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Preparation method of carbon nanotube

A technology of carbon nanotubes and carbon sources, applied in the fields of carbon nanotubes, nanocarbons, chemical instruments and methods, etc.

Pending Publication Date: 2021-04-27
BEIHAI HKC OPTOELECTRONICS TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of this application is to provide a method for preparing carbon nanotubes, aiming to solve the technical problem of how to improve the purity and density of carbon nanotubes

Method used

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  • Preparation method of carbon nanotube
  • Preparation method of carbon nanotube

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preparation example Construction

[0023] The embodiment of the present application provides a method for preparing carbon nanotubes, such as figure 1 Shown, this preparation method comprises the steps:

[0024] S01: Provide mesoporous silica molecular template;

[0025] S02: Depositing a carbon source on the mesoporous silica molecular template by atomic layer deposition, and then removing the mesoporous silica molecular template to obtain carbon nanotubes.

[0026] The preparation method of the carbon nanotubes of the present application uses the mesoporous silica molecular template as the deposition substrate, adopts atomic layer deposition technology, deposits the carbon source on the mesoporous silica molecular template, and then removes the mesoporous silica After molecular templates, pure carbon nanotubes with good three-dimensional shape retention can be obtained; during the above-mentioned carbon source deposition process, when the carbon source molecules reach the surface of the deposition substrate,...

Embodiment 1

[0045] A method for preparing carbon nanotubes, comprising the steps of:

[0046] (1) Preparation of mesoporous silica molecular template:

[0047] The molar ratio TEOS:HCl:P123:C 2 h 5 OH=(0.1-1):(0.1-0.5):(0.01:0.1):(5-30) The raw materials are mixed to obtain a mixed liquid; the above mixed liquid is rapidly dispersed at 30-60°C and 400-1200rpm 30-300min; after uniform dispersion, lower to room temperature (25°C), and stand for 2-10h; obtain mesoporous silica molecular template by spin deposition or dipping deposition.

[0048] In this example, by adjusting different contents of TEOS, mesoporous silica molecular templates with different pore capacities and pore diameters can be obtained, and the specific results are shown in Table 1 below. Subsequent preparation of carbon nanotubes is carried out using the molecular template as a matrix.

[0049] Table 1

[0050] TEOS content (%) Pore ​​capacity (m 3 / g)

Aperture (nm) Mesoporous silica molecular tem...

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Abstract

The invention relates to the technical field of nano material preparation, in particular to a preparation method of carbon nanotubes, which comprises the following steps: providing a mesoporous silica molecular template; and depositing a carbon source on the mesoporous silica molecular template by adopting an atomic layer deposition method, and then removing the mesoporous silica molecular template to obtain the carbon nanotube. The process does not need the participation of a catalyst, and the obtained high-density and high-purity carbon nanotube has a good application prospect in a flexible display.

Description

technical field [0001] The application belongs to the technical field of nanomaterial preparation, and in particular relates to a method for preparing carbon nanotubes. Background technique [0002] With the rapid development of the electronics industry, the demand for low-energy, multi-functional and environmentally friendly electronic products continues to increase. Flexible electronic devices have become the next generation of electronic devices due to their unique flexibility, extensibility, high efficiency, multi-functionality, and portability. An important area of ​​industrial development has attracted more and more attention. Among them, transistors are used as amplifiers and switches in many electronic device drive parts, and are widely used in electronic devices. Therefore, flexible thin film transistors are also a research hotspot in recent years. Touch screen materials also need to be flexible, and indium tin oxide (ITO) is difficult to meet the requirements. The...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B32/16
CPCC01B32/16C01B2202/22
Inventor 卓恩宗夏玉明许哲豪郑浩旋
Owner BEIHAI HKC OPTOELECTRONICS TECH CO LTD