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Method for preparing carbon nano tube including Ethylenediamine double-injection

A technology of carbon nanotubes and ethylenediamine, applied in the direction of nanotechnology, nanotechnology, nanostructure manufacturing, etc., to achieve the effect of increasing binding force and improving safety

Inactive Publication Date: 2007-09-19
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is limited to the doping preparation of carbon nanotubes, and there is no research on the control and adjustment of the doping process.

Method used

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  • Method for preparing carbon nano tube including Ethylenediamine double-injection
  • Method for preparing carbon nano tube including Ethylenediamine double-injection
  • Method for preparing carbon nano tube including Ethylenediamine double-injection

Examples

Experimental program
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Effect test

example 1

[0021] Ferrocene methanol saturated solution and ethylenediamine are used as raw materials, and 1000ml / min argon is used as carrier gas. Using syringe 1 driven by a micro-injection pump, a saturated solution of ferrocenemethanol was introduced into a quartz tube reactor equipped with a quartz plate at an injection rate of 10ml / h, and at the same time, using syringe 2 driven by a micro-injection pump, ethylenediamine Inject 2.5ml / h into a quartz tube reactor and react at 900°C for 40min to prepare bamboo carbon nanotubes.

example 2

[0023] The experimental conditions and process were the same as in Example 1, but the reaction temperature was changed to 850° C. to prepare bamboo carbon nanotubes.

example 3

[0025] The experimental conditions and process were the same as in Example 1, but the reaction temperature was changed to 800° C. to prepare bamboo carbon nanotubes.

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PUM

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Abstract

The present invention discloses a method of preparing carbon nanotube by ethylene diamine double injection, which belongs to the carbon nanotube preparation technology. The method comprises the steps of: injecting ferrocene liquid hydrocarbon solution into a quartz tube reactor by an injector 1 driven by a microinjection pump, using ferrocene methanol solution and ethylene diamine as raw material, or ferrocene ethanol solution and ethylene diamine as raw material, or ferrocene toluene solution and ethylene diamine as raw material, or ferrocene dimethylbenzene solution and ethylene diamine as raw material, and using argon gas as carrier gas; and injecting ethylene diamine into a quartz tube reactor by an injector 2 driven by a microinjection pump; and obtaining the carbon nanotube by reacting for 40 min at 600~950 DEG C. The present invention has the advantages of that the insolubility and the chemical reaction between the different precursors can be avoided by using double injection to replace single injection; the structure of the carbon nanotube can be controlled by controlling the injection. The carbon nanotube of the present invention is adapted to functional material and composite material.

Description

technical field [0001] The invention relates to a method for preparing carbon nanotubes by double injection of ethylenediamine, which belongs to the preparation technology of carbon nanotubes. Background technique [0002] Carbon nanotubes have excellent electrical and mechanical properties due to their unique microstructure. Since its discovery, it has been one of the hotspots in the field of nanomaterials research, among which how to controllably synthesize carbon nanotubes with specific structures and properties is one of the most challenging tasks. According to theoretical speculation and experimental proof, nitrogen doping of carbon nanotubes is an effective means to realize their controllable synthesis. [0003] At present, the nitrogen-doped preparation of carbon nanotubes is mainly realized by using nitrogen-containing precursors, including ammonia and other carbon-nitrogen organic compounds. The nitrogen-doped preparation of carbon nanotubes mainly uses a single p...

Claims

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Application Information

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IPC IPC(8): C01B31/02B82B3/00
Inventor 李亚利冯建民侯峰
Owner TIANJIN UNIV
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