▎ 摘　　要

NOVELTY - Spraying graphene coat on a substrate comprises: (a) mixing graphene into a solvent to prepare graphene oxide solution; (b) spraying the graphene solution on the surface of substrate material; and (c) pre-heating the sprayed substrate material. USE - The spraying graphene coat is useful in radiation technology field. ADVANTAGE - The method sprays graphene coat with high capability and quality in a cost-effective manner.