Ellipsoidal nitrogen-boron-phosphorus-doped mesoporous carbon and preparation method and application thereof

An ellipsoidal, mesoporous carbon technology, applied in the field of electrochemistry, can solve problems such as poor electrochemical performance, and achieve the effects of good electrochemical performance, difficult pores, and easy replication.

Inactive Publication Date: 2015-11-18
SHANGHAI INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] Aiming at the above-mentioned technical problems in the prior art, the present invention provides an ellipsoidal nitrogen-boron-phosphorous-doped mesoporous carbon material and its preparation method and application. Carbon material and its preparation method and application solve the technical problem of poor electrochemical performance of doped mesoporous carbon material in the prior art

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  • Ellipsoidal nitrogen-boron-phosphorus-doped mesoporous carbon and preparation method and application thereof

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Embodiment 1

[0062] A method for preparing an ellipsoidal nitrogen-boron-phosphorus-doped mesoporous carbon material, specifically comprising the steps of:

[0063] (1) Dissolve 0.082g of nitrogen-containing precursor, 0.082g of boron-containing precursor and 0.082g of phosphorus-containing precursor in 20mL of ethanol in turn, add 0.5g of ellipsoidal mesoporous silica, and then add 2.05g of organic high Molecular polymer, stirring to make the organic polymer and precursor fully immersed in the pores of ellipsoidal mesoporous silica, after the ethanol solvent evaporates, dry at 30°C for 24h to obtain carbon source / nitrogen source / boron source / phosphorus source / silicon dioxide complex;

[0064] The amount of ellipsoidal mesoporous silica, organic polymer, nitrogen-containing precursor, boron-containing precursor, phosphorus-containing precursor and ethanol used above, according to ellipsoidal mesoporous silica: organic polymer Polymer: Nitrogen-containing precursor: Boron-containing precu...

Embodiment 2

[0079] A method for preparing an ellipsoidal nitrogen-boron-phosphorus-doped mesoporous carbon material, specifically comprising the steps of:

[0080] (1) Weigh 0.156g of nitrogen-containing precursor, 0.078g of boron-containing precursor and 0.078g of phosphorus-containing precursor and dissolve them in 20mL of ethanol in turn, add 0.5g of ellipsoidal mesoporous silica, and then add 1.95g Stir the organic high molecular polymer so that the organic high molecular polymer and the precursor are fully immersed in the pores of the ellipsoidal mesoporous silica. After the ethanol solvent is volatilized, dry it at 30°C for 24 hours to obtain the carbon source / nitrogen source / boron source / phosphorus source / silicon dioxide complex;

[0081] The amount of ellipsoidal mesoporous silica, organic polymer, nitrogen-containing precursor, boron-containing precursor, phosphorus-containing precursor and ethanol used above, according to ellipsoidal mesoporous silica: organic polymer Polymer: ...

Embodiment 3

[0091] A method for preparing an ellipsoidal nitrogen-boron-phosphorus-doped mesoporous carbon material, specifically comprising the steps of:

[0092] (1) Dissolve 0.082g of nitrogen-containing precursor, 0.163g of boron-containing precursor and 0.082g of phosphorus-containing precursor in hot deionized water, add 0.5g of ellipsoidal mesoporous silica, stir for 1 hour and place in At the top of the oven until the solvent evaporates completely, then add 2.05g of organic high molecular polymer, then add 20mL of ethanol solution, stir to make the organic high molecular polymer and precursor fully immersed in the pores of mesoporous silica, after the solvent evaporates, , drying at 55°C for 24 hours to obtain a carbon source / nitrogen source / boron source / phosphorus source / silicon dioxide composite;

[0093] The amount of ellipsoidal mesoporous silica, organic polymer, nitrogen-containing precursor, boron-containing precursor, phosphorus-containing precursor and ethanol used above,...

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Abstract

A method for preparing an ellipsoidal nitrogen-boron-phosphorus-doped mesoporous carbon uses ellipsoidal mesoporous silica as a hard template, an organic macromolecule polymer as a carbon source, a nitrogen-containing precursor as a nitrogen source, a boron-containing precursor as a boron source, a phosphorus-containing precursor as a phosphorus source, and ethyl alcohol or deionized water as a solvent, by stirring, the precursors are fully immersed in a pore channel of the ellipsoidal mesoporous silica, and drying is performed after the solvent volatilizes completely, thereby obtaining the ellipsoidal nitrogen-boron-phosphorus-doped mesoporous carbon; then in nitrogen atmosphere, the ellipsoidal nitrogen-boron-phosphorus-doped mesoporous carbon is heated at a heating rate of 1 DEG C / min, and is calcined, and then is heated at a heating rate of 2 DEG C / min, and is calcined, thereby obtaining an ellipsoidal mesoporous carbon / silica compound; and finally the ellipsoidal mesoporous carbon / silica compound is stirred in an acid solution, and is centrifuged, washed and dried, thereby obtaining ellipsoidal nitrogen-boron-phosphorus-doped mesoporous carbon. Stacking density of the ellipsoidal nitrogen-boron-phosphorus-doped mesoporous carbon that is obtained is relatively high, and the mesoporous structure is orderly, so that the ellipsoidal nitrogen-boron-phosphorus-doped mesoporous carbon can be used as an electrode material for manufacture of a supercapacitor.

Description

technical field [0001] The invention belongs to the field of electrochemistry and relates to an inorganic nanometer material, in particular to a doped mesoporous carbon material, specifically an ellipsoidal nitrogen, boron and phosphorus doped mesoporous carbon material and a preparation method and application thereof. Background technique [0002] As a new class of porous materials, ordered mesoporous carbons have been widely used in catalysis, adsorption, Various fields of electrochemistry, energy storage and biology. The functionalization of mesoporous carbon materials by doping with heteroatoms has important research value and application prospects for improving their performance. Among the many dopants, nitrogen is the most sought after element by researchers. P element and N element have the same outermost electrons, and B element and C element are close to each other. Their chemical properties are similar, and they are another better doping element. Therefore, the r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G11/32C01B31/02
CPCY02E60/13
Inventor 王静沈绍典王思怡王爱民王根礼毛东森卢冠忠
Owner SHANGHAI INST OF TECH
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