Conductive amorphous carbon-coated 316L stainless steel as bipolar plates in polymer electrolyte membrane fuel cells

Kai Feng; Yao Shen; Hailin Sun; Dongan Liu; Quanzhang An; Xun Cai; Paul K. Chu

doi:10.1016/j.ijhydene.2009.06.030

Author(s)

Kai Feng
Yao Shen
Hailin Sun
Dongan Liu
Quanzhang An
Xun Cai

Detail(s)

Original language	English
Pages (from-to)	6771-6777
Journal / Publication	International Journal of Hydrogen Energy
Volume	34
Issue number	16
Publication status	Published - Aug 2009

Link(s)

DOI	DOI https://doi.org/10.1016/j.ijhydene.2009.06.030 Final Published version
	Check@CityULib
Link to Scopus	https://www.scopus.com/record/display.uri?eid=2-s2.0-68749114983&origin=recordpage
Permanent Link	https://scholars.cityu.edu.hk/en/publications/publication(6ab5956d-1177-481b-bcb3-a6731f911d28).html

Abstract

Amorphous carbon (a-C) film about 3 μm in thickness is coated on 316L stainless steel by close field unbalanced magnetron sputter ion plating (CFUBMSIP). The AFM and Raman results reveal that the a-C coating is dense and compact with a small size of graphitic crystallite and large number of disordered band. Interfacial contact resistance (ICR) results show that the surface conductivity of the bare SS316L is significantly increased by the a-C coating, with values of 8.3-5.2 mΩ cm² under 120-210 N/cm². The corrosion potential (E_corr) shifts from about -0.3 V vs SCE to about 0.2 V vs SCE in both the simulated anode and cathode environments. The passivation current density is reduced from 11.26 to 3.56 μA/cm² with the aid of the a-C coating in the simulated cathode environment. The a-C coated SS316L is cathodically protected in the simulated anode environment thereby exhibiting a stable and lower current density compared to the uncoated one in the simulated anode environment as demonstrated by the potentiostatic results. © 2009 International Association for Hydrogen Energy.

Research Area(s)

Bipolar plate, Carbon film, Close field unbalanced magnetron sputter ion plating, Polymer electrolyte membrane fuel cells, Stainless steel 316

Citation Format(s)

[ RIS ] [ BibTeX ]

Conductive amorphous carbon-coated 316L stainless steel as bipolar plates in polymer electrolyte membrane fuel cells. / Feng, Kai; Shen, Yao; Sun, Hailin et al.

In: International Journal of Hydrogen Energy, Vol. 34, No. 16, 08.2009, p. 6771-6777.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review

Feng, K, Shen, Y, Sun, H, Liu, D, An, Q, Cai, X & Chu, PK 2009, 'Conductive amorphous carbon-coated 316L stainless steel as bipolar plates in polymer electrolyte membrane fuel cells', International Journal of Hydrogen Energy, vol. 34, no. 16, pp. 6771-6777. https://doi.org/10.1016/j.ijhydene.2009.06.030

Feng, K., Shen, Y., Sun, H., Liu, D., An, Q., Cai, X., & Chu, P. K. (2009). Conductive amorphous carbon-coated 316L stainless steel as bipolar plates in polymer electrolyte membrane fuel cells. International Journal of Hydrogen Energy, 34(16), 6771-6777. https://doi.org/10.1016/j.ijhydene.2009.06.030

Feng K, Shen Y, Sun H, Liu D, An Q, Cai X et al. Conductive amorphous carbon-coated 316L stainless steel as bipolar plates in polymer electrolyte membrane fuel cells. International Journal of Hydrogen Energy. 2009 Aug;34(16):6771-6777. doi: 10.1016/j.ijhydene.2009.06.030

Feng, Kai ; Shen, Yao ; Sun, Hailin et al. / Conductive amorphous carbon-coated 316L stainless steel as bipolar plates in polymer electrolyte membrane fuel cells. In: International Journal of Hydrogen Energy. 2009 ; Vol. 34, No. 16. pp. 6771-6777.