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Method for preparing ordered mesoporous carbon by taking industrial phenolic resin as raw material

A technology of industrial phenolic resin and mesoporous carbon, which is applied in the preparation/purification of carbon, etc., can solve the problems that the distribution of pore size is difficult to control, it is difficult to form a good mesoporous structure, and the output of ordered mesoporous carbon is low. Achieve the effect of being conducive to commercial mass production, good application potential and low price

Active Publication Date: 2014-05-21
HOHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The traditional synthesis method of mesoporous carbon materials can only produce random porous materials, the distribution of pore size is difficult to control, and it is even more difficult to form a good mesoporous structure
In recent years, many significant advances have been made in the synthesis of porous carbon materials. For example, porous carbon materials with high specific surface area and ordered mesoporous structure have been prepared by self-assembly method, and can be obtained by using different templates or controlling different conditions. The required mesoporous carbon material, however, the existing method of preparing ordered mesoporous carbon has high requirements for raw materials and is expensive, which directly leads to low yield and high price of ordered mesoporous carbon

Method used

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  • Method for preparing ordered mesoporous carbon by taking industrial phenolic resin as raw material
  • Method for preparing ordered mesoporous carbon by taking industrial phenolic resin as raw material
  • Method for preparing ordered mesoporous carbon by taking industrial phenolic resin as raw material

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Experimental program
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Effect test

Embodiment 1

[0026] Take an appropriate amount of industrial phenolic resin with a viscosity of 1000-1400cp at 25°C and put it in a rotary evaporator, and after rotary evaporation at a vacuum of 0.1Mpa and a temperature of 50°C for 5 hours, dissolve it in absolute ethanol to form a 50wt% solution ; Dissolve 1g of F127 in 10g of absolute ethanol, slowly add 4g of 50wt% phenolic resin solution under magnetic stirring, continue to stir for 30min until clarification, and pour the resulting homogeneous solution into a disk; Thermally polymerize in a ℃ drying oven for 24 hours, scrape off and grind into powder; spread the product on a corundum boat, put it in a tube furnace, and raise the temperature to 350°C at a rate of 1°C / min under a nitrogen atmosphere. stay for 4 hours at low temperature, then raise the temperature to 700°C at a rate of 5°C / min, stay at 700°C for 2 hours and then cool down to room temperature to obtain ordered mesoporous carbon.

Embodiment 2

[0028] Take an appropriate amount of industrial phenolic resin with a viscosity of 4700-5300cp at 25°C and put it in a rotary evaporator, and after rotary evaporation at a vacuum of 0.3Mpa and a temperature of 20°C for 2 hours, dissolve it in absolute ethanol to form a 30wt% solution ; Dissolve 1g of F127 in 20g of absolute ethanol, slowly add 5g of 30wt% phenolic resin solution under magnetic stirring, continue to stir for 30min until clarification, and pour the resulting homogeneous solution into the disk; Thermally polymerize in a drying oven at ℃ for 12 hours, scrape off and grind into powder; spread the product into a corundum boat, put it in a tube furnace, and raise the temperature to 450°C at a rate of 1°C / min under a nitrogen atmosphere. stay for 5 hours at low temperature, then raise the temperature to 700°C at a rate of 5°C / min, stay at 700°C for 2 hours and then cool down to room temperature to obtain ordered mesoporous carbon.

Embodiment 3

[0030] Take an appropriate amount of industrial phenolic resin with a viscosity of 9500-11500cp at 25°C and put it in a rotary evaporator, and then dissolve it in absolute ethanol to form a 20wt% solution after rotary evaporation at a vacuum of 0.3Mpa and a temperature of 50°C for 3 hours ; Dissolve 1g of F127 in 10g of absolute ethanol, slowly add 5g of 20wt% phenolic resin solution under magnetic stirring, continue to stir for 30min until clarification, and pour the resulting homogeneous solution into the disk; after volatilizing at room temperature for 10h, put Thermally polymerize in a drying oven at ℃ for 12 hours, scrape off and grind into powder; spread the product into a corundum boat, put it in a tube furnace, and raise the temperature to 450°C at a rate of 1°C / min under a nitrogen atmosphere. stay for 5 hours at low temperature, then raise the temperature to 700°C at a rate of 2°C / min, stay at 700°C for 2 hours and then cool down to room temperature to obtain ordered ...

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Abstract

The invention discloses a method for preparing ordered mesoporous carbon by taking industrial phenolic resin as a raw material, which is characterized by comprising the following steps of performing reduced-pressure evaporation on the industrial phenolic resin to remove water and formaldehyde, and dissolving in absolute ethyl alcohol to obtain an industrial phenolic resin-ethyl alcohol solution; adding a template agent into the industrial phenolic resin-ethyl alcohol solution, and stirring till clarification; naturally volatilizing the mixed solution in the step (2) for 4-10 hours at room temperature, performing a thermal polymerization reaction for 12-48 hours in an oven at 90-110 DEG C, and grinding; under nitrogen protection, calcining the product ground in the step (3) for 3-6 hours at a low temperature of 300-450 DEG C to remove the template agent; carbonizing at a high temperature of 500-900 DEG C to obtain ordered mesoporous carbon. The method disclosed by the invention has the advantages of simple preparation process, low cost, controllable product and stable and reliable product, and is suitable for industrial production.

Description

technical field [0001] The invention relates to a method for preparing ordered mesoporous carbon by using industrial phenolic resin as a raw material. The phenolic resin-based mesoporous carbon is synthesized by a self-assembly method using the cheap industrial phenolic resin as a raw material. Background technique [0002] Mesoporous carbon materials have some excellent properties, such as highly ordered pore structure, single pore size distribution, large specific surface area, good thermal stability and hydrothermal stability. Therefore, in catalysis, adsorption purification, electrochemical It has great application potential in fields such as energy storage and energy storage. In recent years, the preparation and application of mesoporous carbon materials have attracted extensive attention from researchers in the material field, and have become one of the hot spots in international research. [0003] The traditional synthesis method of mesoporous carbon materials can on...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B31/02C01B32/05
Inventor 祝建中曹阳陈胜鲁丁莹蒋胜涛
Owner HOHAI UNIV