Investigation of the effects of electrophoretic deposition parameters on 304SS steel coated with graphene oxide for PEMFC application. (2020) - Mandal, Pramod
Abstract: Electrophoretic deposition was used to deposit graphene oxide on 304 stainless steel to mitigate the aggressive corrosion that occurs in steel bipolar plates of polymer electrolyte membrane (PEM) fuel cells. In this context the deposition parameters i.e., the voltage and time was systematically monitored to obtain the optimum parameters that can give a consistent coating. The deposit thickness and its surface roughness and morphology were evaluated to obtain a smooth coating. Further electrochemical testing of the coating obtained under optimized parameters was done by the dynamic polarization scanning test under PEMFC environment. The corrosion current density improved by almost four times and the polarization resistance increased by 100% indicating that graphene oxide coatings have the potential to be used as anti-corrosive coating on bipolar plates of PEMFC.