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High-speed jet impinging device and method of preparing two-dimensional nanomaterial with the same

An impact device, high-speed jet technology, applied in chemical instruments and methods, nano-carbon, bulk chemical production, etc., can solve the problems of low preparation efficiency, inability to scale up applications, etc., and achieve short preparation time, small structural damage, and easy operation. Effect

Pending Publication Date: 2019-08-23
HUARUIMOSHI DANYANG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Liquid phase direct exfoliation methods mainly include ultrasound, ball milling, high shear, etc. These methods have disadvantages such as low preparation efficiency and inability to scale up applications.

Method used

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  • High-speed jet impinging device and method of preparing two-dimensional nanomaterial with the same
  • High-speed jet impinging device and method of preparing two-dimensional nanomaterial with the same
  • High-speed jet impinging device and method of preparing two-dimensional nanomaterial with the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0068] The high-speed jet impingement device of this embodiment is composed of a storage tank 1 , a high-pressure pump 2 , a jet impingement device 3 , a return pipeline 4 and a circulating cooling device 5 . Wherein, the outlet of the storage tank 1 is connected to the inlet of the high-pressure pump 2, the outlet of the high-pressure pump 2 is connected to the inlet of the jet impact device 3, and the outlet of the jet impact device 3 passes through the back flow The pipeline 4 is connected to the inlet of the storage tank 1 , and the circulating cooling device 5 is installed on the return pipeline 4 .

[0069] In this embodiment, the storage tank 1 is a V-shaped stainless steel barrel with a capacity of 1 cubic meter;

[0070] Described return pipeline 4 is the seamless stainless steel pipe that commercially available diameter is 24mm;

[0071] Described high-pressure pump 2 is the plunger pump that model is 3W60;

[0072] see Figure 2-3 , the jet impact device is a tar...

Embodiment 2

[0076] The high-speed jet impingement device of this embodiment is composed of a storage tank 1 , a high-pressure pump 2 , a jet impingement device 3 , a return pipeline 4 and a circulating cooling device 5 . Wherein, the outlet of the storage tank 1 is connected to the inlet of the high-pressure pump 2, the outlet of the high-pressure pump 2 is connected to the inlet of the jet impact device 3, and the outlet of the jet impact device 3 passes through the back flow The pipeline 4 is connected to the inlet of the storage tank 1 , and the circulating cooling device 5 is installed on the return pipeline 4 .

[0077] In this embodiment, the storage tank 1 is a V-shaped stainless steel barrel with a capacity of 2 cubic meters;

[0078] Described return pipeline 4 is the seamless stainless steel pipe that commercially available diameter is 30mm;

[0079] The high-pressure pump 2 is a reciprocating pump whose model is 3DP80;

[0080] see Figure 7-8 , the jet impingement device is...

Embodiment 3

[0085] Utilize the device of embodiment 1 to prepare graphene nanoplate, may further comprise the steps:

[0086] Step 1: Add 325-mesh flake graphite powder into 10L of a mixed solution containing 50% by volume of isopropanol and water at a concentration of 5 mg / ml, stir evenly, and put it into storage tank 1;

[0087] Step 2: Using the high-pressure pump 2 to increase the pressure of the solution obtained in step 1 to about 40 MPa, and transport the solution to the target plate type jet impact device 3 for processing;

[0088] Step 3: The treated solution is returned to the storage tank 1 through the return line 4, and the pulverization step is repeated in the storage tank 1 for 3 hours. During this process, the temperature of the dispersion is maintained at about 25 degrees by the circulating cooling device 5;

[0089] Step 4: Repeat the above steps 1-3 for about 2 hours so that the thickness of the obtained graphene nanosheet is less than 100nm;

[0090] Step 5: After the ...

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Abstract

The invention relates to a high-speed jet impinging device and a method of preparing a two-dimensional nanomaterial. The device comprises: a storage tank, a high-pressure pump, a jet impinging apparatus, a reflux pipeline and a circulating cooling apparatus. The outlet of the storage tank is connected to the inlet of the high-pressure pump, the outlet of the high-pressure pump is connected to theinlet of the jet impinging apparatus, the outlet of the jet impinging apparatus is connected to the inlet of the storage tank through the reflux pipeline, and the circulating cooling apparatus is installed on the reflux pipeline. The method includes: mixing original layered particles with a stripping solvent and then putting the mixture into the storage tank; increasing the pressure of the solution through the high-pressure pump, and transporting the solution into the jet impinging apparatus for treatment; returning the treated solution to storage tank through the reflux pipeline, and loweringthe temperature of the solution through the circulating cooling apparatus; repeating the above steps till a nano-sheet thickness of less than 100 nm; and separating the obtained nano-sheet solid phase out of the solution, and performing drying into powder. The method provided by the invention has the advantages of simple process, high product quality and high yield.

Description

technical field [0001] This application relates to but not limited to the field of preparation of two-dimensional nanomaterials, in particular but not limited to a high-speed jet impingement device and a method for preparing two-dimensional nanomaterials using the device. Background technique [0002] Two-dimensional nanomaterials refer to materials with only one dimension in the nanometer scale in the three-dimensional space. Due to their unique structure and properties, they have broad application prospects in many fields. Two-dimensional nanomaterials mainly include nanoscale sheets of graphene, molybdenum disulfide, boron nitride, tungsten disulfide, titanium disulfide, zirconium disulfide, niobium diselenide, antimony diselenide, bismuth tritelluride, etc. . Among them, graphene has excellent properties in terms of electrical, thermal, mechanical and chemical stability, and can be applied in the fields of nanoelectronic devices, sensors, optoelectronic devices and ener...

Claims

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Application Information

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IPC IPC(8): B01J19/26C01G39/06C01B21/064
CPCB01J19/26C01G39/06C01B21/064C01B2204/04C01P2004/20C01P2004/64C01P2004/03C01P2004/04Y02P20/54
Inventor 刘磊张一翔
Owner HUARUIMOSHI DANYANG CO LTD
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