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Graphene preparation method based on mixed inorganic acid solvent

A technology of inorganic acid and graphene, applied in graphene, inorganic chemistry, chemical instruments and methods, etc., can solve the problems of poor equipment utilization, high price, low preparation efficiency, etc., to improve preparation efficiency and equipment utilization, The effect of facilitating commercialization and reducing the time required

Pending Publication Date: 2021-11-02
BEIJING CHOICE ELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

These solvents generally have defects such as high price, toxicity, high boiling point that require high temperature preparation conditions, and complicated preparation process, especially when using solvent stripping method, it often takes a long time to process, and the preparation efficiency is low and the equipment utilization rate is poor.

Method used

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  • Graphene preparation method based on mixed inorganic acid solvent
  • Graphene preparation method based on mixed inorganic acid solvent
  • Graphene preparation method based on mixed inorganic acid solvent

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Embodiment Construction

[0038] In order to understand the content of the present invention more clearly, it will be described in detail with reference to the drawings and embodiments.

[0039] Such as figure 1 Shown is the graphene preparation method flow chart based on mixed inorganic acid solvent of the present invention, comprises the following steps:

[0040] S1, pretreatment of raw graphite powder to obtain the graphite powder to be stripped to remove impurities, specifically includes sub-steps: S11, mixing raw graphite powder with deionized water and pure alcohol into 130 to 150 milliliters of deionized water and pure alcohol according to 1 gram of raw graphite powder Mix 130 to 150 ml of pure alcohol, and continue stirring with a magnetic stirrer at room temperature for 24 hours or more to obtain a mixed graphite dispersion. In particular, 1 gram of raw graphite powder can be mixed with 140 ml of deionized water and 140 ml of pure alcohol Mix in proportion; S12, use filter membrane to carry o...

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Abstract

The invention relates to a graphene preparation method based on a mixed inorganic acid solvent. An inorganic acid solvent which is simple to prepare and low in cost is used for replacing an expensive organic solvent to prepare a graphene product by a solvent stripping method, so that the problems of high toxicity and harsh preparation conditions caused by the use of the organic solvent are avoided, the temperature requirement in the process of preparing the graphene by the solvent stripping method is reduced, the time required for graphene stripping treatment is shortened, the preparation process is simplified, and the commercialized and large-scale development of preparing the graphene by the solvent stripping method is more facilitated.

Description

technical field [0001] The invention relates to the technical field of novel material preparation, in particular to a method for preparing graphene based on a mixed inorganic acid solvent. Background technique [0002] Graphene is a carbon atom with sp 2 The hybrid orbitals form a hexagonal two-dimensional carbon nanomaterial with a honeycomb lattice. This special structure endows graphene materials with unique thermal, mechanical and electrical properties. Perfect graphene has an ideal two-dimensional crystal structure consisting of hexagonal lattices and a theoretical specific surface area of ​​up to 2.6×10 2 m 2 / g. Graphene has excellent thermal conductivity (3×10 3 W / (m K)) and mechanical properties (1.06×10 3 GPa). In addition, the stable regular hexagonal lattice structure of graphene makes it have excellent electrical conductivity, and the electron mobility at room temperature is as high as 1.5×10 4 cm 2 / (V·s). Graphene's special structure, outstanding ther...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B32/19
CPCC01B32/19C01B32/192
Inventor 钱晓仑马传龙
Owner BEIJING CHOICE ELECTRONICS TECH CO LTD