▎ 摘　　要

NOVELTY - Preparing nitrogen-doped porous graphene comprises (i) taking graphene oxide; (ii) diluting the graphene oxide obtained above to obtain a graphene oxide dispersion, adding hydrogen peroxide, stirring uniformly and then continuing to add a nitrogen-containing polymer monomer for hydrothermal reaction to obtain a porous graphene-polymer gel ; and (iii) washing and drying the obtained porous graphene-polymer gel and performing high-temperature reaction in an inert gas atmosphere and then cooling. USE - The graphene is useful for fuel cell. ADVANTAGE - The method is simple; improves the yield. The material has high redox catalytic activity as a catalyst. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for nitrogen-doped porous grapheme prepared as mentioned above.