▎ 摘　　要

NOVELTY - Nickel/graphene composite wave-absorbing material comprises barbed spherical metallic nickel. USE - Nickel/graphene composite absorbing material. ADVANTAGE - The material has excellent absorbing properties at 2-18 GHz frequency. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of nickel/graphene composite absorbing material comprising mixing graphite oxide and nickel chloride hexahydrate, ultrasonic dispersing in ethylene glycol, dissolving sodium hydroxide in hydrazine hydrate, mixing and hydrothermal reacting.