▎ 摘　　要

NOVELTY - Composite structure (1) of graphene and carbon nanotube (30) configured in a three-dimensional form, comprises: many graphene platelets (10), each being a thin sheet with a planar direction along a planar surface, and formed of 1-1000-graphene layers; many metal particles (20) coated on the graphene platelets; and many carbon nanotubes formed on the metal particles. Each carbon nanotube has an axial direction perpendicular to the planar direction of the graphene platelet. The carbon nanotubes form a three dimensional spacer among the graphene platelets to separate the graphene platelets. USE - The composite structure of graphene and carbon nanotube is useful in electrodes. ADVANTAGE - The composite structure of graphene and carbon nanotube utilizes carbon nanotubes that are vertically formed on planar surfaces of graphene platelets to separate graphene platelets and thus provides the composite with improved thermal conductivity and electrical conductivity. DETAILED DESCRIPTION - Composite structure (1) of graphene and carbon nanotube (30) configured in a three-dimensional form, comprises: many graphene platelets (10), each being a thin sheet with a planar direction along a planar surface, and formed of 1-1000-graphene layers; many metal particles (20) coated on the graphene platelets; and many carbon nanotubes formed on the metal particles. Each carbon nanotube has an axial direction perpendicular to the planar direction of the graphene platelet. The carbon nanotubes form a three dimensional spacer among the graphene platelets to separate the graphene platelets, and a chemical bonding is formed between the carbon nanotubes and the graphene platelets to connect to each other. An INDEPENDENT CLAIM is also included for manufacturing the composite structure of graphene and carbon nanotube configured in a three-dimensional form, comprising preparing the graphene platelets, chemically precipitating the graphene platelets by dispersing in a solution comprising a metal salt precursor, forming the metal salt from the solution through precipitation, and depositing the metal salt onto surfaces of the graphene platelets, chemically reducing the graphene platelets by placing the graphene platelets decorated with metal salt at a high temperature for a thermal reduction treatment so that the metal salt thermally decomposes and is reduced to form many metal particles, and growing carbon nanotubes by supplying a gaseous carbon source and a reducing gas for the graphene platelets, and forming the carbon nanotubes on the metal particles by a thermal treatment, where each graphene platelet has a planar direction along a planar surface of the graphene platelet, and an axial direction of the carbon nanotube is perpendicular to the planar direction. DESCRIPTION OF DRAWING(S) - The figure illustrates the composite structure graphene and carbon nanotube. Composite structure (1) Graphene platelets (10) Metal particles (20) Carbon nanotube (30)