Mesoporous carbon material and preparation method thereof

A technology for mesoporous carbon and composite materials, which is applied in the preparation/purification of carbon, nanotechnology for materials and surface science, nanotechnology, etc. There are many steps and the effect of expanding the application field

Active Publication Date: 2018-05-01
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method has many pretreatment steps, and needs to use strong acid as a catalyst, so it needs further improvement.

Method used

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  • Mesoporous carbon material and preparation method thereof
  • Mesoporous carbon material and preparation method thereof
  • Mesoporous carbon material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] (1) Add 1 g of glucose to 6 g of mesoporous silica, stir and mix for 5 minutes at room temperature to obtain a mixture of mesoporous silica and glucose;

[0023] (2) heat-treating the mixture obtained in step (1) at 180°C for 12 hours to dehydrate and carbonize the glucose to obtain a mesoporous silica and carbon composite material;

[0024] (3) Heat treating the composite material obtained in step (2) at 900° C. for 2 hours to obtain a mesoporous silica and mesoporous carbon composite material;

[0025] (4) prepare hydrofluoric acid solution, join the hydrofluoric acid aqueous solution (mass fraction 40%) of 5mL in the mixed solution of ethanol and water, the volume of ethanol is 50mL, and the volume of water is 40mL;

[0026] (5) Add 1 g of the mesoporous silica and mesoporous carbon composite material prepared in step (3) to 80 mL of the hydrofluoric acid solution prepared in step (4), and stir at room temperature for 24 hours. The above solution was centrifuged, wa...

Embodiment 2

[0029] (1) Add 2 g of glucose to 5 g of mesoporous silica, stir and mix for 5 minutes at room temperature to obtain a mixture of mesoporous silica and glucose;

[0030] (2) heat-treating the mixture obtained in step (1) at 180°C for 12 hours to dehydrate and carbonize the glucose to obtain a mesoporous silica and carbon composite material;

[0031] (3) Heat treating the composite material obtained in step (2) at 900° C. for 2 hours to obtain a mesoporous silica and mesoporous carbon composite material;

[0032] (4) prepare hydrofluoric acid solution, join the hydrofluoric acid aqueous solution (mass fraction 40%) of 5mL in the mixed solution of ethanol and water, the volume of ethanol is 60mL, and the volume of water is 50mL;

[0033] (5) Add 1 g of the mesoporous silica and mesoporous carbon composite material prepared in step (3) to 80 mL of the hydrofluoric acid solution prepared in step (4), and stir at room temperature for 24 hours. The above solution was centrifuged, wa...

Embodiment 3

[0036] (1) Add 4 g of glucose to 4 g of mesoporous silica, stir and mix for 5 minutes at room temperature to obtain a mixture of mesoporous silica and glucose;

[0037] (2) heat-treating the mixture obtained in step (1) at 190°C for 18 hours to dehydrate and carbonize the glucose to obtain a mesoporous silica and carbon composite material;

[0038] (3) Heat treating the composite material obtained in step (2) at 850° C. for 3 hours to obtain a mesoporous silica and mesoporous carbon composite material;

[0039] (4) prepare hydrofluoric acid solution, join the hydrofluoric acid aqueous solution (mass fraction 40%) of 7.5mL in the mixed solution of ethanol and water, the volume of ethanol is 70mL, and the volume of water is 60mL;

[0040] (5) Add 1.5 g of the mesoporous silica and mesoporous carbon composite material prepared in step (3) to 90 mL of the hydrofluoric acid solution prepared in step (4), and stir at room temperature for 18 hours. The above solution was centrifuged...

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Abstract

The invention relates to a mesoporous carbon material, which takes mesoporous silica as a template and uses glucose as a carbon source, and a preparation method of the mesoporous carbon material, belonging to the technical field of preparation and application of carbon materials. The preparation method comprises the steps of adding 1-10g of the glucose into 1-6g of the mesoporous silica, and stirring for 5-10min at the room temperature so as to obtain a mixture of the mesoporous silica and the glucose; after that, carrying out heat treatment for 12-24h at the temperature of 180-200 DEG C so asto prepare a mesoporous silica and carbon composite material; carrying out heat treatment for 2-4h at the temperature of 800-900 DEG C so as to prepare a mesoporous silica and mesoporous carbon composite material, adding a hydrofluoric acid aqueous solution into the composite material, and stirring for 12-24h at the room temperature; finally, carrying out centrifugal separation on the obtained solution, washing, and drying to obtain the mesoporous carbon material. The mesoporous carbon material has a three-dimensional porous structure, the pore sizes are 2-5nm, the pore volumes are 0.5-1.5cm<3>/g, and the BET specific surface area is 400-900m<2>/g.

Description

technical field [0001] The invention belongs to the technical field of preparation and application of carbon materials, and specifically relates to a mesoporous carbon material with mesoporous silica as a template and glucose as a carbon source and a preparation method thereof. The mesoporous carbon material has a large specific surface area, Large porosity and adjustable pore structure. Background technique [0002] Mesoporous carbon materials have the advantages of large specific surface area, large porosity, easy control of pore structure and high stability, especially the advantages of mesoporous structure and excellent physical and chemical properties of carbon materials, which are unmatched by other materials. Adsorption and separation, energy, sensors, electricity and other fields have been widely used. Excellent preparation methods are the prerequisite and guarantee for the wide application of mesoporous carbon materials in many research fields. Therefore, finding ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B32/05B82Y30/00B82Y40/00
CPCB82Y30/00B82Y40/00
Inventor 刘森张彤费腾
Owner JILIN UNIV
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