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Method for preparation of bamboo-shaped carbon nanotube by ultrasonic atomization

A technology of carbon nanotubes and ultrasonic atomization, applied in the direction of nanotechnology, nanotechnology, nanotechnology for materials and surface science, etc., can solve the problems of high price and high production cost, and achieve simple reaction device and low processing capacity adjustable effect

Inactive Publication Date: 2016-03-30
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the methods for preparing bamboo-shaped carbon nanotubes mainly include traditional methods such as graphite arc method, chemical vapor deposition method, and laser evaporation method. 4 , C 3 h 6 Such as gas as raw material, high temperature reaction, so there are potential safety problems, the catalyst needed is expensive, making the preparation cost higher

Method used

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  • Method for preparation of bamboo-shaped carbon nanotube by ultrasonic atomization
  • Method for preparation of bamboo-shaped carbon nanotube by ultrasonic atomization
  • Method for preparation of bamboo-shaped carbon nanotube by ultrasonic atomization

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] 1. Add 577mgFeCl 3 , 354.4 mg of terephthalic acid was dissolved in 50 mL of redistilled N,N-dimethylformamide, and it was fully dissolved by ultrasonication at room temperature for 5 minutes to obtain a uniformly mixed solution.

[0026] 2. Add the homogeneous solution obtained in 1 into the atomizer, and ultrasonically atomize to produce droplets, which are passed through N 2 Gas (0.6L / min) was loaded into the tube furnace which had been preheated to 700°C for reaction.

[0027] 3. The obtained solid particles are collected by ultrasonic elution with a mixed solution of ethanol and water, washed with a solvent, and then dried in vacuum to obtain bamboo-shaped carbon nanotubes.

Embodiment 2

[0029] 1. Add 577mgFeCl 3 , 354.4 mg of terephthalic acid was dissolved in 50 mL of redistilled N,N-dimethylformamide, and it was fully dissolved by ultrasonication at room temperature for 5 minutes to obtain a uniformly mixed solution.

[0030] 2. Add the homogeneous solution obtained in 1 into the atomizer, and ultrasonically atomize to produce droplets, which are passed through N 2 Gas (0.6L / min) was loaded into a tube furnace that had been preheated to 800°C for reaction.

[0031] 3. The obtained solid particles are collected by ultrasonic elution with a mixed solution of ethanol and water, washed with a solvent, and then dried in vacuum to obtain bamboo-shaped carbon nanotubes.

[0032] Embodiment 3~13 and embodiment 1~2 difference see the table below:

[0033]

[0034] Characterization of the structure and morphology of the obtained carbon nanotubes

[0035] Adopt the JEM-2000EX transmission electron microscope produced by JEOL Electronics Co., Ltd. of Japan and th...

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Abstract

The invention relates to a method for preparation of a bamboo-shaped carbon nanotube by ultrasonic atomization. The method includes the steps of: dissolving a metal salt and an organic ligand in certain solvent, conducting ultrasonic atomization to produce fine droplets, introducing an inert gas and loading the fine droplets into a tube furnace pre-heated to certain temperature, and carrying out reaction for a period of time to obtain the bamboo-shaped carbon nanotube. Compared with the existing technology for preparation of bamboo-shaped carbon nanotubes, the method provided by the invention can acquire the bamboo-shaped structure with good appearance, has the advantages of simple operation, high reaction safety performance, continuous preparation and production, and controllable and adjustable treatment capacity, is suitable for large-scale production, and is beneficial to realizing industrial application of carbon nanotubes.

Description

technical field [0001] The invention relates to a synthesis method for preparing carbon nanotube materials, especially for the preparation of bamboo-shaped carbon nanotubes. Wide range of industrial applications. Background technique [0002] Carbon nanotubes, also known as bucky tubes, are one-dimensional quantum materials with a special structure (the radial dimension is on the order of nanometers, the axial dimension is on the order of microns, and both ends of the tube are basically sealed). It is mainly composed of carbon atoms arranged in a hexagon to form a coaxial tube with several to dozens of layers. Because of its novel and unique physical, chemical and mechanical properties, such as extremely strong electrical conductivity, excellent field emission performance, both metallic and semiconducting properties, good flexibility, etc., it is used in nano-device materials, electronic material devices, storage High-tech fields such as energy storage materials have attra...

Claims

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Application Information

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IPC IPC(8): C01B31/02B82Y30/00
Inventor 吴仁安牛欢
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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