Preparation method of metal-fullerene composite nano-powder

A nano-powder and fullerene technology, applied in the field of fullerene, can solve problems such as the introduction of impurities, restrictions on material types, and the inability to prepare highly active metals, and achieve the effect of small metal restrictions and reduced usage

Active Publication Date: 2021-01-22
内蒙古碳谷科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] Theoretically speaking, the three methods of electroless plating, electroplating and sol-gel method can achieve atomic-molecular level mixing, but there are unavoidable limitations on the types of materials, such as some highly active metals cannot be prepared, and the process A large amount of impurities were introduced into the

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  • Preparation method of metal-fullerene composite nano-powder
  • Preparation method of metal-fullerene composite nano-powder

Examples

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preparation example Construction

[0029]A method for preparing metal-fullerene composite nano powder is prepared by using a roll-to-roll coating machine. Specifically, it includes the following processes:

[0030](1) Install organic film coils as organic substrates in the roll-to-roll coating machine;

[0031](2) Put high-purity metal and high-purity fullerene powder into the evaporation source of the coating machine. The evaporation source corresponding to the metal can be a resistance heating source, an induction heating source, or a focused electron beam heating source. The heating source corresponding to the fullerene powder adopts a resistance heating source.

[0032](3) Start the vacuum pumping system to pump the vacuum chamber to high vacuum;

[0033](4) Turn on the evaporation power supply and adjust the input power so that stable metal vapor and fullerene vapor are formed at the evaporation source, and the two vapors are co-deposited on the substrate; adjust the volume of the organic film substrate according to the nee...

Embodiment 1

[0037]In the preparation process, the PE film is used as the organic substrate, and the vacuum degree of the vacuum chamber background is 5×10-4Pa; the parameter conditions are: the rotation speed of the PE film is 5 m / min, the temperature of the PE film is 25 degrees; the heating temperature of the aluminum source is 750 degrees; The fullerene heating temperature is 500 degrees; the PE film reciprocates 10 times, and the resistance value of the composite film is measured to be 1.5 megaohms; take out the composite film and immerse it in acetone. After the substrate is completely dissolved, filter to obtain the powder, and the powder is tested by scanning electron microscope. It can be seen that the diameter of the powder is about 50 nanometers. It can be seen that the nanoparticles in the aluminum-fullerene composite film obtained are completely non-adhesive, and the subsequent organic matrix dissolution and removal can obtain extremely uniform and spherical nanometer powders. Body,...

Embodiment 2

[0039]During the preparation process, the PE film is used as the substrate, the vacuum degree of the vacuum chamber is 5×10-4Pa; the parameter conditions: the rotation speed of the PE film is 5 m / min, the temperature of the PE film is 25 degrees; the heating temperature of the aluminum source is 750 degrees; the fullerene The heating temperature is 500 degrees; the PE film reciprocates 20 times, and the resistance value of the composite film is 700 kohm; take out the composite film, immerse it in acetone, and filter the powder after the substrate is completely dissolved. The powder is tested by scanning electron microscopy, and the particle size is known. About 230 nanometers, see for detailsfigure 2As shown, the nano powder is a relatively uniform flake-like nano powder, the thickness of the flake is about 70 nanometers to 100 nanometers, and the length (width) of the flake is 100 nanometers to 300 nanometers.

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Abstract

The invention relates to a preparation method of metal-fullerene composite nano-powder. The preparation method of the metal-fullerene composite nano-powder comprises the following preparation steps: S1, respectively heating fullerene and metal in a vacuum environment, so that the formed steam joints deposits on an organic matrix, wherein the resistance value of the deposited layer is controlled tobe not less than 10 kilohms, and thus a metal-fullerene composite film growing in a discontinuous island mode is obtained; and S2, dissolving the organic matrix deposited with the metal-fullerene composite film by adopting a solvent, and after the organic matrix is completely dissolved, carrying out filtering and drying to obtain the uniform metal-fullerene composite nano-powder, wherein the metal can stably exist in the air, and the organic matrix is an organic thin film. The preparation method is simple, no impurity is introduced, the material limitation is small, and the metal-fullerene composite nano-powder prepared through the preparation method is uniform.

Description

Technical field[0001]The invention relates to the field of fullerenes, in particular to a method for preparing metal-fullerene composite nano powder.Background technique[0002]Because C60Its unique spatial structure has many excellent properties, such as superconductivity, high pressure resistance, chemical corrosion resistance, etc., so it has potential applications in the fields of light, electricity, and magnetism. But at present, fullerenes basically exist in the form of powders or compounds. By combining metals and fullerenes to form atomic-molecular-level composite nanomaterials, metal nanoparticles can be given more special properties. The nanopowders can be used as fillers for coatings and powders for 3D printing. body. The new nanopowder formed by the composite of metal / fullerene makes fullerene show broader application prospects. At present, the composite of metal and fullerene is mostly mechanical ball milling, electroless plating, electroplating, sol-gel method, etc.[0003...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F9/00C23C14/26C23C14/30C23C14/06C23C14/20C23C14/54C23C14/58
CPCB22F9/00C23C14/26C23C14/30C23C14/0605C23C14/20C23C14/0005C23C14/545C23C14/5873
Inventor 孙永青陈益钢张永春李智安蔺峰
Owner 内蒙古碳谷科技有限公司
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