Method for producing carbon material using subcritical or supercritical fluid

Abstract

The present invention discloses a method for producing a carbon material using a subcritical or supercritical fluid that can efficiently produce dispersed graphene or the like in a short time by using a subcritical or supercritical fluid in a process of pulverizing a carbon material. The method for producing a carbon material using a subcritical or supercritical fluid includes: physically pulverizing a carbon material formed by covalently bonding carbon atoms; flowing a subcritical or supercritical fluid into the pulverized carbon material to make The step of increasing the carbon interval inside the carbon material, reacting the pulverized carbon material with a subcritical or supercritical fluid to form an active group in the carbon material; and dispersing the carbon material with the active group formed in the solvent step.

Description

technical field

[0001] The present invention relates to a method for producing a carbon material using a subcritical or supercritical fluid. More specifically, it relates to a method for efficiently producing dispersed graphite in a short time by using a subcritical or supercritical fluid in a process of pulverizing a carbon material A method for producing carbon materials such as alkenes using subcritical or supercritical fluids. Background technique

[0002] Graphene is a carbon crystal in which carbon atoms are connected in a hexagonal honeycomb shape and has a two-dimensional sheet shape, and a plurality of plate-shaped graphenes are laminated to form graphite. Therefore, when graphite is exfoliated, sheet-like graphene composed of a single layer or a multilayer can be obtained. Graphene is a substance with both metallic and non-metallic properties. As a metal, it has higher electrical / electronic conductivity than copper and higher thermal conductivity than diamond. As ...

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