▎ 摘　　要

NOVELTY - Manufacture of graphene nanostructure involves preparing a solution (S100) by dispersing graphene powder in deionized water, preparing a solution (S102) by dispersing metal oxide in deionized water, mixing solutions (a) and (b), adding (S106) nitrogen-containing aqueous solution, adding (S108) oxidizing agent to the mixture (S104), filtering, washing and drying (S110), and irradiating (S112) microwave to the mixture. USE - Manufacture of graphene nanostructure used for energy storage device (all claimed) e.g. lithium secondary battery, gas sensor and hydrogen reservoir. ADVANTAGE - The method enables manufacture of graphene nanostructure with excellent electrochemical performance and suppressed generation of toxic gas. DESCRIPTION OF DRAWING(S) - The drawing shows flowchart of manufacture of graphene nanostructure. (Drawing includes non-English language text) Solution of dispersed graphene powder (S100) Solution of dispersed metal oxide (S102) Mixture of solutions (S104) Addition of aqueous ammonia (S106) Addition of Hydrogen peroxide (S108) Filtration, washing and drying (S110) Irradiation of microwave (S112)