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Preparation method of MXene aerogel with spherical pore structure

A pore structure and airgel technology, applied in chemical instruments and methods, nanotechnology for materials and surface science, inorganic chemistry, etc., can solve the problems of lower overall performance, increased contact resistance, and lower specific surface area of ​​materials. Achieve the effect of improving the overall performance, light density, and easy process operation

Inactive Publication Date: 2021-05-28
TONGJI UNIV
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

At present, the application of MXene focuses on composite membrane materials and powdered nano-hybrid materials. In these applications, MXene sheets often reduce the specific surface area of ​​the material due to self-stacking, and at the same time lead to an increase in contact resistance and reduce the overall performance.

Method used

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  • Preparation method of MXene aerogel with spherical pore structure
  • Preparation method of MXene aerogel with spherical pore structure
  • Preparation method of MXene aerogel with spherical pore structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0027] (1) Using a separatory funnel, wash 50 mL of styrene with 10% NaOH solution three to four times, and then with deionized water until the effluent is neutral, and store the pretreated styrene monomer in a refrigerator for later use.

[0028] (2) Put the styrene monomer obtained in (1) into a 250mL three-necked flask, and weigh 0.272g of azobisisobutyronitrile and 0.272g of methacryloxyethyltrimethylammonium chloride with an analytical balance , Measure 5mL of deionized water and 145mL of methanol with a graduated cylinder, and mix them with styrene.

[0029] (3) Put the three-neck flask in (2) into a water bath, stir with a magnetic force at 350 rpm, and pass argon gas for 30 minutes to remove oxygen.

[0030] (4) The reactants in (3) were kept at a water bath temperature of 80° C. to continue the reaction for 6 h.

[0031] (5) the reaction product in (4) was washed 3 times with methanol centrifugally, and deionized water was centrifugally washed 2 times to carry out so...

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Abstract

The invention belongs to the field of synthesis of environmental nanomaterials, and provides a preparation method of MXene aerogel with a spherical pore structure. The MXene aerogel with the three-dimensional spherical pore structure is constructed through a template induction method and an emulsion method, and the preparation method comprises the steps of preparation of polystyrene (PS) microspheres, preparation of a Ti3C2Tx MXene dispersion liquid, preparation of PS (at) MXene, preparation of Jauns MXene and preparation of the MXene aerogel. The process is simple and convenient to operate and simple in flow, and the prepared MXene aerogel with the spherical pore structure is light in density, rich in micropores, adjustable in pore structure and wide in application value, and can be applied to the fields of electromagnetic shielding, capacitive deionization, electro-adsorption and the like.

Description

technical field [0001] The invention belongs to the technical field of environmental material synthesis, and in particular relates to a preparation method of MXene airgel with a spherical pore structure. Background technique [0002] Two-dimensional transition metal carbon / nitride (MXene) is a new two-dimensional nanomaterial with excellent electrical properties and unique chemical properties. At present, the application of MXene focuses on composite membrane materials and powdered nano-hybrid materials. In these applications, MXene sheets often reduce the specific surface area of ​​the material due to self-stacking, and at the same time lead to an increase in contact resistance and reduce the overall performance. Building a three-dimensional nanoporous structure can solve this problem at the microscopic scale, and the overall performance of the material can be improved by adjusting the microstructure of the material. Contents of the invention [0003] The main purpose of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B32/90B82Y30/00B82Y40/00
CPCC01B32/90B82Y30/00B82Y40/00C01P2004/03C01P2004/32C01P2004/62
Inventor 马杰刘宁宁
Owner TONGJI UNIV
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