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Preparation method of ordered mesoporous carbon material with high specific surface area by using metal organic skeleton

A technology of metal-organic framework and high specific surface area, which is applied in the preparation of solid mesoporous carbon materials and the preparation of ordered mesoporous carbon materials with high specific surface area, which can solve the problems of limited selection of precursor molecules and achieve low cost and mild conditions , the effect of developed porosity

Inactive Publication Date: 2015-03-18
SUZHOU OST ADVANCED MATERIALS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method has very limited selection of precursor molecules, and only phenolic resins and their derivatives have been reported.

Method used

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  • Preparation method of ordered mesoporous carbon material with high specific surface area by using metal organic skeleton
  • Preparation method of ordered mesoporous carbon material with high specific surface area by using metal organic skeleton
  • Preparation method of ordered mesoporous carbon material with high specific surface area by using metal organic skeleton

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Weigh 6.0g Zn(NO 3 ) 2 ·6H 2 Dissolve O (20mmol) and 1.67g terephthalic acid (10mmol) in 50ml DMF, stir to form a homogeneous solution, add 11.0ml triethylamine dropwise, then stir at room temperature for 1h, and slowly wash the formed solid with 25-50ml DMF , then with about 75ml of CHCl 3 Exchange for 24h, and finally vacuum dry at 80°C for 5h. then in N 2 In the atmosphere, the temperature was raised to 950°C at a rate of 5°C / min, and then kept at this temperature for 2 hours to obtain a mesoporous carbon material with a specific surface area of ​​2726m 2 / g, the pore diameter is 4.2nm, and the pore volume is 2.10cm 3 / g.

Embodiment 2

[0026] Weigh 5mmol of zinc acetate dihydrate and 10mmol of terephthalic acid and dissolve them in 50ml of DEF, stir to form a homogeneous solution, add 2.7ml of triethylamine dropwise, then stir at room temperature for 0.5h, and slowly wash the formed solid with 25-50ml of DEF , and then with about 65ml of CHCl 3 Exchange for 20h, and finally vacuum dry at 80°C for 4h. then in N 2 In the atmosphere, the temperature was raised to 930° C. at a rate of 1° C. / min, and then kept at this temperature for 24 hours to obtain a mesoporous carbon material.

Embodiment 3

[0028] Weigh 100mmol of zinc chloride and 10mmol of terephthalic acid and dissolve them in 200ml of DMAC, stir to form a homogeneous solution, add 55.0ml of triethylamine dropwise, then stir at room temperature for 12h, and slowly wash the formed solid with 100-200ml of DMAC, then With about 90ml of CHCl 3 Exchange for 30h, and finally vacuum dry at 80°C for 6h. then in N 2 In the atmosphere, the temperature was raised to 980° C. at a rate of 15° C. / min, and then kept at this temperature for 1 hour to obtain a mesoporous carbon material.

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Abstract

The invention discloses a preparation method of an ordered mesoporous carbon material with high specific surface area by using metal organic skeleton. Zinc salt and terephthalic acid as raw materials react under room temperature through simple stirring, solvent exchange and vacuum drying to obtain a metal organic skeleton material MOF-5 with cubic shape; and then metal organic skeleton material MOF-5 as a carbon source is directly carbonized at high temperature to obtain ordered mesoporous carbon material with high surface area and developed hole structure. The preparation method has the advantages of economic steps, low cost, simple operation process and mild conditions; the target product has narrow pore size distribution, large specific surface area and amorphous and graphitic carbon structure, can be used suitable as an adsorbent, a catalyst carrier, an electrode material and hard template for synthesis of other mesoporous materials, and has certain market application prospect.

Description

technical field [0001] The invention belongs to the technical field of composite materials, and relates to a method for preparing a solid mesoporous carbon material, in particular to a method for preparing a high specific surface area ordered mesoporous carbon material using a metal-organic framework (MOF-5) as a carbon source . Background technique [0002] Mesoporous carbon is a new type of non-silicon-based mesoporous material emerging in recent years, and ordered mesoporous carbon presents a substitute for its high specific surface area, narrow pore size distribution, and excellent chemical and thermal stability. The trend of traditional carbon materials, and its complementarity with oxide materials in many aspects, makes it an important research object in the fields of surface structure and heterogeneous catalysis, and is widely used in atmospheric and water environment purification, adsorption, separation, catalyst carrier , hydrogen storage, electrode materials, nano...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B31/02
Inventor 李福伟杨英夏春谷高广
Owner SUZHOU OST ADVANCED MATERIALS
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