HIERARCHICAL STRUCTURE OF GRAPHENE-CARBON NANOTUBES AND METHOD FOR PREPARING SAME

摘要

The present invention relates to a hierarchical structure of graphene-carbon nanotubes and a method for preparing the same, and, more specifically, to a method for growing graphene into carbon nanotubes having a hierarchical structure by adding metal nanoparticles on the graphene. According to the present invention, carbon nanotubes having a hierarchical structure, which have an increased specific surface area compared to existing carbon nanotubes, can be obtained, and a carbon nanotube structure which is metal-functionalized by a metal precursor can be obtained. In addition, carbon nanotubes can be prepared in an environmentally-friendly manner by the use of microwaves.

主权项

1. A method manufacturing a hierarchical structure of a graphene-carbon nanotube, comprising:
adding a first catalyst metal and a first ion solvent to a graphite or a graphene oxide to provide a first mix material; irradiating first microwaves to the first mix material to provide a graphene-carbon nanotube conjugate; adding a second catalyst metal and a second ion solvent to the graphene-carbon nanotube conjugate to provide a second mix material; and irradiating second microwaves to the second mix material to convert the carbon nanotube into a hierarchical structure.