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Method for preparing mesoporous carbon material

A mesoporous carbon and mesoporous technology, applied in the field of preparing new mesoporous materials, can solve the problems of high cost and cumbersome process of mesoporous carbon materials, and achieve the effect of simple method and broad application prospects

Inactive Publication Date: 2006-08-23
FUDAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the preparation of mesoporous carbon materials by the hard template method is cumbersome and expensive

Method used

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  • Method for preparing mesoporous carbon material
  • Method for preparing mesoporous carbon material
  • Method for preparing mesoporous carbon material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Embodiment 1, the preparation condition of phenolic resin prepolymer is as follows: 32.0g phenol is melted under 45 ℃ of conditions, add 7.0g mass percent concentration and be 20wt.%NaOH aqueous solution and 56.64g formaldehyde solution (37wt.%), at 65 Reflux at -70°C for 1 hour, after cooling to room temperature, adjust the pH to about 7 with 0.6M hydrochloric acid solution, place the reaction system in a water bath lower than 50°C and distill off water under reduced pressure to obtain 24.8g of the polymer precursor ( Molecular weight 200-500). The obtained 24.8g polymer prepolymer was dissolved in 99.2g ethanol, and the ethanol solution of the phenolic resin prepolymer with a mass percent concentration of 20wt.% was configured for future use.

Embodiment 2

[0041] Example 2, 1.0g F127(EO 106 PO 70 EO 106 ) and 1.0g 0.2M hydrochloric acid solution were dissolved in 10.0g absolute ethanol, stirred to obtain a clear solution, adding 2.5g mass percent concentration in this solution was the alcohol solution of 20wt.% phenolic resin prepolymer and 2.08g Orthoethyl silicate (TEOS), stirred for 2 hours to make TEOS undergo preliminary hydrolysis and polycondensation. The solution was transferred to a watch glass, left to evaporate at room temperature, and then placed in an oven at 100°C for 24 hours for further polymerization to obtain 1.75 g of F127 / polymer / silicon dioxide composite material. Reflux 1.75g ​​of F127 / polymer / silica composite material in 0.1M HCl ethanol solution at 78°C for 24 hours, filter and dry to obtain 0.85g of mesoporous polymer / silica composite material (wherein the polymer The mass percent content is 55wt.%, and the mass percent content of silicon is 45wt.%). This material has a pore diameter of 8.7nm and a p...

Embodiment 3

[0042] Example 3, 1.0g F127(EO 106 PO 70 EO 106 ) and 1.0g 0.2M hydrochloric acid solution were dissolved in 10.0g absolute ethanol, stirred to obtain a clear solution, adding 2.5g mass percent concentration in this solution was the alcohol solution of 20wt.% phenolic resin prepolymer and 2.08g Orthoethyl silicate (TEOS), stirred for 2 hours to make TEOS undergo preliminary hydrolysis and polycondensation. The solution was transferred to a watch glass, left to evaporate at room temperature, and then placed in an oven at 100°C for 24 hours for further polymerization to obtain 1.75 g of F127 / polymer / silicon dioxide composite material. The polymerized composite material was roasted at 350° C. for 2 hours under a nitrogen atmosphere to obtain 0.8 g of mesoporous polymer / silicon dioxide composite material (wherein the mass percentage of polymer was 52 wt.%, and the mass percentage of silicon Content is 48wt.%). This material has a pore diameter of 8.0nm and a pore volume of 0.8...

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Abstract

The present invention belongs to the field of material preparing technology. By means of sol-gel technology, organic high molecule and silicon source are led into a surfactant self-assembling reaction system so as to prepare high ordered mesoporous high molecule / silica and carbon / silica composite material and ordered mesoporous carbon material through organic-organic competition, inorganic-inorganic competition, organic-inorganic competition, cross-linking polymerization coordinate assembling and solvent volatizing self assembling. The prepared mesoporous carbon material has high order property, great specific surface area, great caliber and great porosity, as well as excellent electrochemical properties as super capacitor and cell material. It has also wide application foreground in catalysis, adsorption, biomolecule separation, and other fields.

Description

technical field [0001] The invention belongs to the technical field of material preparation, and specifically relates to a new method for preparing a novel mesoporous material by introducing an organic macromolecule and a silicon source into a surfactant self-assembly reaction system by using a sol-gel technology. Preparation of highly ordered mesoporous polymer / silica and carbon / silica composites through organic-organic, inorganic-inorganic and organic-inorganic competition, polymerization cross-linking and cooperative assembly, solvent volatilization self-assembly materials and mesoporous carbon materials with high specific surface area and large pore size. technical background [0002] Organic-inorganic composite materials not only have the characteristics of easy modification and high flexibility of organic materials, but at the same time, the addition of inorganic substances also improves their thermal stability, mechanical strength and physical and chemical properties....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B38/00C01B31/02
Inventor 赵东元刘瑞丽孟岩施益峰张福强顾栋万颖屠波
Owner FUDAN UNIV
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