Environment-friendly synthesis method of two-dimensional transition metal carbide or nitride nanosheets

A transition metal, green synthesis technology, used in carbides, nitrogen-metal/silicon/boron binary compounds, carbon compounds, etc., can solve problems such as limiting the scope of application, affecting the surface properties of products, and safety hazards for researchers. Promote the effect of popularization and application, easy operation, and rich synthesis methods

Inactive Publication Date: 2017-05-31
SUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this kind of synthesis method will directly affect the surface properties of the product, which limits its application range, and because a large amount of fluorine-containing acidic medium is used in the reaction raw materials, it poses a huge hazard to the safety of researchers.

Method used

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  • Environment-friendly synthesis method of two-dimensional transition metal carbide or nitride nanosheets
  • Environment-friendly synthesis method of two-dimensional transition metal carbide or nitride nanosheets
  • Environment-friendly synthesis method of two-dimensional transition metal carbide or nitride nanosheets

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Example 1: Slowly mix TMAOH with V 2 The AlC powder is fully mixed (the ratio of the two is 10ml: 1g), and the V 2Corrosion and intercalation of AlC at room temperature for 36 hours, centrifugal washing with ultrapure water, washing away excess organic base, collecting the precipitate, dispersing the collected precipitate in 300ml of ultrapure water by ultrasonic method and keeping the dispersion evenly dispersed, centrifuging at 3500rpm After 15 minutes, the unexfoliated particles were removed to obtain a stable polygonal two-dimensional transition metal vanadium carbide nanosheet dispersion.

Embodiment 2

[0039] Example 2: Slowly mix TMAOH with Nb 2 AlC powder is fully mixed (the ratio of the two is 10ml:1g), and the Nb 2 Corrosion and intercalation of AlC at room temperature for 36 hours, centrifugal washing with ultrapure water, washing away excess organic base, collecting the precipitate, dispersing the collected precipitate in 300ml of ultrapure water by ultrasonic method and keeping the dispersion evenly dispersed, centrifuging at 3500rpm After 15 minutes, the unexfoliated particles were removed to obtain a stable polygonal two-dimensional transition metal niobium carbide nanosheet dispersion.

Embodiment 3

[0041] Example 3: Slowly mix TMAOH with Ti 2 AlC powder is fully mixed (the ratio of the two is 10ml:1g), and the Ti 2 Corrosion intercalation of AlC at room temperature for 12 hours, centrifugal washing with ultrapure water, washing away excess organic base, collecting the precipitate, dispersing the collected precipitate in 300ml of ultrapure water by hand shaking and keeping the dispersion evenly dispersed, 3500rpm Centrifuge for 15 minutes to remove unexfoliated particles to obtain a stable polygonal two-dimensional transition metal carbide nanosheet dispersion.

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PUM

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Abstract

The invention discloses an environment-friendly synthesis method of two-dimensional transition metal carbide or nitride nanosheets. The environment-friendly synthesis method comprises the following steps: mixing a corrosion intercalation agent and a ternary layered ceramic material, performing a corrosion intercalation reaction, and then performing shearing dispersion treatment to obtain the two-dimensional transition metal carbide nanosheets or the two-dimensional transition metal nitride nanosheets. The synthesis method of the two-dimensional transition metal carbide or nitride nanosheets, provided by the invention, is environment-friendly, simple in process, easy to operate, safe and controllable in process and low in time consumption and energy consumption; and by the synthesis method, the synthesizing way of the two-dimensional transition metal carbide or nitride nanosheets is enriched and popularization and application of the two-dimensional transition metal carbide or nitride nanosheets can be effectively promoted.

Description

technical field [0001] The invention particularly relates to a method for green synthesis of two-dimensional transition metal carbide or nitride nanosheets, which belongs to the technical field of two-dimensional nanomaterial preparation. Background technique [0002] As a new type of nanomaterials, two-dimensional nanomaterials have attracted extensive attention from researchers because of their large surface area and extremely thin thickness. Especially in recent years, researchers have discovered and synthesized a two-dimensional transition metal carbide or nitride nanosheet. The nature of alkenes, so they can be collectively named as two-dimensional transition metal carbides or nitrides. As the research continues, more and more two-dimensional transition metal carbide or nitride nanosheets have shown great application potential in the fields of energy, biomedicine, catalysis, lubrication, and composite materials. At present, such two-dimensional transition metal carbid...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B21/06C01B32/914C01B32/921B82Y40/00
CPCC01B21/06C01P2004/04C01P2004/22
Inventor 耿凤霞宣琎楠王志强
Owner SUZHOU UNIV
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