▎ 摘　　要

NOVELTY - A large-range dimensional nanomaterial graphene is prepared by using sputtering or pulse laser deposition to prepare nickel film with thickness of 100-300 nm; using high-speed ion implantation to implant carbon to the film surface at a dose of 5x 1015-5x 1016 and 500-1000 eV; annealing at 600-1000 degrees C for 15-60 minutes and a vacuum degree of 105-1 Pa; using 0.25-1 mol/liter iron chloride or iron nitrate to erode the film; floating the graphene film on liquid surface for 3-24 hours; and transferring the film from the liquid thoroughly by the substrate to obtain large-range graphene film. USE - Method for preparing large-range dimensional nanomaterial graphene (claimed). ADVANTAGE - The large-range graphene film is manufactured and sized up to several centimeters. DESCRIPTION OF DRAWING(S) - The drawing is a process flow diagram of a method for preparing a large-range dimensional nanomaterial graphene.