▎ 摘　　要

NOVELTY - Preparing in-situ loaded nitrogen-doped graphene polymer conversion ceramic-based wave-absorbing material comprises (i) dispersing the nitrogen source organic matter into the organic solvent, transferring into Schlenk device, adding silicon-based polymer, stirring and reacting for 2-4 hours at 60-120degrees Celsius and removing the organic solvent under the vacuum to obtain the single-source precursor; (ii) adding the single source precursor into a tubular furnace, using nitrogen as protective gas, heating to 100-400degrees Celsius at a heating speed of 3-10degrees Celsius/min, crosslinking and curing the precursor fully at the temperature for 1-5 hours, closing the heating power supply and cooling the furnace naturally to obtain the nitrogen-doped graphene by the single-source precursor PDCs is a folding structure formed by staggering and stacking a large amount of graphene sheets, grinding and sieving fully the solidified powder to obtain 200-500 meshes precursor powder. USE - The method is useful for preparing in-situ loaded nitrogen-doped graphene polymer conversion ceramic-based wave-absorbing material. ADVANTAGE - The method: can introduce nitrogen-graphene with better absorbing properties to overcome the disadvantages; and produces in-situ loaded nitrogen-doped graphene polymer conversion ceramic-based wave-absorbing material with structure which is easy to agglomerate with improved absorbing properties.