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Large-scale, controllable and low-cost graphene preparing method

A graphene, large-scale technology, applied in the field of graphene production and preparation technology, can solve the problems of increased economic cost, complicated preparation process, and insufficient process flow, and achieve the effect of high yield, low cost and simple operation process

Inactive Publication Date: 2019-08-09
SICHUAN OUXUN ENERGY ENG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the existing graphene preparation process is not fine enough, resulting in low oxidation efficiency of graphite powder during the preparation of graphene, increasing economic costs, and the preparation process is complicated, which is not suitable for mass production

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A large-scale, controllable, and low-cost graphene preparation method is prepared by redoxing graphite, which specifically includes the following steps:

[0020] Step (1): Put the preferred graphite into a pulverizer to pulverize to obtain graphite particles, and then put the graphite particles into a grinder to grind to obtain graphite fine powder;

[0021] Step (2): Add the graphite micropowder in step (1) into the oxidation mixture, then add the mixture mixed with graphite micropowder into the stirring tank, stir and mix, and heat the mixture by heating in a water bath, And control the temperature, make it stir and mix and oxidize, use the oxidation function of the oxide to increase the distance between the graphite layers, insert the oxide between the graphite layers, and prepare the graphite oxide mixture;

[0022] Step (3): Pour the graphite oxide mixture in step (2) into a filter screen for filtration, then wash with water 2-3 times, then wash with hydrogen perox...

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PUM

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Abstract

The invention discloses a large-scale, controllable and low-cost graphene preparing method. Graphene is prepared through oxidation and reduction of graphite. The graphene preparing method includes thesteps that the preferred graphite is placed into a smashing machine and smashed to obtain graphite particles, and then the graphite particles are placed into a grinding machine and ground to obtain graphite micro powder; the graphite micro powder is added into oxidation mixed liquor, and then the mixed liquor with the mixed graphite micro powder is added into a stirring pot, and is stirred and mixed; meanwhile, the mixed liquor is heated in a water bath heating manner, the temperature is controlled, the mixed liquor is stirred and mixed and subjected to an oxidation reaction, and oxidized graphite mixed liquor is prepared. According to the large-scale, controllable and low-cost graphene preparing method, the graphene is prepared in the manner of combining a chemical technology and a physical technology, the oxidized graphene generated in the preparing process can be directly selected and used as required, and the whole process is safe, rapid, simple in operation procedure, low in cost, high in yield and suitable for large-scale production.

Description

technical field [0001] The invention relates to a graphene production and preparation process, in particular to a large-scale, controllable, and low-cost graphene preparation method. Background technique [0002] Graphene is a two-dimensional carbon nanomaterial composed of carbon atoms with sp² hybrid orbitals in a hexagonal honeycomb lattice. It has excellent optical, electrical, and mechanical properties. It is widely used in materials science, micro-nano processing, energy, It has important application prospects in biomedicine and drug delivery, and is considered to be a revolutionary material in the future; with the gradual breakthrough of graphene mass production and large-scale problems, the pace of industrial application of graphene is accelerating. Based on the existing research results, the first fields of commercial application may be mobile devices, aerospace, and new energy batteries; The demonstrated quantum effects can be verified experimentally; in two-dimen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B32/19
CPCC01B32/19
Inventor 王群力王平王江张伟俞祖英王洪杰
Owner SICHUAN OUXUN ENERGY ENG TECH