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Apparatus and process for preparing graphene by the technology of cavitating jet

A graphene technology, which is applied in the field of graphene preparation devices, can solve the problems of the limitation of preparation methods, the quality of graphene is not perfect, and cannot satisfy the mass production of graphene, etc., and achieves the simple and easy preparation process and low production cost Effect

Active Publication Date: 2011-11-23
HUARUIMOSHI DANYANG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Substrate growth methods include CVD method, SiC method, etc. Although graphene with the desired shape can be prepared, showing good application prospects in the electronics field, due to the limitation of the preparation method, it cannot meet the needs of mass production of graphene.
Recently, related foreign studies have reported the preparation of graphene in the liquid phase. From the atomic force microscope (AFM) pictures in the report, it can be seen that the quality of graphene prepared by these methods is not perfect, which may be due to the fact that these methods are in There are certain limitations in the force applied when peeling graphite flakes

Method used

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  • Apparatus and process for preparing graphene by the technology of cavitating jet
  • Apparatus and process for preparing graphene by the technology of cavitating jet
  • Apparatus and process for preparing graphene by the technology of cavitating jet

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] A jet cavitation device such as figure 1 As shown, the cavitation generator as figure 2 As shown, the process of preparing graphene by jet cavitation method is:

[0059] The first step: 1.9% graphite powder with an average particle size of 12 μm, 0.1% sodium carboxymethylcellulose modifier (CMC) and 98% water are prepared to prepare an aqueous graphite solution with good dispersion stability, and put it into the storage tank 1 in;

[0060] Step 2: Set the working pressure of the plunger pump 5 to 20Mpa, open the valve 3 at the water inlet pipe 2, the graphite aqueous solution enters the plunger pump 5 from the storage tank 1, and turn on the motor 4 to run the system, and the graphite aqueous solution is pressurized to the specified Pressure 20Mpa; The power of the motor 4 is 30KW;

[0061] The third step: the graphite aqueous solution after pressurization enters the cavitation generator 8 through the high-pressure pipe 7, and the graphite particles in the solution ...

Embodiment 2

[0067] A jet cavitation device such as figure 1 As shown, the cavitation generator as image 3 As shown, the process of preparing graphene by jet cavitation method is:

[0068] The first step: 4.9% graphite powder with an average particle size of 25 μm, 3.1% sodium lauryl sulfate and 92% water are prepared to prepare an aqueous graphite solution with good dispersion stability, and put it into the storage tank 1;

[0069] Step 2: Set the working pressure of the plunger pump 5 to 40MPa, open the valve 3 at the water inlet pipe 2, the graphite aqueous solution enters the plunger pump 5 from the storage tank 1, and turn on the motor 4 to run the system, and the graphite aqueous solution is pressurized to the specified Pressure 40Mpa; The power of the motor 4 is 30KW;

[0070] The third step: the graphite aqueous solution after pressurization enters the cavitation generator 8 through the high-pressure pipe 7, and the graphite particles in the solution are peeled off under the act...

Embodiment 3

[0076] A jet cavitation device such as figure 1 As shown, the cavitation generator as figure 2 As shown, the process of preparing graphene by jet cavitation method is:

[0077] The first step: 9.1% graphite powder with an average particle size of 45 μm, 4.9% sodium lauryl sulfate and 86% water are prepared to prepare an aqueous graphite solution with good dispersion stability, and put it into the storage tank 1;

[0078] Step 2: Set the working pressure of the plunger pump 5 to 70MPa, open the valve 3 at the water inlet pipe 2, the graphite aqueous solution enters the plunger pump 5 from the storage tank 1, and turn on the motor 4 to run the system, and the graphite aqueous solution is pressurized to the specified Pressure 70Mpa; The power of the motor 4 is 30KW;

[0079] The third step: the graphite aqueous solution after pressurization enters the cavitation generator 8 through the high-pressure pipe 7, and the graphite particles in the solution are peeled off under the ac...

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Abstract

Provided is an apparatus and a process for preparing graphene by the technology of cavitating jet. The apparatus comprises a storage tank, a water inlet pipe, a valve, a motor, a plunger pump, a compression gauge, a high pressure pipe, a cavitation generator, a cycle water cooling means and a return line. The outlet of the storage tank is connected with the inlet side of the water inlet pipe, andthe outlet side of the water inlet pipe is connected with the water inlet of the plunger pump; the valve is installed on the water inlet pipe, the plunger pump is driven by the motor, and the operating pressure of the plunger pump is displayed on the compression gauge; the water outlet of the plunger pump is connected with the water inlet of the high pressure pipe, and the water outlet of the high pressure pipe is connected with the water inlet of the cavitation generator; the water outlet of the cavitation generator is connected with the water inlet of the return line, the water outlet of the return line is connected with the inlet of the storage tank, and the cycle water cooling means is installed on the return line. The preparation method comprises seven steps. The conception of the invention is scientific; the process is advanced; production cost is low; no environmental pollution is generated; industrial large scale production can be realized; the apparatus and process provided in the invention have a wide application prospect in the technical field of preparing graphene.

Description

technical field [0001] The invention relates to a device and method for preparing graphene by jet cavitation technology, which belongs to a technology for efficiently preparing graphene by using a mechanical method, and specifically relates to a graphene preparation device and method. Background technique [0002] Graphene has presented a With unique physical, chemical and mechanical properties, it has shown broad application prospects and has received unprecedented attention and attention. Although the prospect of graphene is very attractive, there are still many challenging problems, among which the preparation of graphene is the most fundamental of all problems. If graphene with considerable quality and yield cannot be prepared efficiently and easily, Then the research and application of other aspects of graphene will be greatly limited. Similarly, in order to realize the application value and economic benefits of graphene, it is necessary to consider the output and eff...

Claims

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Application Information

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IPC IPC(8): C01B31/04
Inventor 沈志刚李金芝易敏麻树林张晓静邢玉山
Owner HUARUIMOSHI DANYANG CO LTD
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