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Preparation method for phenolic-resin-based porous carbon based on polyaniline modification

A phenolic resin and polyaniline technology, which is applied in the field of preparation of porous carbon materials, can solve the problems of low specific surface area of ​​pure phenolic resin activated carbon materials, poor polyaniline dispersibility, uneven pore size distribution, etc. Dispersibility and the effect of improving the specific surface area

Inactive Publication Date: 2017-08-11
成都博美实润科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, polyaniline has poor dispersion and is easy to aggregate in the resin matrix. Pure phenolic resin activated carbon materials have problems such as low specific surface area and uneven pore size distribution, which leads to the supercapacitor made of the two composites cannot fully exert the electrical properties of each component. Chemical properties, resulting in specific capacitance not as high as expected

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Step 1: Dissolve 100 parts of phenolic resin and 5 parts of polyethylene glycol in anhydrous methanol, mix them uniformly, and ultrasonically disperse them for 1 hour, then mix the two, and ultrasonically disperse them again for 1 hour until the solution is clear;

[0021] Step 2: Pour the mixture obtained in Step 1 into a petri dish, and put it in an oven at 50°C to volatilize the solvent for 45 minutes, then put it into a box-type resistance furnace, and cure it at a constant temperature of 140°C for 2 hours, and cool to room temperature after curing , crushed;

[0022] Step 3, put the sample obtained in step 2 into a ceramic crucible, weigh it, put it into a box-type resistance furnace and heat it up to 900 ° C, and keep it warm for 1 hour to carry out buried carbonization, take out the carbonized product and weigh it, crush it with a ball mill and pack the powder into Put it in a sealed bag for later use;

[0023] Step 4, add aniline monomer, organic activated mont...

Embodiment 2

[0028] Step 1: Dissolve 100 parts of phenolic resin and 35 parts of polyvinyl butyral in anhydrous methanol, mix them evenly, and ultrasonically disperse them for 1 hour, then mix the two, and ultrasonically disperse them again for 1 hour until the solution is clear;

[0029] Step 2: Pour the mixture obtained in Step 1 into a petri dish, and put it in an oven at 50°C to volatilize the solvent for 45 minutes, then put it into a box-type resistance furnace, and solidify at a constant temperature of 200°C for 2 hours, and cool to room temperature after curing , crushed;

[0030] Step 3, put the sample obtained in step 2 into a ceramic crucible, weigh it, put it into a box-type resistance furnace and heat it up to 900 ° C, and keep it warm for 1 hour to carry out buried carbonization, take out the carbonized product and weigh it, crush it with a ball mill and pack the powder into Put it in a sealed bag for later use;

[0031] Step 4, add aniline monomer, organic activated montmor...

Embodiment 3

[0036] Step 1: Dissolve 100 parts of phenolic resin and 5 parts of polyethylene glycol in anhydrous methanol, mix them uniformly, and ultrasonically disperse them for 1 hour, then mix the two, and ultrasonically disperse them again for 1 hour until the solution is clear;

[0037] Step 2: Pour the mixture obtained in step 1 into a petri dish, and put it in an oven at 50°C to volatilize the solvent for 45 minutes, then put it into a box-type resistance furnace, and solidify at a constant temperature of 160°C for 2 hours, and cool to room temperature after curing , crushed;

[0038] Step 3, put the sample obtained in step 2 into a ceramic crucible, weigh it, put it into a box-type resistance furnace and heat it up to 900 ° C, and keep it warm for 1 hour to carry out buried carbonization, take out the carbonized product and weigh it, crush it with a ball mill and pack the powder into Put it in a sealed bag for later use;

[0039] Step 4, add aniline monomer, organic activated mon...

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Abstract

The invention discloses a preparation method for phenolic-resin-based porous carbon based on polyaniline modification. The preparation method comprises the following steps: adding a pore former to the phenolic resin and mixing, smashing after solidifying in 140-200 DEG C, carbonizing in 900 DEG C, bagging for future use after ball-milling; adding an aniline monomer, organic activated montmorillonite, and protonic acid solution to the obtained product, and stirring for 5-8 h in 40-60 DEG C by 600-1000 r / min of the speed; and dissolving an oxidant in the protonic acid in 0-20 DEG C, adding to the obtained suspension system, reacting for 6-8 h under the nitrogen protection, filtering, washing, and drying to obtain a target product. Compared with the simple compound of the polyaniline and the phenolic resin in the prior art, the prepared phenolic-resin-based porous carbon based on the polyaniline modification is capable of improving the specific capacitance as a supercapacitor because the dispersity of the polyaniline is better and the specific surface area is larger.

Description

technical field [0001] The invention relates to a method for preparing a porous carbon material, in particular to a method for preparing a polyaniline-modified phenolic resin-based porous carbon. Background technique [0002] Supercapacitor electrode materials are divided into two categories, one is supercapacitor materials with electric double layer energy storage properties, such materials include activated carbon, carbon fiber, carbon nanotubes and graphene sheets and other carbon materials, such materials have 10 to 200F The specific capacitance per g has a long charge and discharge cycle life, which can reach more than 10,000 times, but the overall specific capacitance is not high; the other type is a pseudocapacitor material with redox characteristics, which includes inorganic substances such as oxidation Ruthenium, manganese oxide, tin oxide, iron oxide and other materials, as well as conductive polymer materials, such as polyaniline, polythiophene, polypyrrole, etc.,...

Claims

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Application Information

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IPC IPC(8): C01B32/05
CPCC01P2006/12C01P2006/40
Inventor 邱鸿浩
Owner 成都博美实润科技有限公司
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