▎ 摘　　要

NOVELTY - Ceramic/graphene aerogel wave-absorbing material comprises graphene shaped structure and lithium-aluminum-silicon ceramic particles, where graphene shaped structure and lithium-aluminum-silicon ceramic particles are formed by alternately connecting graphene sheet layers containing nitrogen (N) atoms doped with substituted carbon (C) atoms; lithium aluminum silicon ceramic particles are dispersed on surface of graphene shaped structure. USE - Ceramic/graphene aerogel wave-absorbing material used in wave-absorbing field (claimed). ADVANTAGE - The ceramic/graphene aerogel wave-absorbing material enables to utilize lithium aluminum silicon ceramic to adjust impedance matching performance of reduced graphene oxide, improves wave-absorbing performance by utilizing synergistic effect of conductance loss and polarization loss, where method has good repeatability, low cost, environment friendly, clean and non-toxic, easy for large-scale production, where structure and shape of synthesized ceramic/graphene aerogel wave-absorbing material are good for absorbing electromagnetic wave absorption, and is ideal composite electromagnetic wave-absorbing material which is practically applied. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing ceramic/graphene aerogel wave-absorbing material, which involves: (a) adding lithium aluminum silicon gel powder into water to uniformly dispersed to obtain ceramic powder dispersion liquid; (b) mixing graphene oxide with ceramic powder dispersion liquid, diluting with water, and uniformly mixing with N-precursor to obtain mixed solution; and (c) carrying out hydrothermal reaction on mixed solution, replacing product of hydrothermal reaction with water, then carrying out freeze drying treatment to obtain ceramic/graphene aerogel wave-absorbing material.