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Preparation method of C/CoS2 nanotube structure regulated and controlled by self-template

A nanotube, self-template technology, applied in the direction of carbon nanotubes, nanotechnology for materials and surface science, nanocarbon, etc., can solve the problems of low electrocatalytic performance, few chemical active sites, small specific surface area, etc. The effect of large specific surface area, high product purity and simple preparation method

Active Publication Date: 2021-01-08
NAT UNIV OF DEFENSE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention proposes a simple self-template-regulated C / CoS in order to avoid the shortcomings of the above-mentioned prior art 2 Fabrication method of nanotube structures aimed at addressing existing CoS 2 Small specific surface area, less chemically active sites, low electrocatalytic performance, etc., and at the same time improve the application of the electrode material in electricity and photoelectric catalysis

Method used

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  • Preparation method of C/CoS2 nanotube structure regulated and controlled by self-template
  • Preparation method of C/CoS2 nanotube structure regulated and controlled by self-template
  • Preparation method of C/CoS2 nanotube structure regulated and controlled by self-template

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] This example prepares C / CoS according to the following steps 2 Chained nanorods:

[0049] a. Weigh 0.58g Co(NO 3 ) 2 ·6H 2 O or 0.47g CoCl 2 ·6H 2 O, 0.27g NH 4 Cl, 0.6g urea, mix it evenly and put it in a 50ml beaker, add 35ml deionized water, stir it evenly, then put it in a 50ml reaction kettle, put it in an oven for 6-12 hours, and the reaction temperature is 140°C , to obtain the initial product Co(OH)Cl-urea;

[0050] b. After the reaction is cooled, take out the initial product Co(OH)Cl-urea, and then perform ultrasonication on the initial product Co(OH)Cl-urea to ensure its purity. The ultrasonication time is 20 minutes, and then use alcohol and deionized water several times Wash the initial product Co(OH)Cl-urea, and finally place the initial product Co(OH)Cl-urea in a vacuum drying oven for 12-24 hours, and the oven temperature is 60°C;

[0051] c. Weigh 0.01g of the initial product Co(OH)Cl-urea and place it in the high temperature zone of the chemica...

Embodiment 2

[0053] This example prepares C / CoS according to the following steps 2 Miscible Phases of Nanorods and Nanotubes:

[0054] a. Weigh 0.58g Co(NO 3 ) 2 ·6H 2 O or 0.47g CoCl 2 ·6H 2 O, 0.27g NH 4 Cl, 0.6g urea, mix it evenly and put it in a 50ml beaker, add 35ml deionized water, stir it evenly, then put it in a 50ml reaction kettle, put it in an oven for 6-12 hours, and the reaction temperature is 140°C , to obtain the initial product Co(OH)Cl-urea;

[0055] b. After the reaction is cooled, take out the initial product Co(OH)Cl-urea, and then perform ultrasonication on the initial product Co(OH)Cl-urea to ensure its purity. The ultrasonication time is 20 minutes, and then use alcohol and deionized water several times Wash the initial product Co(OH)Cl-urea, and finally place the initial product Co(OH)Cl-urea in a vacuum drying oven for 12-24 hours, and the oven temperature is 60°C;

[0056] c. Weigh 0.01g of the initial product Co(OH)Cl-urea and place it in the high temper...

Embodiment 3

[0058] This example prepares C / CoS according to the following steps 2 nanotube

[0059] a. Weigh 0.58g Co(NO 3 ) 2 ·6H 2 O or 0.47g CoCl 2 ·6H 2 O, 0.27g NH 4 Cl, 0.6g urea, mix it evenly and put it in a 50ml beaker, add 35ml deionized water, stir it evenly, then put it in a 50ml reaction kettle, put it in an oven for 6-12 hours, and the reaction temperature is 140°C , to obtain the initial product Co(OH)Cl-urea;

[0060] b. After the reaction is cooled, take out the initial product Co(OH)Cl-urea, and then perform ultrasonication on the initial product Co(OH)Cl-urea to ensure its purity. The ultrasonication time is 20 minutes, and then use alcohol and deionized water several times Wash the initial product Co(OH)Cl-urea, and finally place the initial product Co(OH)Cl-urea in a vacuum drying oven for 12-24 hours, and the oven temperature is 60°C;

[0061] c. Weigh 0.01g of the initial product Co(OH)Cl-urea and place it in the high temperature zone of the chemical vapor d...

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PUM

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Abstract

The invention belongs to the technical field of nano optoelectronic materials, and discloses a preparation method of a C / CoS2 nanotube with a controllable structure. According to the method, a one-step simple chemical vapor diffusion strategy is adopted, controllable growth from nanorods to nanotubes is achieved by regulating and controlling the reaction atmosphere, namely the Ar / H2 gas ratio, andthe method has the advantages of being simple in preparation process, stable in product structure, high in catalytic activity site and the like and has efficient catalytic activity. The problems of uncontrollable product structure, few catalyst active sites and the like in the traditional preparation method are solved. The method has important engineering practical significance, and has wide application prospects in the fields of military industry, spaceflight, energy, electronics, environment and the like.

Description

technical field [0001] The present invention relates to C / CoS with controllable structure 2 The invention relates to a nanotube preparation method, which belongs to the technical field of nanometer optoelectronic materials. Background technique [0002] The global energy crisis has become a serious worldwide problem. Traditional energy sources such as petroleum, coal, and natural gas are primary energy sources and are non-renewable. It is particularly important to seek sustainable, renewable, and clean energy sources. In the past few decades, people have devoted themselves to the development of new energy sources such as hydrogen fuel, solar cells, lithium-sulfur batteries, metal-air batteries, electrochemical reduction of carbon dioxide, perovskite solar cells, sensors, etc. Among them, hydrogen energy has become the most popular energy source for scientific research scholars. research object of interest. As we all know, hydrogen has always been considered as a clean, ea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G51/00C01B32/16C01B32/15B82Y30/00B82Y40/00B01J27/043B01J35/10
CPCC01G51/30C01B32/16C01B32/15B82Y30/00B82Y40/00B01J27/043C01P2004/133C01P2004/16C01P2004/80B01J35/33B01J35/40B01J35/61
Inventor 朱志宏史正添戚悦张检发郭楚才刘肯徐威杨镖袁晓东
Owner NAT UNIV OF DEFENSE TECH
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