Electrochemical Characteristic of Cr-Based Film Coated 304SS as PEMFC Bipolar Plates
By using electrochemical techniques, the electrochemical characteristic of Cr-based film coated 304 stainless steel (304SS) as proton exchange membrane fuel cell (PEMFC) bipolar plates, which was deposited by cathodic arc deposition technology, was studied. The results indicated that Cr, CrN, (TiCr)N and (TiN+Ti) film could not only decreased the steel’s contact resistance but also improved its corrosion resistance and the fuel cell stack’s performance. Since Cr, (CrN) and (TiCrN) film were more compact than (TiN+Ti) film, which contained the oxides of Ti, as bipolar plates, the performance for all film change in the following order: Cr film ≈(CrN) film ≈ (TiCrN) film >(TiN+Ti) film.
Guojun Zhang and Jessica Xu
N. B. Huang et al., "Electrochemical Characteristic of Cr-Based Film Coated 304SS as PEMFC Bipolar Plates", Advanced Materials Research, Vols. 160-162, pp. 1469-1475, 2011