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

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

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Author(s)

Detail(s)

Original languageEnglish
Pages (from-to)1354-1361
Journal / PublicationDiamond and Related Materials
Volume19
Issue number11
Publication statusPublished - Nov 2010

Abstract

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. © 2010 Elsevier B.V.

Research Area(s)

  • Bipolar plates, Carbon film, Conductivity, Corrosion resistance, Hydrophobicity, Ion implanting

Citation Format(s)

Carbon coated stainless steel bipolar plates in polymer electrolyte membrane fuel cells. / Feng, Kai; Cai, Xun; Sun, Hailin et al.
In: Diamond and Related Materials, Vol. 19, No. 11, 11.2010, p. 1354-1361.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review