▎ 摘　　要

NOVELTY - A ferrite hollow sphere-graphene composite wave-absorbing material contains ferrite hollow sphere loaded on graphene sheet surface. USE - Ferrite hollow sphere-graphene composite wave-absorbing material (claimed). ADVANTAGE - The material is easy to produce and has good wave-absorbing performance, and adjustability, and preparation is simple, controls production rate of deposition gas, crystal nucleation and growth, has mild condition, low production device, and reduces graphene sheet structure. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of ferrite hollow sphere-graphene composite wave-absorbing material which involves carrying out Hummers process to natural flake graphite to obtain graphite oxide, ultrasonically peeling off graphite oxide to obtain graphene oxide dispersion liquid, dissolving metal salt ion of M and ultrasonic iron ion in ultrasonic graphene dispersion liquid, stirring, slowly adding surfactant, weighing precipitator, pouring mixed solution to PTFE internal tray in stainless steel high pressure reaction container, putting precipitator to container body, sealing, carrying out gas-phase diffusion reaction, naturally cooling to room temperature, centrifuging, washing, drying to obtain composite material precursor, and calcining under inert atmosphere protection. DESCRIPTION OF DRAWING(S) - The drawing shows a transmission electron microscopic image of cobalt ferrite hollow sphere-graphene composite wave-absorbing material.