Preparation method of amorphous state carbon nano tube

A technology of amorphous carbon and nanotubes, applied in the field of nanomaterials, can solve the problems of complex process parameters and high cost, and achieve the effects of easy process conditions, good product performance and simple process flow

Inactive Publication Date: 2012-07-18
CHINA UNIV OF GEOSCIENCES (WUHAN)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Among these three patents, the process parameters of the first two patents are relati...

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  • Preparation method of amorphous state carbon nano tube
  • Preparation method of amorphous state carbon nano tube
  • Preparation method of amorphous state carbon nano tube

Examples

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Embodiment 1

[0032] (1) Weigh 10.00g of attapulgite, add it to 150ml, 5mol / L HCl, stir magnetically at 70°C for 2 hours, then filter, wash until neutral, and bake in an oven at 105°C for 24 hours to obtain Acid-activated attapulgite.

[0033] (2) Weigh 2.50 g of the activated attapulgite and 3.00 ml of furfuryl alcohol. The two were added to 50ml of distilled water, mixed evenly, and then transferred into an autoclave, and the autoclave was placed in a homogeneous reactor at 180°C for 6 hours to prepare the precursor.

[0034] (3) Put the precursor in a porcelain boat, put the porcelain boat into a tube-type high-temperature furnace, and heat it at 800°C under N 2 Burn in air for 4 hours. After the burning, the sample was cooled to room temperature with the furnace, the sample was taken out and washed with 40wt% HF for 15 hours to remove the mineral template, and then the purified carbon was washed with concentrated HCl, and finally washed with deionized water until neutral, filtered, an...

Embodiment 2

[0037] (1) Weigh 10.00 g of attapulgite, place it in a crucible, and bake it at 200° C. for 3 hours to obtain heat-activated attapulgite.

[0038] (2) Weigh 2.50 g of the above heat-activated attapulgite and 5.00 ml of furfuryl alcohol. The two were added to 50ml of distilled water, mixed evenly, and then transferred into an autoclave, and the autoclave was placed in a homogeneous reactor at 150°C for 12 hours to prepare the precursor.

[0039] (3) Put the precursor in a porcelain boat, put the porcelain boat into a tube-type high-temperature furnace, and heat it at 600°C under N 2 Burn in air for 3 hours. After the burning, the sample was cooled to room temperature with the furnace, the sample was taken out and washed with 40wt% HF for 15 hours to remove the mineral template, and then the purified carbon was washed with concentrated HCl, and finally washed with deionized water until neutral, filtered, and placed at 100°C drying treatment to obtain amorphous carbon nanotubes...

Embodiment 3

[0042] (1) Weigh 10.00g of attapulgite, add it to 150ml, 1mol / L HNO 3 Magnetically stirred at 70°C for 2 hours, filtered, washed until neutral, and baked in an oven at 105°C for 24 hours to obtain acid-activated attapulgite.

[0043] (2) Weigh 2.00 g of the activated attapulgite and 3.00 g of glucose. Add the two into 60mL of distilled water, adjust the pH to about 8, mix well, and then move it into an autoclave, and place the autoclave in a homogeneous reactor at 180°C for 24 hours to prepare the precursor.

[0044] (3) Put the precursor in a porcelain boat, put the porcelain boat into a tube-type high-temperature furnace, and heat it at 900°C under N 2 Burn in air for 5 hours. After the burning, the sample was cooled to room temperature with the furnace, the sample was taken out and washed with 40wt% HF for 15 hours to remove the mineral template, and then the purified carbon was washed with concentrated HCl, and finally washed with deionized water until neutral, filtered,...

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Abstract

The invention provides a preparation method of an amorphous state carbon nano tube, which comprises the following steps of (1) enabling an attapulgite to be placed in a container for roasting at 200-500 DEG C and conducting thermal activating treatment or adding in 1 mol/L-5 mol/L acid for conducting acid activating treatment; (2) enabling activated attapulgite and carbon source materials to be added in water for evenly mixing according to the mass ratio of 1:1-3, enabling water solution of evenly mixed attapulgite-carbon source material to be placed in a high pressure reactor which is placedin a homogeneous phase reactor, keeping warm at 130-180 DEG C for 6h-48h to obtain a precursor; and (3) enabling the precursor to fire for 3-6 hours at 600-900 DEG C under the atmosphere of N2 protection, enabling products to cool to reach room temperature along a furnace after firing, using hydrogen fluoride (HF) solution to fully wash, removing formworks in products, leaving carbon, using densehydrogen chloride (HCl) to wash and purify the carbon, finally using water to wash until neutral is achieved, filtering and stoving to obtain needed amorphous state carbon nano tube. The preparation method is wide in source of feed, low in price, simple in process flow, easy in process condition achieving, low in preparation cost, and good in prepared product performance.

Description

technical field [0001] The invention relates to the technical field of nanometer materials, in particular to a method for preparing amorphous carbon nanotubes. Background technique [0002] Since their discovery in 1991, carbon nanotubes have attracted widespread attention because of their unique structure and physical and chemical properties. It is a seamless, hollow tube formed by rolling graphite sheets formed by carbon atoms, and can generally be divided into single-walled carbon nanotubes and multi-walled carbon nanotubes. Carbon nanotubes are widely used in engineering materials, catalysis, adsorption-separation, energy storage devices and electrodes due to their small size, high mechanical strength, large specific surface area, electrical conductivity, strong interface effect and unique mechanical, physical and chemical properties. It has broad application prospects in many fields such as materials. [0003] In recent years, amorphous carbon nanotubes have become a ...

Claims

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Application Information

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IPC IPC(8): C01B31/02B82Y40/00C01B32/16
Inventor 孙露严春杰王洪权肖国琪王群英袁六四夏云山
Owner CHINA UNIV OF GEOSCIENCES (WUHAN)
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