Manufacturing method of packed magnetic metal nanometer carbon ball

A technology of magnetic metal nanometers and a manufacturing method, which is applied in the field of manufacturing high-purity filled magnetic metal nanocarbon spheres, and can solve the problems of being limited to a standstill state, unable to separate by magnetic force, and difficult to prepare filled magnetic metal nanocarbon spheres.

Inactive Publication Date: 2004-03-03
IND TECH RES INST
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  • Summary
  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the strong van der Waals force between carbon nanospheres and carbon nanotubes, it is not easy to separate and purify them in the case of a small amount, because one end of the single-layer carbon nanotubes is coated with metal catalyst particles, and the carbon nanospheres filled with magnetic metal It is also magnetic and cannot be separated by magnetic force
Therefore, the traditional method is not easy to prepare high-purity magnetic metal nanocarbon spheres filled with magnetic metal. The product not only has low purity, but also contains a large amount of carbon ash impurities and single-layer carbon nanotubes.
Moreover, due to the high cost of traditional methods, the related applications of filled magnetic metal nanocarbon spheres have been limited to a standstill.

Method used

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  • Manufacturing method of packed magnetic metal nanometer carbon ball
  • Manufacturing method of packed magnetic metal nanometer carbon ball
  • Manufacturing method of packed magnetic metal nanometer carbon ball

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Embodiment Construction

[0015] The technology of the present invention is mainly to use pulse current (pulse current) to carry out arc discharge reaction under high-pressure inert gas (greater than 1 atmospheric pressure), and through this to change the electrode surface temperature, magnetic metal vapor density and carbon vapor density during arc discharge To improve the yield of carbon spheres, and for the fabrication of magnetic metal-filled nanocarbon spheres.

[0016] Please refer to figure 1 , figure 1 A schematic diagram of an arc reaction chamber useful in the practice of the invention is shown. In the arc reaction chamber 1 at least one pair of electrodes 10, 12 is included as an arc discharge. The inert gas enters the arc reaction chamber 1 through the inlet 12 and is discharged through the outlet 16 . The periphery of the arc reaction chamber 1 is surrounded by flowing cooling water. In the figure, 16 is the cooling water inlet, and 18 is the cooling water outlet.

[0017] In the prese...

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Abstract

A process for preparing the carbon nanospheres containing magnetic metal includes such steps as providing an electric arc reaction chamber containing graphite cathode and composite graphite anode containing at least one magnetic metal or its derivative, filling inertial gas, applying a pulse voltage across anode and cathode, arc discharge reaction, and collecting product deposited on cathode. Its advantages are low cost and easy purifying.

Description

technical field [0001] The invention relates to a method for manufacturing magnetic metal filled carbonnanocapsules, in particular to a method for manufacturing high-purity magnetic metal filled carbonnanocapsules. Background technique [0002] The outer layer of magnetic metal nanocarbon spheres is a polyhedral carbon cluster composed of multilayer graphite layers in a sphere-in-a-sphere structure, and its central part is composed of magnetic metals, metal compounds, metal carbides or alloy materials. The formed magnetic metal nanocarbon spheres are filled with a diameter of about 3--100nm, have a special fullerene (fullerene) structure and optical, electrical, and magnetic properties, and can protect the internal magnetic metal nanoparticles due to the surrounding graphite layer. Avoid oxidation and acid etching. Filled magnetic metal nanocarbon spheres can be used in many fields, such as: medicine (pharmaceutical grade activated carbon); light, heat absorption and magnet...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J19/08
Inventor 黄赣麟
Owner IND TECH RES INST
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