Mesoporous-macroporous carbon production method

The technology of macroporous carbon and pore-forming agent is applied in the field of preparation of medium and macroporous carbon, and achieves the effects of simple method, complete carbonization and improved electrical conductivity

Inactive Publication Date: 2014-01-01
NO 63971 TROOPS PLA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method still needs to use strong acids...

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Take 10g of novolac resin and 0.1g of hexamethylenetetramine and put them together into a ball mill jar, and ball mill at room temperature for 60min at a speed of 500 rpm to completely and evenly mix the novolak resin and hexamethylenetetramine . The mixture was placed in a nickel boat, placed in a muffle furnace (air atmosphere), heated to 160°C at a rate of 10°C / min and cured for 30 minutes to obtain a cured material. Preliminarily crush the cured material and grind it with a ball mill for 12 hours to obtain a fine powder cured product with a particle size of about 10 microns. Take 1g of polyvinyl butyral (with a particle size of about 50 microns), activated carbon powder (with a particle size of about 50 microns, and a specific surface area of ​​800m 2 / g, conductivity about 1S / cm) 1g and pulverized 10g solidified material ball milled for 60min, take the mixed powder and press it into a 0.5mm sheet with a pressure of 50MPa. Put the prefabricated sheet into a tube f...

Embodiment 2

[0022] Take 5g of novolac resin and 5g of epoxy resin, dissolve them in 10ml of absolute ethanol, add 5ml of absolute ethanol in which 0.3g of hexamethylenetetramine is dissolved, and mix completely and evenly. The mixture was evaporated at about 100°C to remove ethanol, then placed in a nickel boat, placed in a muffle furnace (air atmosphere), and cured at 290°C for 120 minutes to obtain a cured material. Preliminarily crush the cured material and grind it with a ball mill for 24 hours to obtain a fine powder cured product with a particle size of about 5-8 microns. Take 10g of polyvinyl butyral (with a particle size of about 50 microns) and pulverize it by ball milling for about 10 hours until the particle size is reduced to about 10 microns; Surface area 800m 2 / g, conductivity about 1S / cm) 10g and pulverized 10g solidified material were ball milled and mixed for 60min, and the mixed powder was pressed into a 1.0mm sheet with a pressure of 50MPa. Put the prefabricated shee...

Embodiment 3

[0024] Take 10g of novolac resin and 0.1g of hexamethylenetetramine and put them together into a ball mill jar, and ball mill at room temperature for 60min at a speed of 500 rpm to completely and evenly mix the novolak resin and hexamethylenetetramine . The mixture was placed in a nickel boat, placed in a muffle furnace (air atmosphere), heated to 160°C at a rate of 10°C / min and cured for 30 minutes to obtain a cured material. Preliminarily crush the cured material and grind it with a ball mill for 5 hours to obtain a fine powder cured product with a particle size of about 30 microns. Take 5g of polyvinyl butyral (with a particle size of about 50 microns), carbon nanotubes (with a particle size of about 10 microns, and a specific surface area of ​​100m 2 / g, conductivity about 200S / cm) 1g, mixed with crushed 10g cured material by ball mill for 60min, took the mixed powder and pressed it into 1.0mm flakes with a pressure of 20MPa. Put the prefabricated sheet into a tube furna...

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Abstract

The invention belongs to the field of chemical engineering and industry, and particularly relates to a mesoporous-macroporous carbon production method. The production method comprises: completely mixing a phenol formaldehyde resin, an epoxy resin and the like or a mixture thereof, and a curing agent according to a certain weight ratio, carrying out heating curing, adding polyvinyl alcohol and the like as pore forming agents and adding graphite powder and the like as support agents after the cured material is crushed, completely mixing, pressing to form a preform, and carrying out high temperature carbonization under the protection of gas to obtain the mesoporous-macroporous carbon. The mesoporous-macroporous carbon prepared by using the production method has advantages of simple preparation method, easy pore size control and the like, wherein the pore size of the mesoporous-macroporous carbon can be adjusted within 50 nm-10 mum, has a specific surface area of 100-1000 m<2>/g, and can be used in electrode materials of supercapacitors, electrode materials of lithium ion batteries, electrode materials of capacitance method desalination devices, blood purification, catalyst carriers, water treatments, gas purification, solvent recovery and the like.

Description

technical field [0001] The invention relates to a method for preparing a carbon material and its application, in particular to a method for preparing a medium-to-macroporous carbon. 2 / g specific surface area, good conductivity, can be used as a catalyst carrier, and can also be used as an electrode material for electrochemical capacitors and lithium-ion batteries. technical background [0002] Porous carbon materials refer to carbon materials with different pore structures, and the pore size has a wide range, which can be adjusted by different technical means. Due to the characteristics of developed pores, high specific surface area, high pore volume, and adjustable pore size within a certain range, porous carbon materials have been widely used as an adsorption material in water purification, gas separation, solvent recovery, decolorization and other fields. It can be used as catalyst carrier, lithium ion battery, electrode material of supercapacitor, etc. The preparation...

Claims

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Application Information

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IPC IPC(8): C01B31/02C01B32/05
Inventor 程杰陈冬文越华徐艳曹高萍杨裕生
Owner NO 63971 TROOPS PLA
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