Method for growing carbon nanotubes

A technology of carbon nanotubes and nanoparticles, which is applied in the field of growing carbon nanotubes, can solve problems such as low controllability, poor uniformity of carbon nanotubes, and uneven diameter of catalyst particles, so as to achieve control of tube wall thickness and growth density Effect

Active Publication Date: 2018-08-28
PEKING UNIV SHENZHEN GRADUATE SCHOOL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, since the cracking of the catalyst is free cracking, the diameter of the catalyst particles produced is extremely uneven
Therefore, the carbon nanotubes grown by traditional preparation methods have poor uniformity and low controllability.

Method used

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  • Method for growing carbon nanotubes
  • Method for growing carbon nanotubes
  • Method for growing carbon nanotubes

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Embodiment Construction

[0022] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0023] The "up", "down", "left" and "right" mentioned in the following detailed description are described with reference to the directions in the drawings, and those skilled in the art can clearly understand the meanings thereof.

[0024] figure 1 Shown is a flowchart of an exemplary method for growing carbon nanotubes according to one embodiment of ...

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Abstract

The invention relates to a method for growing carbon nano-tubes. The method includes the steps that a substrate with the surface covered with nano-particles is prepared; with the nano-particles serving as an etching mask, the substrate is etched; the nano-particles are removed from the substrate; a catalyst is deposited on the substrate; the carbon nano-tubes are grown on the substrate with the catalyst deposited.

Description

technical field [0001] The present application relates to the field of nanomaterials, in particular to a method for growing carbon nanotubes. Background technique [0002] Carbon nanotubes are tubular one-dimensional nanomaterials formed by winding single-layer or multi-layer graphene sheets. Carbon nanotubes have excellent optical, electrical, thermal and mechanical properties, and their current densities are as high as, for example, 10 9 A / cm 2 , the electron mobility can reach, for example, 10000cm 2 / V·s, the thermal conductivity is as high as 6600W / mK, and the Young's modulus is as high as 1TPa, which is about 5 times that of steel. Based on the above excellent properties, carbon nanotubes can be used in many fields such as electricity and mechanics. [0003] At present, the main methods for preparing carbon nanotubes are: arc discharge method, laser burning candle method, chemical vapor deposition method, etc., and chemical vapor deposition method is the most commo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B32/16B82Y30/00
Inventor 张敏吴玉翠
Owner PEKING UNIV SHENZHEN GRADUATE SCHOOL
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