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Aluminum nanometer particles and preparation method thereof

A technology of aluminum nano and particles, which is applied in nanotechnology, nanotechnology, nanotechnology for materials and surface science, etc., can solve the problems of high equipment requirements, poor particle shape uniformity, and difficult control of product shape, and achieve particle The effect of high content and less impurities

Inactive Publication Date: 2017-10-03
BEIJING UNIV OF CHEM TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The mechanical ball milling method is conducive to the realization of mass production, but it is easy to introduce impurities, and the uniformity of the particle shape is poor; the product obtained by the gas phase condensation method has high purity, but the equipment requirements are high, and the product shape is not easy to control; the commonly used liquid phase chemical synthesis method, for the shape Regulation provides the possibility, but the reaction is too fast during the preparation process, and the particle size of the product is not easy to control

Method used

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  • Aluminum nanometer particles and preparation method thereof
  • Aluminum nanometer particles and preparation method thereof
  • Aluminum nanometer particles and preparation method thereof

Examples

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Effect test

Embodiment 1

[0038] Add 0.10ml of aniline to 20ml of toluene after dehydration and oxygen removal, stir and mix well to form a mixed solution, and put it in a 50ml flask. Then add 0.13g of aluminum chloride powder into the mixed solution, raise the temperature to 80°C, stir well to completely dissolve the aluminum chloride, then add 0.075g of lithium aluminum hydride powder into the flask, stir vigorously to fully mix with the solution. The flask was placed in an oil bath at 120°C for 4 hours, then taken out and cooled naturally in air. Pour the cooled solution into a centrifuge tube and centrifuge at 8000rpm for 20min, remove the supernatant. Then disperse the concentrated suspension with 15 mL of acetone, ultrasonicate for 5 min, and centrifuge at 8000 rpm for washing; repeat the operation three times. Vacuum dried, isolated from oxygen and stored for later use. attached figure 1 a is the SEM image of the aluminum nanoparticles prepared in this example. The experimental result is: th...

Embodiment 2

[0040] Add 0.37ml of aniline to 20ml of toluene after dehydration and oxygen removal, stir and mix well to form a mixed solution, and put it in a 50ml flask. Then add 0.32g of aluminum acetylacetonate powder into the mixed solution, raise the temperature to 80°C, stir well to completely dissolve the aluminum chloride, then add 0.075g of lithium aluminum hydride powder into the flask, stir vigorously to fully mix with the solution. The flask was placed in an oil bath at 120°C for 4 hours, then taken out and left to cool naturally in the air. Pour the cooled solution into a centrifuge tube and centrifuge at 8000rpm for 20min, remove the supernatant. Then disperse the concentrated suspension with 15 mL of acetone, ultrasonicate for 5 min, and centrifuge at 8000 rpm for washing; repeat the operation three times. Vacuum dried, isolated from oxygen and stored for later use. attached figure 1b is the SEM image of the aluminum nanoparticles prepared in this example. The experiment...

Embodiment 3

[0042] Add 1ml of N-methylaniline to 20ml of toluene after dehydration and oxygen removal, stir and mix well to form a mixed solution, and put it in a 50ml flask. Then add 0.63g of aluminum chloride powder into the mixed solution, raise the temperature to 80°C, stir well to completely dissolve the aluminum chloride, then add 0.57g of lithium aluminum hydride powder into the flask, stir vigorously to fully mix with the solution. The flask was placed in an oil bath at 120°C for 4 hours, then taken out and cooled naturally in air. Pour the cooled solution into a centrifuge tube and centrifuge at 8000rpm for 20min, remove the supernatant. Then disperse the concentrated suspension with 15 mL of acetone, ultrasonicate for 5 min, and centrifuge at 8000 rpm for washing; repeat the operation three times. Vacuum dried, isolated from oxygen and stored for later use. attached figure 1 c is the SEM image of the aluminum nanoparticles prepared in this example. The experimental result is...

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Abstract

The invention discloses aluminum nanometer particles and a preparation method thereof and belongs to the technical field of inorganic advanced nanometer materials. The diameter of each aluminum nanometer particle ranges from 15 nanometers to 1000 nanometers. The preparation method comprises the steps of adding an aluminum source to an organic reaction solution of ammonium salt, and raising the temperature to achieve dissolution; adding lithium aluminum hydride to the solution, and then making an obtained mixture react for 1-72 hours at the temperature of (100-165) DEG C, so that aluminum nanometer particle suspension liquid is obtained; and conducting solid-liquid separation, so that solids, namely the aluminum nanometer particles, are obtained. According to the preparation method of the aluminum nanometer particles, a simple and effective solvothermal method is adopted, so that the obtained aluminum nanometer particles are high in content and small in number of impurities.

Description

technical field [0001] The invention belongs to the technical field of inorganic advanced nanometer materials, and in particular relates to an aluminum nanoparticle and a preparation method thereof. Background technique [0002] Aluminum nanoparticles refer to ultra-fine aluminum materials with a grain size of nanometer scale. Compared with traditional energetic materials, aluminum nanoparticles have become one of the unique components of rocket propellants and explosives due to their high energy density, low oxygen consumption and high reactivity. The self-assembly of nano-aluminum and other metal oxide nanomaterials can also increase the burning speed and enhance the shock wave, which is expected to deliver targeted drugs to cancer cells without damaging healthy cells. In addition, the preparation and application of noble metal nanoparticles have been relatively mature in recent years, but the high cost of noble metals restricts the large-scale application of metal nanoma...

Claims

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Application Information

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IPC IPC(8): B22F9/24B22F1/00B82Y30/00B82Y40/00
CPCB82Y30/00B82Y40/00B22F9/24B22F1/054
Inventor 罗亮李杨刘英兰
Owner BEIJING UNIV OF CHEM TECH
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