Carbon coated stainless steel bipolar plates in polymer electrolyte membrane fuel cells

被引：60
作者：
Feng, Kai [1 ,2 ]
Cai, Xun [1 ]
Sun, Hailin [3 ]
Li, Zhuguo [1 ]
Chu, Paul K. [2 ]
机构：
[1] Shanghai Jiao Tong Univ, Sch Mat Sci & Engn, Shanghai Key Lab Mat Laser Proc & Modificat, Shanghai 200240, Peoples R China
[2] City Univ Hong Kong, Dept Phys & Mat Sci, Kowloon, Hong Kong, Peoples R China
[3] Huijin Teer Coatings Co Ltd, Linan 311305, Peoples R China
来源：
DIAMOND AND RELATED MATERIALS | 2010年 / 19卷 / 11期
基金：
中国国家自然科学基金;
关键词：
Carbon film; Bipolar plates; Ion implanting; Conductivity; Corrosion resistance; Hydrophobicity; AMORPHOUS-CARBON; CORROSION; FILMS; PEFC;
D O I：
10.1016/j.diamond.2010.07.003
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The desirable properties of the metallic bipolar plates in polymer electrolyte membrane fuel cells (PEMFC) are good corrosion resistance, high electrical conductance, hydrophobicity, and low cost. In this study, carbon films are deposited on stainless steel 316L (SS316L) samples by close field unbalanced magnetron sputtering. The AFM, SEM, and Raman results show that the carbon film is dense, continuous, and amorphous. The corrosion resistance. hydrophobicity, and interfacial contact resistance (ICR) of the carbon coated steel are investigated and compared to those of uncoated SS316L. The deposited carbon film has high chemical inertness thereby significantly enhancing the corrosion resistance of the coated SS316L Furthermore, the carbon coated SS316L is more hydrophobic and the resulting ICR is elevated to that of graphite. Our results indicate that the properties of the carbon coated SS316L are better than those of conventional graphite bipolar plates. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码：1354 / 1361
页数：8
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