▎ 摘　　要

NOVELTY - Preparing p-type doped three-dimensional graphene-wrapped zeolitic imidazolate frameworks composite absorbing material involves preparing a graphene dispersion, mixing the zeolitic imidazolate framework (cobalt) with the graphene oxide dispersion according to the proportion of 80-110 g: 200 ml, after stirring uniformly, adding excessive cobalt compound containing cobalt ions, ultrasonic processing, then adding acid to adjust the pH to below 3.5, heating and stirring until the moisture is substantially evaporated in the air at the temperature of 75-85℃, drying to obtain three-dimensional graphene-wrapped zeolitic imidazolate frameworks powder, putting three-dimensional graphene-wrapped zeolitic imidazolate frameworks powder into a tubular furnace, introducing borane, raising the temperature to 700-1100℃, sintering for 2-8 hours to obtain the p-type doped three-dimensional graphene-wrapped zeolitic imidazolate frameworks composite absorbing material. USE - Method for preparing p-type doped three-dimensional graphene-wrapped zeolitic imidazolate frameworks composite absorbing material. ADVANTAGE - Zeolitic imidazolate framework is stably fixed between three-dimensional graphene sheets, which can effectively prevent graphene from self-stacking, has good structural stability, and can maintain its excellent electrical conductivity. The method utilizes high-temperature doping to carry out p-type doping on three-dimensional graphene to increase carrier concentration, better impedance matching, and better wave-absorbing performance.