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材料工程  2016, Vol. 44 Issue (10): 33-40    DOI: 10.11868/j.issn.1001-4381.2016.10.005
  材料与工艺 本期目录 | 过刊浏览 | 高级检索 |
CrN和CrNiN涂层在模拟质子交换膜燃料电池环境中的电化学性能及疏水性能
金杰, 韩岁伍, 安腾, 马君杰, 张伟
浙江工业大学 材料科学与工程学院, 杭州 310014
Electrochemical Behavior and Hydrophobic Properties of CrN and CrNiN Coatings in Simulated Proton Exchange Membrane Fuel Cell Environment
JIN Jie, HAN Sui-wu, AN Teng, MA Jun-jie, ZHANG Wei
School of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou 310014, China
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摘要 用闭合场非平衡磁控溅射离子镀在304不锈钢表面沉积CrN和CrNiN涂层。采用X射线衍射和场发射扫描电镜表征涂层的结构和形貌。采用电化学测试、界面接触电阻测试以及疏水性测试等方法,研究两种不同涂层在模拟质子交换膜燃料电池(Proton Exchange Membrane Fuel Cell,PEMFC)环境下的电化学腐蚀性能、界面接触电阻以及疏水性能。结果表明:CrN涂层主要包含CrN和Cr2N相,CrNiN涂层中CrN和Cr2N相较少,Ni在CrNiN涂层中以单质形式存在;动态极化测试表明涂层的耐蚀性能较好,其中CrNiN涂层的耐蚀性能较CrN涂层差,恒电位极化测试表明CrN和CrNiN涂层的电流密度相当;CrN和CrNiN涂层都显著降低了304不锈钢的界面接触电阻,其中CrN涂层的接触电阻最小;CrNiN涂层疏水性能优于CrN涂层,更有利于质子交换膜燃料电池中的水管理。
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金杰
韩岁伍
安腾
马君杰
张伟
关键词 质子交换膜燃料电池双极板PVD涂层耐腐蚀性能接触电阻水接触角    
Abstract:The CrN and CrNiN coatings were prepared on the surface of 304 stainless steel by closed field unbalanced magnetron sputtering.X ray diffraction and field emission scanning electron microscopy were used to characterize the structure and morphology of the coatings.The electrochemical corrosion properties under the simulated proton exchange membrane fuel cell(PEMFC) environment, interfacial contact resistance and hydrophobic properties of the two kinds of different coatings were investigated by electrochemical methods,contact resistance test and hydrophobic test,respectively.The results indicate that CrN coating mainly consists of CrN and Cr2N phase,CrN and Cr2N phases in the CrNiN coating are less compared to CrN film, and Ni exist as element in CrNiN coating; dynamic polarization tests show the coating is of better corrosion resistance,whereas the corrosion resistance of CrNiN coating is worse than that of CrN coating,constant potential polarization test shows the corrosion current density of CrN and CrNiN coatings are equivalent; CrN and CrNiN coatings significantly reduce the interfacial contact resistance of the 304 stainless steel,among which CrN coating has the smallest contact resistance; and CrNiN coating which has better hydrophobicity than that of CrN coating is more beneficial for the water management in proton exchange membrane fuel cell.
Key wordsproton exchange membrane fuel cell bipolar plate    PVD coating    corrosion resistance    contact resistance    water contact angle
收稿日期: 2015-08-10      出版日期: 2016-10-20
中图分类号:  TM911.4  
通讯作者: 金杰(1964-),男,教授,博士,研究方向为材料表面改性,联系地址:浙江省杭州市下城区潮王路18号浙江工业大学机械楼B308室(310014),E-mail:jinjie@zjut.edu.cn     E-mail: jinjie@zjut.edu.cn
引用本文:   
金杰, 韩岁伍, 安腾, 马君杰, 张伟. CrN和CrNiN涂层在模拟质子交换膜燃料电池环境中的电化学性能及疏水性能[J]. 材料工程, 2016, 44(10): 33-40.
JIN Jie, HAN Sui-wu, AN Teng, MA Jun-jie, ZHANG Wei. Electrochemical Behavior and Hydrophobic Properties of CrN and CrNiN Coatings in Simulated Proton Exchange Membrane Fuel Cell Environment. Journal of Materials Engineering, 2016, 44(10): 33-40.
链接本文:  
http://jme.biam.ac.cn/CN/10.11868/j.issn.1001-4381.2016.10.005      或      http://jme.biam.ac.cn/CN/Y2016/V44/I10/33
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