PROCEDE DE FABRICATION DE GRAPHENE ET GRAPHENE OBTENU PAR CE PROCEDE

摘要

The invention relates to a graphene production method wherein the following are brought into contact: - a solid catalyst in divided state comprising at least one mixed oxide incorporating at least one metal element, said mixed valence metal element capable of having at least two valences, one of the valences of said mixed valence metal element being equal to +2, at least one such mixed valence metal element being chosen from the group formed by iron and cobalt, - a flow of a gaseous composition comprising at least one source of carbon in the gaseous state; characterised in that each mixed oxide of the catalyst has a single crystalline structure and an average crystalline domain size so as to produce graphene having a thickness of less than 15 nm and at least one dimension substantially perpendicular to said thickness of between 0.1 mum and 500 mum.