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Preparation method of carbon nanometer tube film

A carbon nanotube thin film and mixed solution technology, applied in the field of materials, can solve the problems of uneven distribution, low output, thick pipe diameter, etc., and achieve the effects of good uniformity, high output, and less impurities and defects

Inactive Publication Date: 2017-09-22
沙冰娟
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Carbon nanotubes prepared by existing processes usually have technical problems of low yield, low purity, thick tube diameter and uneven distribution

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The preparation method of carbon nanotube film, comprising steps:

[0020] (1), stir ferrocene, 0.8wt% thiophene and oxygen-containing hydrocarbon dehydrated ethanol to prepare a mixed solution with a concentration of 0.04g / ml;

[0021] (2), the mixed solution is coated on the surface of the N-type silicon substrate;

[0022] (3), add the mixed solution into the resistance furnace, and under argon protective gas, heat up to 1250 ℃;

[0023] (4), pass into the hydrogen with flow rate of 450sccm, keep warm for 8 minutes, and form the carbon nanotube film on the surface of the N-type silicon substrate;

[0024] (5), stop feeding hydrogen, cool the furnace, and take out the sample.

[0025] In this example, the carbon nanotube thin film prepared on the surface of the substrate has high yield and good quality, and the carbon nanotubes have high purity, are in the form of a network structure, have a tube diameter of about 18 nm, and have good uniformity, and there are fewer...

Embodiment 2

[0027] The preparation method of carbon nanotube film, comprising steps:

[0028] (1), stirring cobalt, 0.6wt% thiophene and oxygen-containing hydrocarbon dehydrated ethanol to prepare a mixed solution with a concentration of 0.035-0.05g / ml;

[0029] (2), the mixed solution is coated on the surface of the P-type silicon substrate;

[0030] (3), add the mixed solution into the resistance furnace, and under nitrogen protective gas, heat up to 1100 ℃;

[0031] (4), pass into the hydrogen with flow rate of 500sccm, keep warm for 6 minutes, and form the carbon nanotube film on the surface of the p-type silicon substrate;

[0032] (5), stop feeding hydrogen, cool the furnace, and take out the sample.

[0033] In this example, the carbon nanotube thin film prepared on the surface of the substrate has high yield and good quality, and the carbon nanotubes have high purity, are in the form of a network structure, have a tube diameter of about 18 nm, and have good uniformity, and there...

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Abstract

The invention discloses a preparation method of a carbon nanometer tube film. The method comprises the following steps of (1) uniformly stirring catalysts, thiophene and oxygen-containing hydrocarbon absolute ethyl alcohol; preparing a mixed solution with the concentration being 0.035 to 0.05g / ml; (2) coating the surface of a substrate with the mixed solution; (3) adding the mixed solution into a resistance furnace; under the protection gas condition, raising the temperature to 1100 to 1350 DEG C; (4) introducing hydrogen gas with the flow rate being 400 to 500 sccm; performing heat insulation for 6 to 8 minutes; forming a carbon nanometer tube film onto the surface of the substrate; (5) stopping the introduction of the hydrogen gas; cooling the furnace; taking out a sample. The preparation method has the advantages that the carbon nanometer tube film prepared on the surface of the substrate has high yield and high quality; the purity of the carbon nanometer tube is high; a reticular structure is formed; the pipe diameter distribution is about 18nm; the uniformity is good; impurities and defects in the product are few.

Description

Technical field [0001] The present application relates to the field of material technology, and in particular to a method for preparing a carbon nanotube film. Background technique [0002] The discovery of carbon nanotubes has led people to open the door to the nanometer world. Due to its special structure and excellent mechanical, thermal and electrical properties, it has very wide application prospects in materials science, nanoelectronics, biology and other aspects, causing conducted extensive scientific research. The vertically arranged carbon nanotube array is more conducive to certain properties due to its advantages such as high orientation and consistent aspect ratio. It has very important engineering significance in thermal conductivity, electrical conductivity, super-strong fibers, field emission, etc. [0003] Carbon nanotubes prepared by existing processes usually have technical problems such as low yield, low purity, large tube diameter and uneven distribution...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B32/16
CPCC01B2202/30C01B2202/36
Inventor 沙冰娟
Owner 沙冰娟