▎ 摘　　要

NOVELTY - Graphene oxide/carbonyl iron wave-absorbing composite material comprises carbonyl iron and graphene oxide layer compounded on the surface of carbonyl iron. It is a core shell structure. USE - The graphene oxide/carbonyl iron wave-absorbing composite material is used for wave absorbing material (claimed) useful for electromagnetic wave absorption field. ADVANTAGE - The method improves the graphene oxide and carbonyl iron dispersibility, uses graphene oxide without agglomeration, provides composite material, which has excellent electromagnetic absorption performance, and is suitable for industrial large-scale production. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of the composite material comprising premixing carbonyl iron with graphene oxide water solution to obtain precursor solution, grinding, homogenizing and emulsifying, post-processing to obtain mixture powder, and sintering.