▎ 摘　　要

NOVELTY - Preparation of doped three-dimensional porous graphene aerogel comprises uniformly dispersing graphene oxide, reducing agent, and deionized water, carrying out solvent thermal reaction to obtain graphene oxide hydrogel, dialyzing, and freeze-drying; placing in supercritical reactor, adding heteroprecursor solution, introducing carbon dioxide, heating, stirring, impregnating with supercritical carbon dioxide, dispersing, washing with ethanol, and drying at low temperature; and pyrolyzing under protection of inert gas. USE - The method is used for preparing doped three-dimensional porous graphene aerogel for fuel cell (claimed). ADVANTAGE - The aerogel has a three-dimensional porous structure, high heteroatom incorporation amount, good oxygen reduction performance, and better methanol resistance and stability than commercial platinum/carbon.