▎ 摘　　要

NOVELTY - A phosphorus-containing compound, nitrogen-containing organic compound and hexacarbon compound are uniformly mixed, dried and pulverized in certain proportion, to obtain precursor particles. The precursor particles are placed in heating furnace, protective gas is introduced, heat-preserved at 800-1300 degrees C for 0.5-5 hours and cooled for 0.5-5 hours, to obtain nitrogen and phosphorus co-doped graphene. The molar ratio of nitrogen in nitrogen-containing organic compound and carbon in hexacarbon compound is 10:1-100:1. USE - Preparation of nitrogen and phosphorus co-doped graphene (claimed). ADVANTAGE - The method enables simple and economical preparation of nitrogen and phosphorus co-doped graphene having high quality, with high yield using readily available raw materials, by adjusting doping concentration and uniformly distributing nitrogen atom and phosphorus atom. DETAILED DESCRIPTION - A phosphorus-containing compound, nitrogen-containing organic compound and hexacarbon compound are uniformly mixed, dried and pulverized in certain proportion to obtain precursor particles. The precursor particles are placed in heating furnace, protective gas is introduced, heat-preserved at 800-1300 degrees C for 0.5-5 hours and cooled for 0.5-5 hours, to obtain nitrogen and phosphorus co-doped graphene. The molar ratio of nitrogen in nitrogen-containing organic compound and carbon in hexacarbon compound is 10:1-100:1. The molar ratio of nitrogen in nitrogen-containing organic compound and phosphorus in phosphorus-containing compound is 10:1-1000:1.