▎ 摘　　要

NOVELTY - Preparing a graphene oxide/expanded graphite aerogel phase change composite material involves mixing graphene oxide solution with expanded graphite to form a uniform dispersion, and reacting the dispersion to prepare a mixed hydrogel having a three-dimensional structure. The mixed hydrogel is frozen in a lyophilizer to obtain a mixed aerogel. The paraffin wax is melted and immersed in the mixed aerogel after the solidification of paraffin wax to obtain graphene oxide/expanded graphite aerogel phase change composite material. USE - Method for preparing a graphene oxide/expanded graphite aerogel phase change composite material. ADVANTAGE - The method ensures excellent thermal conductivity, high heat storage property and structural stability of the graphene oxide/expanded graphite aerogel phase change composite material.