A mass production method of long-range ordered mesoporous carbon materials with high nitrogen content and ultra-high specific surface area

A technology with ultra-high specific surface area and high nitrogen content, applied in the field of nanomaterials, it can solve the problems of low doping content and no way to flexibly change nitrogen doping, etc., and achieve the effects of large specific surface area, stable structure and low price.

Active Publication Date: 2022-04-19
苏州丰哲纳米材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The direct carbonization method refers to the use of nitrogen-containing organic small molecules as raw materials for carbon precursors to generate nitrogen-containing carbon precursors and then carbonize; this method depends on the type of nitrogen precursor used to determine the final nitrogen content. The doping content is often very low (generally less than 10%), and there is no way to flexibly change the ratio of nitrogen doping to meet different needs

Method used

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  • A mass production method of long-range ordered mesoporous carbon materials with high nitrogen content and ultra-high specific surface area
  • A mass production method of long-range ordered mesoporous carbon materials with high nitrogen content and ultra-high specific surface area
  • A mass production method of long-range ordered mesoporous carbon materials with high nitrogen content and ultra-high specific surface area

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Embodiment 1

[0036] This embodiment provides a method for mass production of long-range ordered mesoporous carbon materials with high nitrogen content and ultra-high specific surface area, which includes the following steps:

[0037] (a) Heat and stir phenolic resin, tetraethyl orthosilicate, F127 and 0.1 mol / L hydrochloric acid in ethanol solution for 3-5 hours at room temperature, the mass ratio is 1:2:1, and the temperature is 40°C;

[0038] (b) Casting the stirred solution onto roll-to-roll blades, using a PET substrate for roll-to-roll coating at a coating speed of 1 mm / min;

[0039] (c) Pass the film obtained in step (b) through a 40-60°C gradient oven (gradient temperature rise in the range of 40-60°C) using roll-to-roll equipment, and let it stand for 6-12 hours with a temperature gradient of 0.1°C / cm;

[0040](d) Pass the film obtained in step (c) through a 90-100°C gradient oven (gradient temperature rise in the range of 90-100°C) using roll-to-roll equipment, and let it stand ...

Embodiment 2

[0047] This embodiment provides a mass production method for long-range ordered mesoporous carbon materials with high nitrogen content and ultra-high specific surface area, which is basically the same as that in Example 1, except that in step (f), melamine and pre-sintering The mass ratio of the product is 0.5:1.

Embodiment 3

[0049] This embodiment provides a mass production method for long-range ordered mesoporous carbon materials with high nitrogen content and ultra-high specific surface area, which is basically the same as that in Example 1, except that in step (f), melamine and pre-sintering The mass ratio of the product is 1:1; the transmission electron microscope shows figure 1 It can be seen from the figure that the material contains an ordered cylindrical pore structure, and the structure is regularly arranged.

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Abstract

The invention discloses a mass production method of long-range ordered mesoporous carbon materials with high nitrogen content and ultra-high specific surface area. The raw material mixture containing phenolic resin, tetraethyl orthosilicate and F127 is coated, cured and pre-fired , pre-sintering and crushing to obtain powder; then mix the powder with melamine, calcining, lye soaking and drying. Chemicals with stable output and low price are used as raw materials, and the process steps are simple and easy, so that the cost can be greatly reduced, and it is beneficial to the large-scale industrial application of nitrogen-doped mesoporous carbon materials.

Description

technical field [0001] The invention belongs to the field of nanometer materials and relates to a mesoporous carbon material, in particular to a mass production method of a long-range ordered mesoporous carbon material with high nitrogen content and super high specific surface area. Background technique [0002] In recent years, the research and industrial application of carbon nanomaterials are quite active. In view of the hardness, optical properties, heat resistance, radiation resistance, chemical resistance, electrical insulation, electrical conductivity, surface and interface properties of carbon nanomaterials, etc. Excellent than other materials, carbon nanomaterials, such as carbon nanotubes, graphene and other materials, are widely used in superfibers, material reinforcements, hydrogen storage materials, lithium-ion batteries, nanodevices, electronic devices, nanomachines, catalysis and other fields . [0003] Among many nanocarbon materials, ordered mesoporous carb...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B32/05
CPCC01B32/05
Inventor 夏彦丰
Owner 苏州丰哲纳米材料科技有限公司
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