▎ 摘　　要

NOVELTY - The method involves dispersing graphene oxide in distilled water to form a graphene oxide dispersion of a certain concentration. The magnetic catalyst particles are added to the graphene oxide dispersion. The magnetic catalyst particles are evenly stirred to obtain a black suspension. The black suspension is subjected to film forming treatment to obtain a magnetic graphene oxide film. The magnetic graphene oxide film is placed in a graphitization furnace. The heating for catalytic graphitization treatment is performed to obtain a magnetic graphene film under the protection of the inert gas. USE - Catalytic graphitization preparation method of magnetic graphene film for electromagnetic shielding. ADVANTAGE - The method greatly reduces the graphitization temperature of the graphene film, simplifies the requirement of the production device, realizes the energy-saving consumption and reduces the cost. The prepared magnetic graphene film has absorption main electromagnetic shielding performance, which is used for solving the electromagnetic compatibility problem of the electronic product with high integration degree. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of a photograph of a magnetic graphene film. (Drawing includes non-English language text)