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A rod-shaped nitrogen-phosphorus co-doped mesoporous carbon material and its preparation method and application

A mesoporous carbon and co-doping technology, applied in the manufacture of hybrid/electric double layer capacitors, hybrid capacitor electrodes, etc. Chemical properties, large specific surface area and pore volume, effect of large pore size

Inactive Publication Date: 2017-02-15
SHANGHAI INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] However, there are no reports on rod-shaped nitrogen-phosphorus co-doped mesoporous carbon materials and their preparation methods.

Method used

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  • A rod-shaped nitrogen-phosphorus co-doped mesoporous carbon material and its preparation method and application
  • A rod-shaped nitrogen-phosphorus co-doped mesoporous carbon material and its preparation method and application
  • A rod-shaped nitrogen-phosphorus co-doped mesoporous carbon material and its preparation method and application

Examples

Experimental program
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Effect test

Embodiment 1

[0050] A method for preparing a rod-shaped nitrogen-phosphorus co-doped mesoporous carbon material, specifically comprising the following steps:

[0051] (1) Rod-shaped mesoporous silica is used as a hard template, organic polymers are used as carbon sources, nitrogen-containing precursors are used as nitrogen sources, phosphorus-containing precursors are used as phosphorus sources, and ethanol is used as solvent;

[0052] Dissolve 0.11g of nitrogen-containing precursor in 20g of ethanol, add 1.0g of rod-shaped mesoporous silica, then add 0.11g of phosphorus-containing precursor and 1.10g of organic high molecular polymer, stir to make it fully mixed, and then mix it Place it at room temperature until the ethanol is completely volatilized and dry it in an oven at 40°C to obtain a nitrogen source / phosphorus source / carbon source / silicon dioxide composite;

[0053] The amount of rod-shaped mesoporous silica, organic polymer, nitrogen-containing precursor, phosphorus-containing pr...

Embodiment 2

[0070] A method for preparing a rod-shaped nitrogen-phosphorus co-doped mesoporous carbon material, specifically comprising the following steps:

[0071] (1) Rod-shaped mesoporous silica is used as a hard template, organic polymers are used as carbon sources, nitrogen-containing precursors are used as nitrogen sources, phosphorus-containing precursors are used as phosphorus sources, and ethanol is used as solvent;

[0072] Dissolve 0.20g of nitrogen-containing precursor and 0.20g of phosphorus-containing precursor in 20g of ethanol, then add 1.0g of rod-shaped mesoporous silica, 0.98g of organic polymer, stir to make it fully mixed, and then Place it at room temperature until the ethanol is completely volatilized and dry it in an oven at 60°C to obtain a nitrogen source / phosphorus source / carbon source / silicon dioxide composite;

[0073] The amount of rod-shaped mesoporous silica, organic polymer, nitrogen-containing precursor, phosphorus-containing precursor and ethanol used a...

Embodiment 3

[0085] A method for preparing a rod-shaped nitrogen-phosphorus co-doped mesoporous carbon material, specifically comprising the following steps:

[0086] (1) Rod-shaped mesoporous silica is used as a hard template, organic polymers are used as carbon sources, nitrogen-containing precursors are used as nitrogen sources, phosphorus-containing precursors are used as phosphorus sources, and ethanol is used as solvent;

[0087] Stir and dissolve 0.43g of nitrogen-containing precursor and 0.43g of phosphorus-containing precursor into 20g of ethanol, then add 1.0g of rod-shaped mesoporous silica and 0.86g of organic high molecular polymer, stir to make it fully mixed, and then put It is placed at room temperature until the ethanol is completely volatilized, and then placed in an oven at 80°C to dry to obtain a nitrogen source / phosphorus source / carbon source / silicon dioxide composite;

[0088] The amount of rod-shaped mesoporous silica, organic polymer, nitrogen-containing precursor, ...

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Abstract

The invention discloses a rod-shaped nitrogen and phosphorus co-doping mesoporous carbon material and a preparation method and application thereof. The rod-shaped nitrogen and phosphorus co-doping mesoporous carbon material is of a mesoporous structure and comprises the following components based on atomic percent: 23.70 to 33.85% of nitrogen content, 0.51 to 0.72% of phosphorus content, and the balance of carbon; the aperture is distributed from 1.74 to 1.95nm; the specific surface area is about 585 to 1,173m<2> / g; the pore volume is 0.49 to 1.07cm<3> / g. The preparation method comprises the following steps: mixing and agitating rod-shaped mesoporous silica, an organic high-molecular polymer, a nitrogen-containing precursor, a phosphorus-containing precursor and alcohol, in order to enable the carbon source, a nitrogen source and a phosphorus source to be fully dipped into a pore channel of mesoporous silica; drying until alcohol is completely volatilized to obtain a nitrogen source / phosphorus source / carbon phosphorus / silica composition; sequentially processing by high-temperature carbonizing, silica removing and drying to obtain the rod-shaped nitrogen and phosphorus co-doping mesoporous carbon material. The rod-shaped nitrogen and phosphorus co-doping mesoporous carbon material is applied to manufacturing of an electrode material for a super capacitor.

Description

technical field [0001] The invention relates to a rod-shaped nitrogen-phosphorus co-doped mesoporous carbon material and a preparation method and application thereof, belonging to the field of inorganic nanometer materials and electrochemistry. Background technique [0002] Ordered mesoporous carbon materials have attracted great interest due to their ordered mesoporous structure, large specific surface area, uniform pore size distribution, and good hydrothermal stability and electrical conductivity. In recent years, researchers have been more committed to improving the performance of materials by doping heteroatoms into the framework of porous carbon materials, so that they can be more widely used in catalysis, adsorption, energy storage, and supercapacitors. As an electrode material for a supercapacitor, the material is required to have a large specific surface area and a suitable pore size. Doping with heteroatoms (N, B, S, P, etc.) can improve the pseudocapacitance and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01G11/38H01G11/24H01G11/86C01B31/02
CPCY02E60/13
Inventor 王静沈绍典许雯雯毛东森卢冠忠
Owner SHANGHAI INST OF TECH