▎ 摘　　要

NOVELTY - Preparation of nitrogen, sulfur or chlorine-doped three-dimensional porous graphene catalyst involves dissolving graphene oxide in a solvent, ultrasonically processing, adding nitrogen, sulfur or chlorine alkyl compound, hydrochloric acid and transition metal salt, reacting, drying, obtaining precursor, heating obtained precursor, obtaining primary carbides, treating with mixture of hydrofluoric acid and hydrochloric acid, centrifuging, rinsing using deionized water, drying, obtaining nitrogen, sulfur or chlorine porous three-dimensional material graphene, and further heating. USE - Preparation of nitrogen, sulfur or chlorine-doped three-dimensional porous graphene catalyst used for manufacturing membrane electrode for fuel cell e.g. proton exchange membrane fuel cell, basic polymer membrane fuel cell, metal-air battery, supercapacitor and direct alkaline small molecule organic liquid fuel cell (all claimed) for processing wastewater containing microorganism. ADVANTAGE - The method efficiently provides nitrogen, sulfur or chlorine-doped three-dimensional porous graphene catalyst having high stability. DETAILED DESCRIPTION - Preparation of nitrogen, sulfur or chlorine-doped three-dimensional porous graphene catalyst involves dissolving graphene oxide in a solvent, ultrasonically processing, adding nitrogen, sulfur or chlorine alkyl compound, hydrochloric acid and transition metal salt, reacting, drying, obtaining precursor, heating obtained precursor under inert gas atmosphere at 600-1000 degrees C for 1-3 hours, obtaining primary carbides, treating with mixture of hydrofluoric acid and hydrochloric acid at room temperature for 12-24 hours, centrifuging, rinsing using deionized water, drying, obtaining nitrogen, sulfur or chlorine porous three-dimensional material graphene, and further heating under inert gas atmosphere at 600-1000 degrees C for 1-3 hours. An INDEPENDENT CLAIM is included for manufacture of fuel-cell membrane electrode using nitrogen, sulfur or chlorine-doped three-dimensional porous graphene catalyst.