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High-density carbon nanotube array and method for preparing same

A carbon nanotube array and carbon nanotube technology, applied in the field of carbon nanotube array and its preparation, can solve the problems of complex preparation process and the inability to adjust the density of carbon nanotube array arbitrarily, and achieve simple process, easy practical application, The effect of tight arrangement

Active Publication Date: 2011-06-22
TSINGHUA UNIV +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the preparation process of this method is relatively complicated, and the density of the prepared carbon nanotube array cannot be adjusted arbitrarily.

Method used

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  • High-density carbon nanotube array and method for preparing same
  • High-density carbon nanotube array and method for preparing same
  • High-density carbon nanotube array and method for preparing same

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Embodiment Construction

[0024] The high-density carbon nanotube array and its preparation method of this embodiment will be described in detail below with reference to the accompanying drawings.

[0025] see figure 1 , the preparation method of the high-density carbon nanotube array in this embodiment mainly includes the following steps:

[0026] Step 1: providing a carbon nanotube array, preferably, the array is a super-aligned carbon nanotube array.

[0027] In this embodiment, the preparation method of the carbon nanotube array adopts the chemical vapor deposition method, and the specific steps include: (a) providing a flat substrate, which can be a P-type or N-type silicon substrate, or a silicon substrate with an oxide layer formed on it. Silicon substrate, the present embodiment preferably adopts a 4-inch silicon substrate; (b) uniformly form a catalyst layer on the surface of the substrate, and the catalyst layer material can be selected from iron (Fe), cobalt (Co), nickel (Ni) or any of them...

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Abstract

The invention relates to a high-density CNTs array. In the high-density CNTs array, the CNTS are arranged tightly and the array is directed. The CNTs array has a single-dimension-like single crystal structure. Density is 0.1 to 2.2g / cm<3>. The invention also relates to a preparation method of the high-density CNTs array. The preparation method comprises the procedures as follows: the CNTs array is provided and formed at a substrate; and pressure is exerted on the CNTs array in the direction parallel to the substrate so that the high-density CNTs array is made. The preparation method has simple procedures and higher efficiency and is easy for practical application. In addition, the density of the prepared CNTs array is controllable.

Description

technical field [0001] The invention relates to a carbon nanotube array and a preparation method thereof, in particular to a high-density carbon nanotube array and a preparation method thereof. Background technique [0002] Carbon nanotubes are a new type of one-dimensional nanomaterials discovered in the early 1990s. The special structure of carbon nanotubes determines its special properties, such as high tensile strength and high thermal stability; with the change of the helical mode of carbon nanotubes, carbon nanotubes can exhibit metallic or semiconducting properties. Because carbon nanotubes have an ideal one-dimensional structure and excellent properties in the fields of mechanics, electricity, and heat, they have shown broad application prospects in interdisciplinary fields such as materials science, chemistry, and physics. They are widely used in scientific research and industrial applications. has also received increasing attention. [0003] At present, relativel...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C30B29/62C01B31/02C30B29/02C30B25/00
Inventor 罗春香张晓波姜开利刘亮范守善
Owner TSINGHUA UNIV