▎ 摘　　要

NOVELTY - Preparation of nitrogen-containing graphene material using coconut shell comprises crushing dried coconut shell into powder, heating at 450-800 degrees C for 1-2 hours in nitrogen atmosphere, heating further to 800-1000 degrees C for 0.5-2 hours, cooling to 25-35 degrees C slowly, mixing obtained pre-carbonized product with reaction raw material at 1:1-5 mass ratio, heating mixture to 800-900 degrees C for 1-2 hours under nitrogen atmosphere, heating further to 900-1200 degrees C for 0.5-2 hours, and cooling slowly to room temperature. The reaction raw material is zinc chloride, zinc nitrate, and/or potassium hydroxide. USE - Method for preparing nitrogen-containing graphene material using coconut shell. ADVANTAGE - The method is simple, safe and environment-friendly, and avoids using large amount of concentrated sulfuric acid for oxidation of graphite powder. The obtained graphene material has specific surface area of 1170-2673 m2/g.