Porous carbon material, preparation method and application thereof

A technology of porous carbon materials and carbonization process, applied in the field of carbon materials, can solve problems such as collapse, achieve uniform distribution of pore size, large specific surface area and porosity, and increase the effect of specific surface area

Inactive Publication Date: 2017-12-22
CHINA BUILDING MATERIALS ACAD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The main purpose of the present invention is to provide a porous carbon material and its preparation method and application. The technical problem to be solved is to solve the problem of collapse in the carbonization process, so that the prepared porous carbon material can be used under the same conditions. , get larger specific surface area and porosity, and then prepare more excellent hydrogen storage, loading phase change materials and carbon materials with higher catalytic activity

Method used

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  • Porous carbon material, preparation method and application thereof
  • Porous carbon material, preparation method and application thereof
  • Porous carbon material, preparation method and application thereof

Examples

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preparation example Construction

[0035] The invention provides a preparation method of a porous carbon material.

[0036] The preparation method of the porous carbon material provided by the present invention includes the preparation of the precursor: dissolving the metal salt and the organic acid in the organic solvent, adding the additive, stirring and centrifuging to obtain the precursor, the metal salt, the organic acid, The molar ratio of the additives is 1-10:1-10:0-100; the preparation of the porous carbon material: after mixing the precursor and the proppant, carbonize it under the protection of an inert gas, wash and dry it to obtain The porous carbon material, wherein the proppant includes inorganic salts.

[0037] In the preparation method of the porous carbon material provided by the present invention, a proppant is added during the carbonization process of the precursor, and the proppant is melted at a certain temperature, and enters the pores formed during the carbonization process, and acts as ...

Embodiment 1

[0054] This embodiment provides a method for preparing a porous carbon material and the prepared porous carbon material.

[0055] Weigh 3.33g (18.4mmol) of 2-aminoterephthalic acid and 14.42g (48.5mmol) of zinc nitrate hexahydrate and dissolve in DMF (360mL), add 20mL (143.5mmol) of triethylamine, and stir at room temperature for 30 minutes . Centrifuge and wash the resulting solid with N,N-dimethylformamide (DMF) and chloroform (CHCl 3 ) were washed three times, and finally dried in an oven at 80° C. for 24 hours to obtain a light yellow IRMOF-3 material.

[0056] After mixing 3 grams of Zn elemental substance and 6 grams of NaCl with the IRMOF-3 material obtained above, put them into a tube furnace, N 2 Under protection, the temperature was raised to 1000 °C at a rate of 5 °C / min, and after 6 hours of heat preservation, it was naturally cooled to room temperature, and the obtained porous carbon material was named 3C-1000 (NaCl).

Embodiment 2

[0068] This embodiment provides a method for preparing a porous carbon material and the prepared porous carbon material.

[0069] The proppant used in this example is 9 grams of Zn simple substance, and other preparation processes are the same or similar to Example 1.

[0070] The physical properties of the porous carbon material prepared in this example are the same as those in Example 1.

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Abstract

The invention provides a porous carbon material, a preparation method and application thereof. The preparation method comprises: preparation of a precursor: dissolving a metal salt and organic acid in an organic solvent, adding an additive, then conducting stirring and centrifugation to obtain a precursor, wherein the metal salt, organic acid and organic solvent are in a mole ratio of 1-10:1-10:0-100; and preparation of the porous carbon material: mixing the precursor with a support agent, performing carbonization under the protection of inert gas, and conducting washing and drying to obtain the porous carbon material, wherein the support agent includes an inorganic salt. The preparation method of the porous carbon material provided by the invention avoids the hole collapse phenomenon during carbonization, and increases the specific surface area and porosity of the porous carbon material.

Description

technical field [0001] The invention relates to a carbon material, in particular to a porous carbon material and its preparation method and application. Background technique [0002] Porous carbon materials have a wide pore size distribution, including micropores, mesopores and macropores, and have the advantages of extremely high chemical stability, excellent electrical conductivity and low price, making them widely used in gas separation, water purification, chromatography, etc. Analysis, catalysis and catalyst support, energy storage, electrochemistry and other fields. [0003] At present, porous carbon materials mainly control the pore size of porous carbon materials after carbonization by designing the structure of organic precursors. However, the collapse of organic matter is unavoidable during the carbonization process. And in order to reduce the residue of impurities in porous carbon materials and obtain larger pore size and specific surface area, carbonization is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B32/05
CPCC01P2002/72C01P2004/03C01P2006/12C01P2006/14C01P2006/17
Inventor 陶柳实张世超李娜陈玉峰胡利明孙浩然孙现凯方凯闫达琛赵洋吴蔚
Owner CHINA BUILDING MATERIALS ACAD
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