▎ 摘　　要

NOVELTY - A graphene/molybdenum sulfide heterojunction modified graphite felt electrode material comprises a conductive substrate and a catalyst supported on the conductive substrate. The conductive substrate is graphite felt. The catalyst is a nanographene/molybdenum sulfide heterojunction. The conductive substrate is prepared by (i) dissolving ammonium paramolybdate and thiourea in deionized water, adding a graphene oxide aqueous solution to the aqueous solution, evenly mixing and transferring to the hydrothermal tank reactor, placing the hydrothermal tank reactor under the high temperature condition for hydrothermal synthesis reaction, filtering, washing and drying to obtain nano heterojunction precursor, (ii) annealing the precursor obtained in step (i) under inert atmosphere or vacuum conditions to obtain nano-graphene/molybdenum sulfide heterojunction, (iii) ultrasonically cleaning the graphite felt substrate with acetone and water, and annealing the impregnated graphite felt. USE - Graphene/molybdenum sulfide heterojunction modified graphite felt electrode material used in adsorption, catalysis and electrical sensor application. ADVANTAGE - The electrode material has excellent conductivity, synergistic effect, hole adsorption activity and oxygen reduction activity, high porosity, and large specific surface area, is prepared by simple method. DETAILED DESCRIPTION - A graphene/molybdenum sulfide heterojunction modified graphite felt electrode material comprises a conductive substrate and a catalyst supported on the conductive substrate. The conductive substrate is graphite felt. The catalyst is a nanographene/molybdenum sulfide heterojunction. The conductive material is prepared by (i) dissolving ammonium paramolybdate and thiourea in deionized water, adding a graphene oxide aqueous solution to the aqueous solution, evenly mixing and transferring to the hydrothermal tank reactor, placing the hydrothermal tank reactor under the high temperature condition for hydrothermal synthesis reaction, filtering, washing and drying to obtain nano heterojunction precursor, (ii) annealing the precursor obtained in step (i) under inert atmosphere or vacuum conditions to obtain nano-graphene/molybdenum sulfide heterojunction, (iii) ultrasonically cleaning the graphite felt substrate with acetone and water for 1-3 times, ultrasonically dispersing the nanographene/molybdenum sulfide heterojunction obtained in step (ii) in a mixed dispersion of water and n-butanol, immersing the cleaned graphite felt in the mixed dispersion and continuing the ultrasonically treating, drying and annealing the impregnated graphite felt under inert atmosphere or vacuum conditions.