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Method for making graphene spherical hollow body, graphene spherical hollow body, graphene spherical hollow body integrated electrode and graphene spherical hollow body integrated capacitor
Method for making graphene spherical hollow body, graphene spherical hollow body, graphene spherical hollow body integrated electrode and graphene spherical hollow body integrated capacitor
PROBLEM TO BE SOLVED: To provide a graphene spherical hollow body capable of forming a capacitor having a high specific capacity and a method for preparing the same, and to provide a graphene spherical hollow body integrated capacitor.SOLUTION: The method for preparing a graphene spherical hollow body includes: a step of preparing a first core-shell structure, which has a core composed of a polymer molding having an arbitrary three dimensional shape and a shell composed of graphene oxide that covers the surface of the core, in an aqueous solution by mixing and dispersing the polymer molding and a graphene oxide powder in water; a step of preparing a second core-shell structure, which has a core composed of the polymer molding and a shell composed of graphene that covers the surface of the core, in an aqueous solution by reducing the graphene oxide covering the surface of the polymer molding into graphene; and a step of preparing a graphene hollow structure having a shell composed of the graphene and a hollow part formed in the shell by heating the second core-shell structure to decompose and remove the core composed of the polymer molding.
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