▎ 摘　　要

NOVELTY - Preparing fluorine-doped graphene supported lead composite material comprises (i) adding oxidizing graphene into distilled water, ultrasonically dispersing, adding hydrazine hydrate after ultrasonic dispersion, transferring to the stainless steel high temperature reaction kettle subsequently, obtaining a mixture through high temperature hydrothermal reaction, and washing the mixture with distilled water and drying to obtain reduced graphene; (ii) mixing reduced graphene and polyvinylidene fluoride, dissolving in distilled water for ultrasonic dispersion, adding trifluoroethylene; and (iii) obtaining fluorine-doped reduced graphene, adding distilled water, N-methylpyrrolidone, and ultrasonically dispersing, adding lead fluoride and excess sodium borohydride to the mixed solution, and heating the reaction under stirring to obtain the product washing and filtering and then transferring to a porcelain boat, and calcining at high temperature in a tube furnace for 1-2 hours. USE - The composite material is useful in catalysing combustion-supporting solid fuel (claimed). ADVANTAGE - The method is simple; utilizes simple experiment device; and is good for realizing batch production. DETAILED DESCRIPTION - Preparing fluorine-doped graphene supported lead composite material comprises (i) adding oxidizing graphene into distilled water, ultrasonically dispersing, adding hydrazine hydrate after ultrasonic dispersion, transferring to the stainless steel high temperature reaction kettle subsequently, obtaining a mixture through high temperature hydrothermal reaction, and washing the mixture with distilled water and drying to obtain reduced graphene; (ii) mixing reduced graphene and polyvinylidene fluoride, dissolving in distilled water for ultrasonic dispersion, adding trifluoroethylene, using magnetic stirring in an ice-water bath to obtain a mixed solution, transferring the mixed solution into a stainless steel reaction kettle, and passing through high temperature water and performing thermal reaction to obtain fluorine-doped reduced graphene; and (iii) obtaining fluorine-doped reduced graphene, adding distilled water, N-methylpyrrolidone, and ultrasonically dispersing to obtain a mixed solution, adding lead fluoride and excess sodium borohydride to the mixed solution, and heating the reaction under stirring to obtain the product washing and filtering and then transferring to a porcelain boat, and calcining at high temperature in a tube furnace for 1-2 hours. An INDEPENDENT CLAIM is also included for fluorine-doped graphene supported lead composite material prepared as mentioned above.