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Three-dimensional compound structure based on three-dimensional MXene and general synthesis method thereof

A three-dimensional composite and synthetic method technology, applied in the field of nanomaterials, can solve the problems that plague inorganic nanomaterials, and achieve the effects of broad application prospects, low energy consumption, and easy control and versatility.

Active Publication Date: 2018-09-11
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides a three-dimensional composite structure based on three-dimensional MXene with anti-stacking properties and its general synthesis method. The prepared product is composed of three-dimensional MXene with a flower-like hierarchical porous structure and uniformly loaded with different inorganic nanostructures, which overcomes the Inorganic nanomaterial particle agglomeration, poor conductivity and stacking of two-dimensional MXene solve the basic problems that plague the performance and application of inorganic nanomaterials

Method used

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  • Three-dimensional compound structure based on three-dimensional MXene and general synthesis method thereof
  • Three-dimensional compound structure based on three-dimensional MXene and general synthesis method thereof
  • Three-dimensional compound structure based on three-dimensional MXene and general synthesis method thereof

Examples

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Effect test

Embodiment 1

[0039] Example 1 load Co 3 o 4 Preparation method of three-dimensional MXene of nanoparticles (Scheme 1)

[0040] 1) 100mL MXene (2mg mL -1 ), 0.2g auxiliary polyvinylpyrrolidone and 2mmol Co(OAC) 2 4H 2 O is dispersed in water to prepare a suspension.

[0041] 2) Using an ultrasonic atomizer (3.2W, Siansonic DP30) to atomize the mixed suspension described in 1) into aerosol droplets with a size of about several microns;

[0042] 3) Using Ar gas as the carrier gas, the aerosol micro-droplets described in 2) are blown into a tube furnace with a preset temperature of 600° C. to make them dry quickly. The obtained product has an average size of about 4-6 μm, loaded with Co 3 o 4 Flower-like three-dimensional MXene particles of nanoparticles, Co 3 o 4 Nanoparticles are on the order of a few nanometers in size.

Embodiment 2

[0043] Example 2 load SnO 2 Preparation method of three-dimensional MXene of nanoparticles (Scheme 1)

[0044] 1) 100mL MXene (10mg mL -1 ), 0.2g auxiliary polyvinylpyrrolidone and 2mmol SnCl 4 Disperse in water to prepare a suspension.

Embodiment 3

[0047] The preparation method of the three-dimensional MXene of embodiment 3 loading Pt nanoparticles (scheme one)

[0048] 1) 100mL MXene (80mg mL -1 ), 0.2g polyvinylpyrrolidone and 2mmol H 2 PtCl 6 ·6H 2 O is dispersed in water to prepare a suspension.

[0049] 2) with embodiment 3 step 2);

[0050] 3) Using Ar gas as the carrier gas, the aerosol micro-droplets described in 2) are blown into a tube furnace with a preset temperature of 800°C to make them dry quickly. The obtained product is a flower-shaped three-dimensional MXene particle with an average size of about 3-4 μm and loaded with Pt nanoparticles, and the size of the Pt nanoparticles is about several nanometers.

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Abstract

The invention discloses a general synthesis method of a three-dimensional compound structure based on three-dimensional MXene, and belongs to the field of nano materials. The three-dimensional compound structure is composed of a three-dimensional MXene load inorganic nano structure and is of a flower-like hierarchical porous structure. The method comprises the steps that an ultrasonic atomizer isadopted for atomizing mixed suspension liquid of three-dimensional MXene particles, metal salt and an auxiliary into aerosol micro-droplets, and under inert or reactive atmosphere, high-temperature fast drying is conducted to obtain the three-dimensional compound structure with controllable structure and size; or the three-dimensional MXene particles and metal salt or a nonmetallic compound are evenly mixed in solvent or in a solid-phase mode to obtain a mixture, and high-temperature calcination is conducted under the inert or reactive atmosphere to obtain the three-dimensional compound structure with controllable structure and size. By means of the three-dimensional compound structure based on the three-dimensional MXene, the problems of inorganic nano material particle aggregation, poorconductivity and two-dimensional MXene stacking can be solved, and thus a foundation is laid for preparation, processing and various aspects of application of a MXene-based high-performance functionalmaterial.

Description

technical field [0001] The invention belongs to the field of nanomaterials, and relates to a three-dimensional composite structure based on three-dimensional MXene and a general synthesis method thereof. Background technique [0002] The unique size effect endows nanomaterials with superior or completely different physical and chemical properties than macroscopic materials, making them widely used in many fields. The performance of functional nanomaterials largely depends on their morphology, size, and crystal phase structure. Fine regulation of their microstructure to achieve structural design and controllable construction has become a hot area of ​​scientific research on nanomaterials in recent years. [0003] Inorganic materials are one of the most important functional materials, but the poor conductivity of most inorganic non-metallic materials limits their wide application. When the scale of inorganic materials is nanoscaled, the high surface free energy of nanoparticl...

Claims

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Application Information

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IPC IPC(8): C01B21/06C01B21/076C01B32/914C01B32/921C01B32/949C01B32/907C01B21/082
CPCC01B21/0617C01B21/062C01B21/0768C01B21/082C01B32/907C01B32/914C01B32/921C01B32/949C01P2004/03C01P2004/32C01P2004/61
Inventor 王治宇邱介山修陆洋
Owner DALIAN UNIV OF TECH
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