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Method for preparing carbon material with high specific surface area by using metallic organic framework material as template

A metal-organic framework and high specific surface area technology, which is applied in the field of preparing high specific surface area carbon materials, can solve the problems of difficult structure control, narrow application range, and single pore size, and achieve the effect of easy operation, simple equipment, and low equipment requirements

Active Publication Date: 2010-11-17
深圳市普迈达科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This is a new material developed in the past two decades. With its tailorable and designable structure, it has brought revolutionary changes to the synthesis of porous materials. It overcomes the difficulty in controlling the structure of traditional porous materials, relatively single pore size, Disadvantages of narrow application range

Method used

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  • Method for preparing carbon material with high specific surface area by using metallic organic framework material as template
  • Method for preparing carbon material with high specific surface area by using metallic organic framework material as template
  • Method for preparing carbon material with high specific surface area by using metallic organic framework material as template

Examples

Experimental program
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Effect test

Embodiment 1

[0043] Using metal-organic framework material Y (BTC) as a template and organic furfuryl alcohol (FA) as a carbon source, high-quality porous carbon materials were prepared by high-temperature carbonization.

[0044] The metal element in Y (BTC) is yttrium (Y), and the coordinated organic compound is trimesic acid (BTC). The preparation method of this substance is to put yttrium nitrate and trimesic acid in the ratio of 1:1 Into ethanol solution, crystallization at 85°C for 12 hours. Soak crystal Y (BTC) in methanol, the mass ratio of crystal to methanol is 1:5, stir at room temperature for 24 hours, filter, remove methanol, repeat the above soaking, stirring, and filtration process 3 times, and put the final product at 60°C Let dry for 12 hours. The obtained product was heated to 150°C under vacuum, and kept at this temperature for 12 hours, then cooled down to room temperature naturally, added carbon source furfuryl alcohol (FA), stopped vacuuming, and allowed furfuryl alco...

Embodiment 2

[0046] The main method is the same as that in Example 1, except that the carbonization process of the carbon source / template composite has a different heating program: heating from room temperature to 80°C at a heating rate of 2°C / min, and keeping at 80°C for 24 hours, and heating at 2°C Heating from 80°C to 150°C at a heating rate of 2°C / min, keeping at 150°C for 12 hours, heating at a heating rate of 2°C / min from 150°C to 300°C, and keeping at 300°C for 4 hours, then Heating from 300°C to 800°C at a heating rate of 5°C / min, and maintaining it for 6 hours, and then naturally cooling to room temperature. The specific surface area of ​​the carbon material obtained in this example is 1500m 2 / g.

Embodiment 3

[0048] The main method is the same as that in Example 1, except that the carbonization process of the carbon source / template composite has a different heating program: heating from room temperature to 80°C at a heating rate of 2°C / min, and keeping at 80°C for 24 hours, and heating at 2°C Heating from 80°C to 150°C at a heating rate of 2°C / min, keeping at 150°C for 12 hours, heating at a heating rate of 2°C / min from 150°C to 300°C, and keeping at 300°C for 4 hours, then Heated from 300°C to 1000°C at a heating rate of 5°C / min, and kept for 5 hours, and then naturally cooled to room temperature. The specific surface area of ​​the carbon material obtained in this example is 1800m 2 / g.

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Abstract

The invention relates to a method for preparing a carbon material with high specific surface area by using a metallic organic framework material as a template. The method comprises the following steps of: 1, synthesizing the metallic organic framework material template; 2, pre-treating the metallic organic framework material template; 3, introducing a carbon source into the metallic organic framework material template; 4, carbonizing the carbon source at a high temperature; and 5, removing the template. The method for preparing the carbon material with high specific surface area prepares the carbon material by adopting the metallic organic framework material as the template; the prepared carbon material has regular pore structure, uniform aperture distribution and good application value on the aspects of gas adsorption storage, industrial waste separation and the like; and the method has simple and feasible preparation process and good safety.

Description

technical field [0001] The invention relates to the technical field of preparation of porous carbon materials, in particular to a method for preparing high specific surface area carbon materials by using metal organic framework materials with high thermal stability as templates and metal organic framework materials as templates. Background technique [0002] Charcoal materials often appear in people's daily life, and they are usually formed by carbonization of animal bones, trees, coal, sugar and other biological or organic materials. [0003] Due to their unique chemical stability, thermal stability, etc., carbon materials have shown excellent application value in the fields of electricity, mechanics, chemistry, etc., and have attracted great attention. In recent years, with the in-depth study of carbon materials by scientists, they have gained a better understanding and discovered more potential applications. Among them, porous carbon materials have extremely important va...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B31/08
Inventor 朱广山裘式纶贲腾薛铭张凤
Owner 深圳市普迈达科技有限公司
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