Li-jun Yang, Hai-jun Yu, Li-jun Jiang, Lei Zhu, Xu-yu Jian, and Zhong Wang, Graphite-polypyrrole coated 316L stainless steel as bipolar plates for proton exchange membrane fuel cells, Int. J. Miner. Metall. Mater., 18(2011), No. 1, pp.53-58. https://dx.doi.org/10.1007/s12613-011-0399-8
Cite this article as: Li-jun Yang, Hai-jun Yu, Li-jun Jiang, Lei Zhu, Xu-yu Jian, and Zhong Wang, Graphite-polypyrrole coated 316L stainless steel as bipolar plates for proton exchange membrane fuel cells, Int. J. Miner. Metall. Mater., 18(2011), No. 1, pp.53-58. https://dx.doi.org/10.1007/s12613-011-0399-8

Graphite-polypyrrole coated 316L stainless steel as bipolar plates for proton exchange membrane fuel cells

  • 316L stainless steel (SS 316L) is quite attractive as bipolar plates in proton exchange membrane fuel cells (PEMFC). In this study, graphite-polypyrrole was coated on SS 316L by the method of cyclic voltammetry. The surface morphology and chemical composition of the graphite-polypyrrole composite coating were investigated by scanning electron microscopy (SEM) and X-ray photoelectron spectroscopy (XPS). A simulated working environment of PEMFC was applied for testing the corrosion properties of graphite-polypyrrole coated SS 316L. The current densities in the simulated PEMFC anode and cathode conditions are around 3×10-9 and 9×10-5 A·cm-2, respectively. In addition, the interfacial contact resistance (ICR) was also investigated. The ICR value of graphite-polypyrrole coated SS 316L is much lower than that of bare SS 316L. Therefore, graphite-polypyrrole coated SS 316L indicates a great potential for the application in PEMFC.
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