown Copyright (C) 2009 Published by Elsevier B.V. All rights reserved.
关键词[WOS]: CR-NITRIDES ;  NI-50CR ;  ALLOYS ;  GROWTH ;  COST
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000270620500052
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/102365
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.Sunrise Power Co Ltd, Dalian 116025, Peoples R China
3.Chinese Acad Sci, Dalian Inst Chem Phys, Fuel Cell R&D Ctr, Dalian 116023, Peoples R China

Recommended Citation:
Wu, Bo,Fu, Yu,Xu, Jun,et al. Chromium nitride films on stainless steel as bipolar plate for proton exchange membrane fuel cell[J]. JOURNAL OF POWER SOURCES,2009,194(2):976-980.
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