▎ 摘　　要

NOVELTY - A liquid composite aerogel comprises graphene three-dimensional skeleton, black phosphorus nano-sheet and cationic nitrogen-containing ionic liquid supported on graphene three-dimensional skeleton. The liquid composite aerogel has three-dimensional porous network structure. USE - Liquid composite aerogel used for aluminum ion battery, solar cells, lithium-ion battery, catalysis, water treatment, optoelectronics and photothermal fields. ADVANTAGE - The composite aerogel expands the application of black phosphorus, and has high elasticity, recovery and conductivity, very excellent stability, and enriched black phosphorus product form. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of liquid composite aerogel comprising mixing raw materials, adding reducing agent, stirring, water bath heating to 75-100 degrees C for 1-3 hours oxygen-free condition, washing with hydrophilic organic solvent and deionized water to remove residual reducing agent, and freeze-drying.