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Preparation method for mesoporous carbon with high nitrogen-doped content

A technology of mesoporous carbon and high nitrogen, which is applied in the field of preparation of mesoporous carbon with high nitrogen doping content, can solve the problems of difficulty in adjusting the hole wall thickness of the mesoporous silicon oxide template, restricting practical application, etc. simple effect

Inactive Publication Date: 2016-02-10
WUXI HUAZHEN NEW ENERGY TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional preparation methods, such as the hard template method, are difficult to adjust the thickness of the pore wall of the mesoporous silica template, which restricts its practical application

Method used

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  • Preparation method for mesoporous carbon with high nitrogen-doped content
  • Preparation method for mesoporous carbon with high nitrogen-doped content

Examples

Experimental program
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Effect test

Embodiment 1

[0016] Mix 1 gram of surfactant F127 with 0.2 gram of melamine, 3 gram of low molecular weight phenolic resin and 10 gram of ethanol, stir evenly, then put in a fume hood to let the ethanol volatilize completely. The obtained compound was aged at 100°C for 24 hours, then placed in a muffle furnace, carbonized at 600°C for 2 hours in a nitrogen atmosphere, cooled to room temperature, and then taken out to obtain mesoporous nitrogen-doped carbon.

Embodiment 2

[0018] Mix 1 gram of surfactant F108 with 0.3 gram of polyacrylonitrile, 7 gram of low molecular weight phenolic resin and 50 gram of ethanol, stir evenly, and then put it in a fume hood to let the ethanol volatilize completely. The obtained compound was aged at 100°C for 24 hours, then placed in a muffle furnace, carbonized at 750°C for 2 hours in a nitrogen atmosphere, cooled to room temperature, and then taken out to obtain mesoporous nitrogen-doped carbon.

Embodiment 3

[0020] Mix 1 gram of surfactant P123 with 0.5 gram of polypyrrole, 10 grams of low-molecular-weight phenolic resin and 80 grams of ethanol, stir evenly, and then put it in a fume hood to let the ethanol evaporate completely. The obtained compound was aged at 100°C for 24 hours, then placed in a muffle furnace, carbonized at 800°C for 2 hours in a nitrogen atmosphere, cooled to room temperature, and then taken out to obtain mesoporous nitrogen-doped carbon.

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Abstract

The invention discloses a preparation method for mesoporous carbon with a high nitrogen-doped content. With the method, through the synergistic effect of an organic small molecule with a high nitrogen content, phenolic resin and a surfactant, a mesoporous polymer composite is formed, and further through carbonization of the mesoporous polymer composite in a high-temperature nitrogen gas atmosphere, the mesoporous carbon with the high nitrogen-doped content is obtained. The nitrogen-doped mesoporous carbon provided by the invention has high content of nitrogen (13 wt%); the material has specific electric capacity of 262 F g<1> (1M of H2SO4) when current density is 0.2 Ag<1>, and can be used as a material of an electric double layer capacitor.

Description

Technical field [0001] The present invention relates to a method for preparing mesoporous carbon with high nitrogen doping content, more specifically to the preparation process of organic-organic composites, that is, the preparation of high molecular surfactants, nitrogen-containing organic small molecules, and low molecular weight phenolic resins. Ethanol and other solutions are mixed according to a certain mass ratio to form an ordered mesoporous polymer compound through organic-organic synergy, and carbonized at high temperature to obtain high nitrogen content doped mesoporous carbon. This kind of mesoporous carbon with high nitrogen doping content has good electrochemical performance and can be used as an electrochemical double capacitor material. Background technique [0002] Electric double-layer capacitors, also known as supercapacitors, are a new type of energy storage element that is both stable and environmentally friendly. It has the advantages of short charging t...

Claims

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Application Information

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IPC IPC(8): C01B31/02
Inventor 谷涛
Owner WUXI HUAZHEN NEW ENERGY TECH
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