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Method for preparing kilometer-grade ultra-long carbon nanotubes and oversized graphene

An ultra-long carbon nanotube and ultra-large area technology, applied in the field of carbon nanomaterials, can solve the problems of waste liquid pollution, inability to large-scale continuous production, and low purity of carbon nanotubes.

Inactive Publication Date: 2017-10-17
王德龙
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] In order to solve the problems that the carbon nanotubes produced by the existing carbon nanotube preparation method have low purity, irregular tube diameter, micron-scale length, complex process, and inability to produce large-scale and continuous production, and the existing graphene preparation method The irregular shape of the produced graphene has a small unit area, complex process, waste liquid pollution and defects, and can not be produced in a large scale and continuously. Therefore, this method was invented: a kilometer-level ultra-long carbon nanotube and ultra-large The production method of area graphene, this method has the advantages of simple process and can be prepared in large quantities and quickly, and is a new method for producing a kilometer-level ultra-long carbon nanotube and ultra-large area graphene,

Method used

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  • Method for preparing kilometer-grade ultra-long carbon nanotubes and oversized graphene
  • Method for preparing kilometer-grade ultra-long carbon nanotubes and oversized graphene
  • Method for preparing kilometer-grade ultra-long carbon nanotubes and oversized graphene

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Embodiment 1

[0061] Example 1, such as image 3 as shown,

[0062] The device used in the method for producing kilometer-level ultra-long carbon nanotubes 9 of the present invention includes lasers 5, such as Nd:YAG lasers 5 (laser wavelength is 1064nm) capable of exciting continuous lasers and power supplies thereof, including blowers, motors, and other , a hollow cylindrical solid target 17, a storage battery 15, a light bulb 8, a switch 18, the outer surface or a metal cylinder 10 coated with conductive glue are connected in series through wires, and the hollow cylindrical solid target 17 is connected to the outer surface or the metal cylinder 10 coated with conductive glue. Between the metal cylinders 10, the laser beam 6 emitted by the Nd:YAG laser 5 is connected to the ultra-long carbon nanotube 9 produced by the condenser lens 7 bombarding the surface of the hollow cylindrical solid target 17 and forms a closed loop with the above-mentioned elements, In addition, another closed cir...

Embodiment 2

[0072] Example 2, such as Figure 4As shown, the device used in the method for producing kilometer-level super-large-area graphene 14 in the present invention includes a laser 11, such as a rectangular Nd:YAG laser 11 that can excite a continuous laser focus or a focal strip (laser wavelength is 1064nm, focus Or the focal strip is a rectangular laser beam, the long side of which is less than or equal to 5cm) and its power supply, including blower, motor, and hollow cylindrical solid target 17, battery 15, lighting bulb 8, switch 18, outer surface Or the metal cylinder 10 coated with conductive glue is connected in series by a wire, between the hollow cylindrical solid target 17 and the outer surface or the metal cylinder 10 coated with conductive glue, the laser beam 12 emitted by the Nd:YAG laser 11 passes through the rectangular Condenser 13 bombards the surface of hollow cylindrical solid target material 17, and the super large area graphene 14 strips produced are connected...

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Abstract

The invention discloses a method for preparing kilometer-grade ultra-long carbon nanotubes and oversized graphene and belongs to the field of carbon nano materials. By adopting the method disclosed by the invention, problems that the diameters of carbon nanotubes prepared by using a conventional method is not identical, the length is within a micron dimension, processes are complex, on-scale and continuous production are not achieved, graphene produced by using a conventional method is irregular in shape, small in unit area and complex in process and impossible in on-scale or continuous production are solved. According to the technical scheme of the invention, the method comprises the following steps: by taking nano-grade carbon powder and metal powder as raw materials, preparing a hollow cylindrical solid target material; and loading current to the hollow cylindrical solid target material in advance before laser bombardment to the hollow cylindrical solid target material, and collecting, thereby obtaining the ultra-long carbon nanotubes and the oversized graphene. The ultra-long carbon nanotubes and the oversized graphene are mainly used as a carbon nano superconducting material for manufacturing superconducting electromotors and power generators and can be also applied to fields such as nano electronic devices, photon sensors, ultra-light airplanes, superstrong body armors and aerospace elevators.

Description

technical field [0001] The invention relates to carbon nanomaterials and superconducting materials, in particular to a production method of kilometer-level ultra-long carbon nanotubes and ultra-large-area graphene. Background technique [0002] In 1985, Kroto, H.W. and Smalley, R.E. of Rice University in Houston, USA, used a pulsed laser with a wavelength of 532 nanometers and Nd:YAG. to bombard the surface of graphite and discovered footballene. In 1993, S .lijima and DS Bethune have discovered nanomaterials, carbon nanotubes, etc. In 2004, physicists Andre Heim and Konstantin Novoselov of the University of Manchester in the United Kingdom succeeded in experimenting with carbon nanotubes from graphite The sheet-like graphene is separated by mechanical methods. The previous carbon nanotubes were all produced in the laboratory. The carbon nanotubes are short in size and unsatisfactory in shape. They are only a few or hundreds of nanometers long. Graphene The basic structure ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B32/164C01B32/184B82Y30/00
CPCB82Y30/00C01B2204/32C01P2004/04C01P2004/13C01P2004/60C01P2004/64
Inventor 不公告发明人
Owner 王德龙