CARBON-SILICON THREE-DIMENSIONAL STRUCTURAL COMPOSITE MATERIAL AND PREPARATION METHOD THEREOF

Provided are a carbon-silicon three-dimensional structural composite material and a preparation method thereof. The preparation method includes: dissolving graphene quantum dots in ultrapure water, dropwise adding a CuClor ZnClsolution, and performing oscillation to generate a mixed emulsifier; mixing the mixed emulsifier with a graphite oxide aqueous solution and a cyclohexane solution containing nanosilicon spheres, and performing homogenization to form a uniform oil-in-water emulsion; adding hydrazine hydrate into the obtained emulsion for reduction, and performing a hydrothermal reaction to obtain a reduced emulsion; and freeze-drying the reduced emulsion, performing washing with a washing liquid, and performing vacuum drying to obtain a carbon-silicon three-dimensional structural composite material