A method of providing a graphene coating on a carbon steel substrate, at least comprising the steps of (a) providing a carbon steel substrate; (b) heating the carbon steel substrate as provided in step (a) in an oxygen-free chamber in the presence of a carbon source to a temperature above 800℃, thereby obtaining a heated carbon steel substrate; (c) decreasing the surface temperature of the heated carbon steel substrate as obtained in step (b) to lower than 700℃ at a cooling rate of at least 1℃/s, thereby obtaining a cooled graphene-coated carbon steel substrate. The graphene coating reduced the corrosion rate by 54.8%, which confirm the good anti-corrosion ability of the as-grown graphene coating.
Published in: "Patentscope".