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Method for preparing branched carbon nano tube by using dimethyl sulphide as carbon source

A carbon nanotube and dimethyl sulfide technology, applied in nanotechnology and other directions, can solve the problems of low yield of branched carbon nanotubes, long preparation process, complicated equipment, etc., and achieve high yield, high purity, and equipment. simple effect

Inactive Publication Date: 2013-11-13
ZHEJIANG NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The carbon source precursors commonly used in this method are: methane, acetylene, toluene, ethanol, and thiophene. Although these methods can achieve the growth of branched carbon nanotubes, there are many defects and deficiencies in the preparation process. For example, the preparation process Long, complex equipment, difficult to control, high cost, low yield of branched carbon nanotubes, etc.

Method used

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  • Method for preparing branched carbon nano tube by using dimethyl sulphide as carbon source
  • Method for preparing branched carbon nano tube by using dimethyl sulphide as carbon source
  • Method for preparing branched carbon nano tube by using dimethyl sulphide as carbon source

Examples

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Effect test

Embodiment 1

[0030] A kind of step that uses dimethyl sulfide as carbon source to prepare branched carbon nanotubes is as follows:

[0031] (1) dissolving ferrocene powder in dimethyl sulfide to prepare a mixed solution, wherein the mass percentage of ferrocene and dimethyl sulfide is 2.4%;

[0032] (2) the mixed solution that step (1) is obtained is put into the Erlenmeyer flask that has air inlet pipe and outlet pipe, wherein, the air outlet of the air inlet pipe in the Erlenmeyer flask is positioned at the liquid level of mixed solution in the Erlenmeyer flask Below, the air outlet of the air outlet pipe in the Erlenmeyer flask is above the liquid level of the mixed solution in the Erlenmeyer flask;

[0033] (3) Hydrogen is entered in the container from the inlet pipe of the Erlenmeyer flask, and the hydrogen in the Erlenmeyer flask and the steam of the mixed solution are output by the outlet pipe;

[0034] (4) Input the steam and nitrogen of the hydrogen and the mixed solution output ...

Embodiment 2

[0036] A kind of step that uses dimethyl sulfide as carbon source to prepare branched carbon nanotubes is as follows:

[0037] (1) dissolving ferrocene powder in dimethyl sulfide to prepare a mixed solution, wherein the mass percentage of ferrocene and dimethyl sulfide is 4.8%;

[0038] (2) the mixed solution that step (1) is obtained is put into the Erlenmeyer flask that has air inlet pipe and outlet pipe, wherein, the air outlet of the air inlet pipe in the Erlenmeyer flask is positioned at the liquid level of mixed solution in the Erlenmeyer flask Below, the air outlet of the air outlet pipe in the Erlenmeyer flask is above the liquid level of the mixed solution in the Erlenmeyer flask;

[0039] (3) Hydrogen is entered in the container from the inlet pipe of the Erlenmeyer flask, and the hydrogen in the Erlenmeyer flask and the steam of the mixed solution are output by the outlet pipe;

[0040] (4) The hydrogen and the steam of the mixed solution output from the Erlenmeyer...

Embodiment 3

[0042]A kind of step that uses dimethyl sulfide as carbon source to prepare branched carbon nanotubes is as follows:

[0043] (1) dissolving ferrocene powder in dimethyl sulfide to prepare a mixed solution, wherein the mass percentage of ferrocene and dimethyl sulfide is 2.9%;

[0044] (2) the mixed solution that step (1) is obtained is put into the Erlenmeyer flask that has air inlet pipe and outlet pipe, wherein, the air outlet of the air inlet pipe in the Erlenmeyer flask is positioned at the liquid level of mixed solution in the Erlenmeyer flask Below, the air outlet of the air outlet pipe in the Erlenmeyer flask is above the liquid level of the mixed solution in the Erlenmeyer flask;

[0045] (3) Hydrogen is entered in the container from the inlet pipe of the Erlenmeyer flask, and the hydrogen in the Erlenmeyer flask and the steam of the mixed solution are output by the outlet pipe;

[0046] (4) The steam and nitrogen of the hydrogen and the mixed solution output from th...

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Abstract

The invention relates to a method for preparing a branched carbon nano tube by using dimethyl sulphide as a carbon source, and aims at providing a method for preparing the branched carbon nano tube by using the dimethyl sulphide as the carbon source, which is simple to operate, has good controllability and high yield of the branched carbon nano tube. In the method, the dimethyl sulphide is used as the carbon source; ferrocene is used as a catalyst precursor; and the dimethyl sulphide reacts with the ferrocene at high temperature to form the branched carbon nano tube. The method for preparing the branched carbon nano tube comprises the following steps of: (1) dissolving ferrocene powder into dimethyl sulphide to prepare mixed solution; (2) placing the obtained mixed solution into a container with a gas inlet pipe and a gas outlet pipe; (3) inputting hydrogen into the container through the gas inlet pipe of the container and outputting steam of the hydrogen and the mixed solution through the gas outlet pipe; and (4) inputting the steam of the hydrogen and the mixed solution, which is output from the container, and protective gas into a reaction chamber of a heating furnace together, performing a reaction at high temperature and cooling to obtain the branched carbon nano tube in the reaction chamber.

Description

technical field [0001] The invention belongs to the technical field of preparation of inorganic nano-carbon materials, in particular to a method for preparing branched carbon nanotubes by using dimethyl sulfide as a carbon source. Background technique [0002] Since the discovery of carbon nanotubes in the early 1990s, due to their excellent electrical, mechanical, thermal, physical and chemical properties, carbon nanotubes have attracted the attention of people from all walks of life in the world. It is a research hotspot in the fields of medicine and other disciplines, and has broad application prospects. Carbon nanotubes are considered to be one of the most promising materials for constructing nanodevices, and can be used as field emission transistors, gas sensors, needle tips of scanning probe microscopes, transport bodies, hydrogen storage materials, field emission nanodevices, etc. Since the discovery of carbon nanotubes, people have done more and more researches, and...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B31/02B82Y40/00
Inventor 杜高辉苏庆梅
Owner ZHEJIANG NORMAL UNIVERSITY
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