▎ 摘　　要

NOVELTY - Processing (P1) graphene involves: providing a graphene layer in which graphene interacts with a surface of a metal substrate under the graphene layer; exposing the surface of the metal substrate to an ambient gas; and tuning the graphene-substrate interaction by interfacial reaction of the ambient gas on the surface of the metal substrate. USE - For processing graphene; and performing chemical reactions at an interface between graphene and metal (claimed). The graphene is useful for device applications as well as for transition metal surface chemistry and catalysis in the presence of graphitic carbon. ADVANTAGE - The process of intercalation lifts the strong metal-carbon coupling and restores the characteristic Dirac behavior of isolated monolayer graphene. The interface of graphene with metals or metal-decorated substrates also provides controlled chemical reactions based on a functionality of the confined space between a metal surface and a graphene sheet. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for performing (P2) chemical reactions at an interface between graphene and a metal, involving: exposing a surface of a metal substrate under a graphene layer to chemical species selected from atomic species and/or molecular species; performing chemical reactions of the chemical species with each other or with the surface of the metal substrate in a space beneath the graphene layer by intercalation; and regulating intercalation by varying reaction parameters of partial pressures of all chemical species, sample temperature, and sequence of exposure to different reactant species, which can be simultaneous or sequential with different waiting and exposure times.