3 3 A process of preparing 3D graphene by using template etching 3D graphene particles prepared thereby and hybrid particles comprising the same

摘要

The present invention relates to a three-dimensional wrinkled graphene particle, a hybrid powder particle including the wrinkled graphene particle, and a three-dimensional porous network composed of the three-dimensional wrinkled graphene particles. The method includes: coating a two-dimensional graphene derivative on a surface of a template particle that is easily etched selectively; And advancing a solution-phase chemical etching of the prepared template-graphene core-shell particle precursor, wherein the three-dimensional graphene grains and the hybrid particle powders containing the three-dimensional graphene grains are efficiently mass-And it is possible to solve the phenomenon of lamination and reduction of physical properties, which are indispensable in drying, reduction, and apparatus manufacturing processes of conventional two-dimensional graphene. According to various embodiments of the present invention, it is possible to obtain the three-dimensional graphene particles and hybrid particles including the three-dimensional graphene particles, which exhibit excellent electrical conductivity and excellent dispersion stability in an aqueous solution, It can be used easily as a structural material for an active electrode which can be assembled quickly and easily with a three-dimensional porous / conductive network without constraints of size, without binder additive and conductive filler, and easy to use for next generation energy conversion and conversion devices.