Method for preparing graphene membrane from graphite liquid CO2 suspension

Abstract

The invention discloses a method for preparing a graphene membrane from a graphite liquid CO2 suspension. The device comprises an insulation barrel, a stirrer and a volatilization disc; the method ischaracterized by comprising the following steps: adding the liquid CO2 with ultralow viscosity, ultra-strong flowability, ultra-strong permeability and super-strong adsorbability and high-mesh graphite powder into the sealed insulation barrel and stirring same; further breaking the graphite particles into suspension liquid with uniformly mixed free carbon atoms; pouring the suspension liquid intoa volatilization disc, allowing carbon atoms to settle due to the difference of specific gravity, wherein under condition of no interference of upper and lower atom motion power, carbon atoms firstlyreaching plane of volatilization disc are mutually combined to form two-dimensional crystallized graphene membrane.; compared with the prior art, the preparation method disclosed by the invention hasthe characteristics of simple use facilities, rich raw material sources, mature application technology and the like, and also has the advantages of high graphene preparation efficiency, easy control of size and shape, random composite layer thickness and the like, so that the preparation method has very good popularization and application values.

Description

[0001] 1. Technical field: [0002] The present invention relates to the manufacture of new materials, specifically a graphite liquid CO 2 Method for preparing graphene membrane from suspension. [0003] 2. Background technology: [0004] Graphene has been widely concerned and valued by the society for its outstanding advantages and performances in electricity, heat, mechanics, etc. A hot industry scrambling to develop. For example, there are hundreds of units or institutions that research, develop and produce graphene in Shandong Province alone. At present, my country's graphene research and development and production are at the forefront of the world, but most of the research and development are scattered in human resources and small in scale. , low-level, fragmented, uniform, go hand in hand repetitive state. Producing results, producing products, and producing benefits have become common pursuit goals. The fashion trend of eager for quick success, catching up with fashion...

AI Technical Summary

Problems solved by technology

For example, there are hundreds of units or institutions that research, develop and produce graphene in Shandong Province alone. At present, my country's graphene research and development and production are at the forefront of the world, but most of the research and development are scattered in human resources and small in scale. , low-level, self-contained, uniform, and parallel state of repetition