▎ 摘　　要

NOVELTY - Preparing single atom aerogel electrocatalyst comprises (i) adding metal salt into deionized water, and stirring uniformly to prepare into metal ion solution, (ii) adding the metal ion solution into graphene oxide aqueous solution, adding reducing agent, and ultrasonically dispersing, where mass ratio of the graphene oxide, metal salt and reducing agent is 1:0.01-0.05:4-6, (iii) placing the prepared solution in an oven and reacting at 90-100 degrees C for 4-8 hours, naturally cooling to room temperature and taking out, (iv) adding aging solution to the obtained wet gel for solvent replacement, (v) drying the wet gel, (vi) placing the aerogel precursor after drying into a furnace for heat treatment under nitrogen-containing atmosphere, heating at 900-1400 degrees C for 2-4 hours at speed of 3-5 degrees C/minute, cooling to room temperature and taking out, and (vii) soaking the sample after heat treatment in acid solution, and then cleaning, and drying in oven. USE - The method is useful for preparing single atom aerogel electrocatalyst. ADVANTAGE - The method enables to prepare single atom aerogel electrocatalyst which has high specific surface area and more catalytic activity site, and inhibits the agglomeration tendency so as to improve the catalytic efficiency.