▎ 摘　　要

NOVELTY - Preparing a graphene/molybdenum sulfide composition aerogel electrocatalyst comprises (i) adding ammonium heptamolybdate, thiourea and aluminum nitrate; (ii) dissolving ammonium heptamolybdate, thiourea and aluminum nitrate in graphene oxide solution to obtain a mixed solution; (iii) placing the mixed solution in a reaction kettle and performing for high temperature reaction; (iv) naturally cooling the mixed solution to obtain a composition hydrogel; (v) washing the mixture hydrogel; and (vi) freeze-drying the mixture hydrogel. USE - The method is useful for preparing a graphene/molybdenum sulfide composition aerogel electrocatalyst. ADVANTAGE - The method: utilizes convenient and readily available raw materials; is simple to process, and is environmentally-friendly; prepares aerogel electrocatalyst, which has a large number of active sites and improves the efficacy of electrocatalytic hydrogen evolution. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for testing the electrocatalytic hydrogen evolution performance of a graphene/molybdenum sulfide composition aerogel electrocatalyst, comprising (a) adding composition aerogel catalyst in an isopropanol/water mixed solvent to obtain a catalyst solution; (b) placing the catalyst solution in an ultrasonic machine for ultrasonic dispersion; (c) removing the dissolved oxygen from the electrolyte in the electrocatalytic hydrogen evolution test cell, and removing organics and other impurities on the catalyst surface; (d) dropping the catalyst solution on a rotating disc glassy carbon electrode, and obtaining a rotating disc electrode with a catalyst film after drying; and (e) testing the electrochemistry of the rotating disc electrode using a standard three-electrode system hydrogen evolution performance.