▎ 摘　　要

NOVELTY - Preparing high temperature expansion of iron-doped pleated graphene aerogel comprises (i) using molten salt method to mix anhydrous ferric chloride with graphite to prepare a second-order graphite intercalation compound, (ii) oxidizing intercalation of the second-order graphene intercalation compound by using an oxidizing agent and a concentrated acid to obtain material, (iii) ultrasonically treating the oxygen-containing layer and the ferric chloride alternately intercalated graphite in an aqueous solution, and stripping the oxygen-containing layer to obtain a ferric chloride intercalated iron oxide olefin, (iv) freeze-drying the ferric chloride intercalated graphene oxide dispersion to obtain a ferric chloride intercalated graphene oxide aerogel, and (v) using high-temperature treatment material under protective atmosphere, and decomposing oxygen-containing layer with ferric chloride to generate gas. USE - The method is useful for preparing high temperature expansion of iron-doped pleated graphene aerogel. ADVANTAGE - The method: reduces the damage of the graphene sheet structure, removes the oxygen-containing group by high temperature, and decomposes the ferric chloride to generate gas, increase the specific surface area of the aerogel to enhance its mechanical elasticity, improves the conductivity of the graphene nanosheets, and enhances the electrical conductivity of the aerogel. DETAILED DESCRIPTION - Preparing high temperature expansion of iron-doped pleated graphene aerogel comprises (i)using a molten salt method to mix anhydrous ferric chloride with graphite to prepare a second-order graphite intercalation compound, (ii) oxidizing intercalation of the second-order graphene intercalation compound by using an oxidizing agent and a concentrated acid to obtain material in which oxygen-containing group layer and ferric chloride are alternately intercalated with graphite, (iii) ultrasonically treating the oxygen-containing layer and the ferric chloride alternately intercalated graphite in an aqueous solution, and stripping the oxygen-containing layer to obtain a ferric chloride intercalated iron oxide olefin which is dispersible in water, (iv) freeze-drying the ferric chloride intercalated graphene oxide dispersion to obtain a ferric chloride intercalated graphene oxide aerogel, and (v) using high-temperature treatment material under protective atmosphere, and decomposing oxygen-containing layer with ferric chloride to generate gas.