a high co 2 Preparation method of nitrogen-rich hierarchical porous carbon with capture capacity and high specific capacitance

A technology with high specific capacitance and hierarchical pores, which is applied in the field of preparation of hierarchical porous carbons, can solve the problems of single performance of hierarchical porous carbons and failure to have high CO at the same time, and achieve the effect of mild preparation conditions and easy and uniform mixing

Active Publication Date: 2016-09-21
SHANXI INST OF COAL CHEM CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The performances of the above-mentioned hierarchical porous carbons are all single, and none of them can simultaneously have high CO 2 Capture capacity and high specific capacitance performance

Method used

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  • a high co <sub>2</sub> Preparation method of nitrogen-rich hierarchical porous carbon with capture capacity and high specific capacitance
  • a high co <sub>2</sub> Preparation method of nitrogen-rich hierarchical porous carbon with capture capacity and high specific capacitance
  • a high co <sub>2</sub> Preparation method of nitrogen-rich hierarchical porous carbon with capture capacity and high specific capacitance

Examples

Experimental program
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Effect test

Embodiment 1

[0026] At room temperature, add 0.1 mol of cystine and 2.0 mol of formaldehyde solution with a mass fraction of 37 to 40% into a three-necked flask equipped with a condenser, a thermometer and a stirrer, and adjust the pH value of the solution with 0.5M triethanolamine solution 8.0, heated up to 90°C and stirred for 0.5h, then cooled naturally to room temperature to obtain solution A; dissolved 0.005mol of F127 and 0.5mol of m-cyanophenol in absolute ethanol, stirred in a water bath at 40°C for 2h, recorded It is solution B; add solution A to solution B and transfer to a three-necked flask, mix and stir at room temperature for 0.5h, keep stirring and react at reflux temperature for 5h, and then pour the solution into the dispersed 1.19g graphene oxide aqueous solution 0.1 mg / mL polyvinylpyrrolidone was added, stirred thoroughly for 1 h, and then ultrasonically dispersed for 2 h to obtain a uniformly dispersed graphene oxide composite. The graphene oxide-containing composite wa...

Embodiment 2

[0030] At room temperature, add 0.2 mol of melamine and 2.4 mol of formaldehyde solution with a mass fraction of 37 to 40% into a three-necked flask with a condenser, a thermometer and a stirrer, and adjust the pH of the solution to 9.0 with a 0.5M triethanolamine solution , raised the temperature to 50°C and stirred for 2 hours, then cooled naturally to room temperature to obtain solution A; dissolved 0.008mol of P123 and 0.4mol of 1,6-dihydroxynaphthalene in absolute ethanol, stirred in a water bath at 60°C for 1h, recorded It is solution B; add solution A to solution B and transfer to a three-necked flask, mix and stir at room temperature for 1 hour, keep stirring and react at reflux temperature for 2 hours, and then pour the solution into 1.29 g of dispersed graphene oxide aqueous solution , and 0.1 mg / mL polyvinyl pyrrolidone was added, stirred thoroughly for 2 hours and then ultrasonically dispersed for 6 hours to obtain a uniformly dispersed graphene oxide composite. Th...

Embodiment 3

[0034]At room temperature, add 0.2 mol of melamine and 1.5 mol of formaldehyde solution with a mass fraction of 37 to 40% into a three-necked flask with a condenser, a thermometer and a stirrer, and adjust the pH of the solution to 8.5 with a 0.5M triethanolamine solution , heated to 65°C and stirred for 1 hour, then cooled naturally to room temperature to obtain solution A; dissolved 0.004mol of P123 and 0.5mol of m-cyanophenol in absolute ethanol, stirred in a water bath at 50°C for 1.5h, and recorded as solution B; Add solution A to solution B and transfer to a three-necked flask, mix and stir at room temperature for 0.75h, then insulate and stir at reflux temperature for 3h, then pour the solution into a dispersed 0.42g graphene oxide aqueous solution, And add 0.1mg / mL polyvinylpyrrolidone, stir thoroughly for 1.5h, then ultrasonically disperse for 4h to obtain a uniformly dispersed graphene oxide composite. The graphene oxide-containing composite was transferred to an ope...

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Abstract

A preparation method of level hole charcoal rich in nitrogen with a high CO2 yield and specific capacitance comprises the following steps: blending an amine compound with a formaldehyde solution, and adjusting the pH value of the solution to be 8.0-9.0 with a triethanolamine solution to obtain a solution A; dissolving F127 or P123 and a phenolic compound in absolute ethyl alcohol, and marking a solution B; adding the solution A into the solution B, stirring for reaction at reflux temperature; pouring the mixed solution into a graphene oxide aqueous solution, adding povidone, carrying out ultrasonic dispersion to obtain a graphene oxide compound; after the solvent of the graphene oxide compound volatilizes, solidifying, charring, and activating to obtain the level hole charcoal rich in nitrogen. The level hole charcoal rich in nitrogen has the advantages of being high in both the CO2 yield and the specific capacitance.

Description

technical field [0001] The invention belongs to a preparation method of hierarchical porous carbon, in particular, it provides a carbon with high CO 2 A method for the preparation of hierarchically porous carbons with high capture capacity and high specific capacitance. Background technique [0002] If porous carbon has multiple functions at the same time, especially for the increasingly serious environmental pollution in the world, its popularity in the market is self-evident. [0003] The patent invention with application number CN200910193797.0 "A polystyrene-based hierarchical porous carbon material and its preparation method and application" discloses a polystyrene-based hierarchical porous carbon material and its preparation method. The method uses linear polystyrene as a raw material, anhydrous aluminum trichloride as a catalyst, anhydrous carbon tetrachloride as a solvent and a crosslinking agent, and obtains polystyrene through Friedel-Crafts crosslinking reaction,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B31/02
Inventor 李开喜万柳
Owner SHANXI INST OF COAL CHEM CHINESE ACAD OF SCI
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