Method for manufacturing carbon nanotube

A technology of carbon nanotubes and manufacturing methods, which is applied in the field of carbon nanotube manufacturing, can solve problems such as complex manufacturing processes of carbon nanotubes, and achieve the effect of low volume density

Inactive Publication Date: 2011-02-16
OTSUKA CHEM CO LTD
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  • Abstract
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  • Claims
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Problems solved by technology

[0003] However, in order to separate the carbon nanotubes grown by this method from the substrate, it is necessary to use a method of picking up the carbon nanotubes with tweezers and peeling them from the substrate, or using a blade such as a blade to cut the carbon nanotubes and separate them from the substrate. methods, etc., there is a problem that the production process of carbon nanotubes is complicated

Method used

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  • Method for manufacturing carbon nanotube
  • Method for manufacturing carbon nanotube
  • Method for manufacturing carbon nanotube

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Embodiment

[0053] Hereinafter, the present invention will be described more specifically using examples. However, the present invention is not limited to these examples at all, and can be appropriately changed within a range that does not change the gist.

[0054]

[0055] Add 500 ml of water to 10 g of wollastonite (Nyglos No. 5, fiber diameter: 5 μm, fiber length: 50 μm), and stir well to prepare a dispersion slurry.

[0056] Add 5.4 μ nickel nitrate (reagent special grade) to 500 ml of water and dissolve. 0.7 g of ammonium molybdate (special grade reagent) was added to this solution and dissolved. This solution (catalyst liquid) was added to the above-mentioned slurry.

[0057] The slurry was stirred for 1 hour, left to stand, washed with water three times by decantation, and separated by filtration.

[0058] The obtained filter cake was dried at 120° C. for 1 hour, and ground with a mortar to obtain wollastonite carrying the catalyst.

[0059]

[0060] 0.5 g of the obtained wo...

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Abstract

Carbon nanotubes oriented in one direction are efficiently and easily manufactured. The method is provided with a step of bringing a solution, which contains metal ions to be a catalyst for growing carbon nanotubes, into contact with crystalline metal oxide particles, and adhering the catalyst on the surfaces of the metal oxide particles; a step of growing carbon nanotubes on the surfaces of the metal oxide particles whereupon the catalyst is adhered, by a CVD method or a combustion method, and manufacturing metal oxide particles which support the carbon nanotubes grown parallel to a direction substantially vertical to the surfaces of the metal oxide particles; and a step of removing the metal oxide particles from the metal oxide particles supporting the carbon nanotubes.

Description

technical field [0001] The invention relates to a method for manufacturing carbon nanotubes and carbon nanotubes prepared by the method. Background technique [0002] In recent years, research and development on carbon nanotubes has prevailed. As a method capable of mass-producing carbon nanotubes, there is known a method of producing and growing carbon nanotubes on a substrate carrying a metal catalyst by CVD (Chemical Vapor Growth) (Patent Document 1, etc.). According to this method, carbon nanotubes aligned in one direction can be efficiently produced. [0003] However, in order to separate the carbon nanotubes grown by this method from the substrate, it is necessary to use a method of picking up the carbon nanotubes with tweezers and peeling them from the substrate, or using a blade such as a blade to cut the carbon nanotubes and separate them from the substrate. method, etc., there is a problem that the production process of carbon nanotubes is complicated. [0004] ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B31/02H01G11/22H01G11/24H01G11/38H01G11/42
CPCC01B2202/34B82Y40/00C01B2202/08C01B31/0233B82Y30/00C01B32/162B82B3/0009B82B3/0066
Inventor 后藤俊树谷真佐人
Owner OTSUKA CHEM CO LTD
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