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Method of synthesizing mesoporous carbon material

A synthesis method and technology of mesoporous carbon, applied in the field of inorganic porous materials, can solve the problems of strong toxic pollution, long time consumption, cumbersome process of hard template replication, etc., and achieve the effect of good order and environmental friendliness.

Inactive Publication Date: 2007-08-08
EAST CHINA NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this process takes a long time, is difficult to effectively control, and needs to be carried out under the conditions of acid or metal catalysis, which has caused adverse effects on the environment.
[JunS, JooSH, RyooR, etal.J.Am.Chem.Soc., 2000, 122: 10712-10713] so the hard template replication process is very cumbersome, highly toxic and polluting, and the cost is very high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] The preparation conditions of silicon dioxide / template composite material are as follows: 50% cationic alkyl glycoside surfactant (CAPG-08143), water, 1M ammonia water, orthosilicate ethyl ester are 0.9: 20: 1.1 by mass ratio: 2 mixed, stirred at 19°C, stirred for 10 hours, filtered, rinsed with deionized water, and dried at 80°C to obtain a white powder product for future use.

Embodiment 2

[0016] Preparation of mesoporous carbon material Mix the composite material of silica / template, concentrated sulfuric acid, and water in a mass ratio of 1:0.07:5, stir evenly and heat-treat at 80°C for 10 hours to obtain a taupe powder. Calcined at 800°C in nitrogen for 2 hours, placed the calcined powder in 20% HF acid solution and stirred for 4 hours, washed with deionized water, centrifuged, and dried at 80°C to obtain a mesoporous carbon material with a d value of 8.8nm.

Embodiment 3

[0018] Preparation of mesoporous carbon material Mix the composite material of silica / template agent, concentrated sulfuric acid, and water in a mass ratio of 1:0.1:5, stir evenly and heat-treat at 100°C for 10 hours to obtain a taupe powder, which is placed in Calcined at 900°C for 2 hours in nitrogen, the calcined powder was placed in 20% HF acid solution and stirred for 4 hours, washed with deionized water, centrifuged, and dried at 80°C to obtain a mesoporous carbon material with a d value of 8.2nm.

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PUM

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Abstract

The invention discloses a synthesizing method of dielectric carbon material through hard moulding method, which is characterized by the following: sintering the composition of silica / molder or saccharose directly; removing silica to obtain dielectric carbon; shortening the synthesizing time with high sequence; fitting for manufacturing.

Description

technical field [0001] The invention relates to a method for one-step synthesis of mesoporous carbon materials by a hard template method, belonging to the technical field of inorganic porous materials. Background technique [0002] Ordered mesoporous carbon materials are a new class of materials with broad application prospects. Mesoporous carbon materials can be used as catalyst supports for fuel cells [Literature: Chai, G.; Yoon, S.; Yu, J.; Choi, J.; Sung, Y. Ordered porous carbons with tunable pore sizes as catalyst supports in direct Methanol fuel cell.J.Phys.Chem.B 2004, 108, 7074-7079.], electrode materials for supercapacitors, separation and purification, adsorption and desorption of macromolecules [Documents: Han, S.; Sohn, K.; Hyeon , T.Fabrication of new nanoporouscarbons through silica templates and their application to the absorption of bulky dyes. Chem.Mater.2000, 12, 3337-3341.], direct desulfurization of petroleum refining, etc. [0003] At present, there a...

Claims

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Application Information

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IPC IPC(8): C01B31/02C01B31/08
Inventor 单永奎王海文孔爱国李疆
Owner EAST CHINA NORMAL UNIVERSITY
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