A comparison of carbon coated and uncoated 316L stainless steel for using as bipolar plates in PEMFCs

A review of bipolar plates materials and graphene coating degradation mechanism in proton exchange membrane fuel cell

“…40 Stainless steels are high-strength corrosion resistance materials utilized in corrosive conditions in light of a promising combination of mechanical properties, corrosion resistance, and cost viability when contrasted with other materials for BPP application. 42,43 The fabrication process of the stainless steel can influence the corrosion behavior of the material and the synthetic organization of the stainless steel decides by and large their applications as BPP materials. However, it has been realized that stainless steel is inclined to the chemical attack in the PEM fuel cell environment delivering an oxide layer that regularly harms the membranes.…”

In situ Bragg coherent X-ray diffraction imaging of corrosion in a Co–Fe alloy microcrystal

“…A previous study by Larijani et al shows that the corrosion of 316 stainless steel coated with 200 nm of carbon has a corrosion current density two orders of magnitude smaller and a higher corrosion potential in a prototypical fuel cell environment with a pH of 2. 38 Thus the lower initial localised dissolution rate from 0–2.6 h (Fig. 6) is attributed to the passivation due to the carbon coating, which is slowly removed.…”

In situ Bragg coherent X-ray diffraction imaging of corrosion in a Co-Fe alloy microcrystal

“…This low-high-low corrosion rate pattern is likely a result of the carbon coating initially present on the surface of the crystal. A previous study by Larijani et al shows that the corrosion of 316 stainless steel coated with 200 nm of carbon has a corrosion current density two orders of magnitude smaller and a higher corrosion potential in a prototypical fuel cell environment with a pH of 2 36 . Thus the lower initial localised dissolution rate from 0 -2.6 h (Fig.…”