▎ 摘　　要

NOVELTY - Fabricating graphene structures comprises: fabricating a crystalline graphene layer on a surface, where the crystalline graphene layer has one or more crystallographically disordered edges; and subsequently decreasing the crystallographic disorder of the one or more crystallographically disordered edges by heating the crystalline graphene layer on the surface at an elevated temperature in a catalytic environment comprising carbon-containing molecules, where the decrease in crystallographic disorder is catalyzed by the surface. USE - The method is useful for fabricating graphene structures (claimed). ADVANTAGE - The method allows efficient fabrication of the graphene structures with smooth and straight edges, high density and improved electronic and/or magnetic properties. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for patterned graphene comprising a graphene layer having features, where the features have internal or external edges that are aligned with the crystallographic direction of the graphene lattice and comprise at least 1000 features.