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Al/CuO/porous graphene nano-composite energetic material and preparation method thereof

A nano-composite material, porous graphene technology, applied in chemical instruments and methods, metal/metal oxide/metal hydroxide catalysts, attack equipment, etc., can solve the problem of uneven particle size of the composite, low product purity, It is easy to introduce impurities and other problems to achieve the effect of increasing density and surface active sites, high product purity, and accelerating combustion rate

Inactive Publication Date: 2017-11-17
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the particle size of the compound prepared by the existing method is not uniform, and impurities are easily introduced, the product purity is not high, and the obtained product is less

Method used

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  • Al/CuO/porous graphene nano-composite energetic material and preparation method thereof
  • Al/CuO/porous graphene nano-composite energetic material and preparation method thereof
  • Al/CuO/porous graphene nano-composite energetic material and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] The specific steps for the preparation of an Al / CuO / porous graphene nanocomposite energetic material are as follows:

[0038] (1) Preparation of porous graphene

[0039] Add 1.14 mmol ammonium molybdate to 50 mL of graphene oxide aqueous dispersion with a concentration of 4 mg / mL, ultrasonically disperse for 30 min, continue mechanical stirring for 9 h, and then freeze-dry; place the freeze-dried mixture in a tube furnace, Heat to 650°C at a heating rate of 10°C / min, keep it warm for 2 hours, and then cool to room temperature under the protection of nitrogen; immerse the product obtained after heat treatment in 1mol / L HCl aqueous solution, and stir mechanically for 7 days to remove the metal in the product oxide, and then filtered, washed with water, washed with alcohol, and dried in vacuum to obtain porous graphene;

[0040] (2) Preparation of CuO / porous graphene nanocomposites

[0041]Take 10 mg of the porous graphene prepared in step (1) and add it to a mixed solut...

Embodiment 2

[0048] The specific steps for the preparation of an Al / CuO / porous graphene nanocomposite energetic material are as follows:

[0049] (1) Preparation of porous graphene

[0050] Add 1.2mmol ammonium molybdate to 50mL graphene oxide aqueous dispersion with a concentration of 3.5mg / mL, ultrasonically disperse for 1h, continue mechanical stirring for 10h, and freeze-dry; place the freeze-dried mixture in a tube furnace , heated to 600°C at a heating rate of 8°C / min, kept warm for 2.2h, and then cooled to room temperature under the protection of nitrogen; the product obtained after heat treatment was immersed in 0.8mol / L HCl aqueous solution, and mechanically stirred for 7d to remove the product The metal oxide in the mixture is filtered, washed with water, washed with alcohol, and dried in vacuum to obtain porous graphene;

[0051] (2) Preparation of CuO / porous graphene nanocomposites

[0052] Take 8 mg of the porous graphene prepared in step (1) and add it to a mixed aqueous so...

Embodiment 3

[0059] The specific steps for the preparation of an Al / CuO / porous graphene nanocomposite energetic material are as follows:

[0060] (1) Preparation of porous graphene

[0061] Add 1.5mmol ammonium molybdate to 50mL graphene oxide aqueous dispersion with a concentration of 4.5mg / mL, ultrasonically disperse for 50min, continue to stir for 12h, and then freeze-dry; place the freeze-dried mixture in a tube furnace, Heat to 620°C at a heating rate of 12°C / min, keep it warm for 2.1h, then cool to room temperature under the protection of nitrogen; immerse the product obtained after heat treatment in 1.2mol / L HCl aqueous solution, stir mechanically for 6d, and remove the product The metal oxide, then filtered, washed with water, washed with alcohol, vacuum dried, porous graphene;

[0062] (2) Preparation of CuO / porous graphene nanocomposites

[0063] Take 12 mg of the porous graphene prepared in step (1) and add it to a mixed solution consisting of 300 mL of 0.03 mol / L copper nitra...

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Abstract

The invention relates to an Al / CuO / porous graphene nano-composite energetic material and a preparation method thereof and belongs to the technical field of preparation of nano-composite energetic materials. According to the method, induced assembly is performed by means of high adsorption power of porous graphene, so that the contact distance between powdered Al and CuO is increased, mass transfer distance is reduced, meanwhile, the contact area of powdered Al and CuO is increased, the chemical kinetic action of the material is enhanced, energy release rate is controlled, combustion speed is increased, combustion efficiency is improved, specific impulse is improved, and detonation reaches a more ideal state; the preparation process is convenient to operate, the method is simple, safe and low in cost, and product purity is high.

Description

technical field [0001] The invention belongs to the technical field of preparation of nanocomposite energetic materials, and relates to an Al / CuO / porous graphene nanocomposite energetic material and a preparation method thereof. Background technique [0002] Nanocomposite energetic materials refer to composite materials composed of supporting matrix and organic or inorganic energetic materials. In nanocomposite energetic materials, nano-aluminum powder has a high specific surface area due to nanoscale particles, which increases the contact area between oxidant and combustible agent, and can obtain energetic materials with high energy density and high release rate. [0003] At present, there are few types of nanocomposite energetic materials, and due to the extremely small size of nano-aluminum powder, high surface energy, high surface activity, and poor stability, the particles attract each other and agglomerate, making the surface energy and surface As the activity decreas...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C06B23/00C06B29/04C06D5/04B01J23/72
CPCB01J23/72C06B23/007C06B29/04C06D5/04
Inventor 李国平张晨晖罗运军夏敏
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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