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Phosphorus-doped functionalized mesoporous carbon material preparation method

A functionalized, mesoporous carbon technology, applied in the field of inorganic materials, can solve the problems of poor element dispersion and phosphorus doping effect, and achieve excellent effect and good element dispersion

Inactive Publication Date: 2019-02-01
ANHUI UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the existing mesoporous carbon materials usually have the defects of poor phosphorus doping effect and poor element dispersion.

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0030] A method for preparing a phosphorus-doped functionalized mesoporous carbon material, comprising the following steps:

[0031] (1) First, dissolve 1.5g of triblock copolymer in 75ml of distilled water, add 2g of sucrose, stir to dissolve, then add 0.7g of triphenylphosphine and 15ml of ethanol, stir well at room temperature, then add 6.9mL of orthosilicic acid Ethyl ester, fully stirred to obtain mixed solution A;

[0032] (2) Transfer the mixed solution A into a single-necked flask, stir in a water bath environment at 40°C, add 4.6ml of 2mol / L hydrochloric acid solution dropwise at 0.5ml / min during the stirring process, and stir overnight in the water bath environment to obtain a mixture Liquid B;

[0033] (3) Transfer the mixed solution B into an autoclave, and conduct a hydrothermal reaction at 373K for 24 hours. After the reaction is completed, remove the lower layer product and dry it at 353K to obtain a phosphorus-containing composite precursor;

[0034] (4) Carb...

Embodiment 2

[0038] A method for preparing a phosphorus-doped functionalized mesoporous carbon material, comprising the following steps:

[0039] (1) First, dissolve 3g of triblock copolymer in 30ml of distilled water, add 7.5g of sucrose, fully stir to dissolve, then add 0.2g of triphenylphosphine and 30ml of ethanol, stir well at room temperature, then add 3.4mL of orthosilicic acid Ethyl ester, fully stirred to obtain mixed solution A;

[0040] (2) Transfer the mixed solution A into a single-necked flask, stir in a 40°C water bath environment, add 10.5ml of 2mol / L hydrochloric acid solution dropwise at 0.5ml / min during the stirring process, and stir overnight in the water bath environment to obtain a mixture Liquid B;

[0041] (3) Transfer the mixed solution B into an autoclave, and conduct a hydrothermal reaction at 373K for 12 hours. After the reaction is completed, take the lower layer product and dry it at 353K to obtain a phosphorus-containing composite precursor;

[0042] (4) Carb...

Embodiment 3

[0046] A method for preparing a phosphorus-doped functionalized mesoporous carbon material, comprising the following steps:

[0047] (1) First, dissolve 1.5g of triblock copolymer in 30ml of distilled water, add 7.5g of sucrose, stir to dissolve, then add 0.7g of triphenylphosphine and 15ml of ethanol, stir at room temperature, and then add 3.4mL of orthosilicon Ethyl acetate, fully stirred to obtain mixed solution A;

[0048] (2) Transfer the mixed solution A into a single-necked flask, stir in a 40°C water bath environment, add 10.5ml of 2mol / L hydrochloric acid solution dropwise at 0.5ml / min during the stirring process, and stir overnight in the water bath environment to obtain a mixture Liquid B;

[0049] (3) Transfer the mixed solution B into an autoclave, and conduct a hydrothermal reaction at 373K for 24 hours. After the reaction is completed, remove the lower layer product and dry it at 353K to obtain a phosphorus-containing composite precursor;

[0050] (4) Carboniz...

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Abstract

The invention provides a phosphorus-doped functionalized mesoporous carbon material preparation method. The method includes steps: (1) mixed liquid A preparation; (2) mixed liquid B preparation; (3) phosphorus-containing composite precursor preparation; (4) phosphorus-containing composite precursor carbonization treatment; (5) sample MC-TPP preparation. By innovative integration of functional element doping and mesoporous synthesis, synchronous preparation is realized, triphenylphosphine is optimal in effect according to researches on different phosphorus sources, and triphenylphosphine serving as a significant precursor not only provides a phosphorus source for carbon doping but also serves as a mesoporous synthesis additive playing a role in pore expanding. The prepared material has advantages of uniform mesoporous structure, excellent phosphorus doping effects, high element dispersity and the like.

Description

technical field [0001] The invention relates to the technical field of inorganic materials, in particular to a method for preparing a phosphorus-doped functionalized mesoporous carbon material. Background technique [0002] As we all know, many properties of carbon materials in actual use (such as adsorption, etc.) often depend on the pore structure and surface physical and chemical properties of the material. Not only the physical parameters such as pore diameter, pore volume and specific surface area of ​​the material affect the surface adsorption of carbon materials, but also The chemical characteristics of the surface of carbon materials also play an important role in specific adsorption, catalyst loading and surface reactions. Due to the chemical inertness and stability of carbon materials, it is difficult to functionalize them compared with silicon-based mesoporous materials. The study of chemicalization has become very meaningful and challenging. The functionalizatio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B32/05
CPCC01B32/05
Inventor 丁世磊韩梦成段锋蔡佳佳
Owner ANHUI UNIVERSITY OF TECHNOLOGY
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