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Method for preparing titanium carbide two-dimensional nanosheets by high-temperature vulcanization heat treatment method

A heat treatment method and high-temperature vulcanization technology, applied in the direction of titanium carbide, carbide, etc., can solve the problem of inability to obtain two-dimensional nanosheets

Active Publication Date: 2021-02-05
郑州伯利森新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, MX phases are usually not obtained in these reports, and even if MX phases are obtained, they all exist in the form of particles, and two-dimensional nanosheets cannot be obtained.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Select sublimed sulfur powder with a particle size of 50 microns and titanium sulfur carbon with a particle size of 50 microns as raw materials, according to S and Ti 2 The mass of SC is 1 gram and 1 gram respectively, and the powder is weighed, and then mixed in a mortar for 30 minutes to make it evenly mixed. -4 Pa, then melt and seal with a torch. Put it in a muffle furnace for reaction synthesis, the heating rate is 10°C / min, the synthesis temperature is 900°C, keep warm for 10h, after cooling with the furnace, dissolve the sulfur powder with carbon disulfide liquid, filter and wash with water to obtain single-phase black titanium carbide Material.

Embodiment 2

[0048] Select sublimed sulfur powder with a particle size of 70 microns and titanium sulfur carbon with a particle size of 70 microns as raw materials, according to S and Ti 2 The mass of SC is 1 gram and 1 gram respectively, and the powder is weighed, and then mixed in a mortar for 30 minutes to make it evenly mixed. -5 Pa, then melted and sealed with a welding torch, placed in a muffle furnace for reaction synthesis, the heating rate was 10°C / min, the synthesis temperature was 900°C, and the temperature was kept for 15h. After cooling with the furnace, dissolve the sulfur powder with carbon disulfide liquid, filter and wash with water to obtain a single-phase black titanium carbide material.

Embodiment 3

[0050]Select sublimed sulfur powder with a particle size of 50 microns and titanium sulfur carbon with a particle size of 50 microns as raw materials, according to S and Ti 2 The mass of SC is 1 g and 2 g respectively, weigh the powder, and then mix it in a mortar for 30 minutes to make it evenly mixed. -5 Pa, then melt and seal it with a welding torch, put it in a muffle furnace for reaction synthesis, the heating rate is 10°C / min, the synthesis temperature is 850°C, keep it warm for 15h, after cooling with the furnace, dissolve the sulfur powder with carbon disulfide liquid, filter and wash with water Finally, a single-phase black titanium carbide material is obtained.

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Abstract

The invention discloses a method for preparing titanium carbide two-dimensional nanosheets by a high-temperature vulcanization heat treatment method, which comprises the following steps of S1, puttingsublimed sulfur and titanium sulfur carbon powder into a mortar, and sufficiently grinding at room temperature to sufficiently and uniformly mix, S2, after grinding is finished, pressing the evenly-mixed raw material powder into a wafer in a dry mode, and sealing the wafer in a vacuum quartz tube, S3, placing the quartz tube in a heat treatment furnace to be heated to different temperatures for heat preservation, reducing the temperature to the room temperature after reaction, and acquiring a sulfur powder and titanium carbide mixture material in the quartz tube, and S4, dissolving sulfur powder with carbon disulfide liquid, filtering, and washing with water to obtain the single-phase black titanium carbide material. According to the preparation method, a new simple way is provided for preparation of the titanium carbide two-dimensional nanosheet material, so that production and development of the titanium carbide two-dimensional nanosheet material are promoted, and compared with preparation of the two-dimensional nanosheet material through HF acid etching, the method has the advantages of being free of pollution, capable of achieving batch production easily, low in cost and the like.

Description

technical field [0001] The invention relates to the technical field of functional ceramics, in particular to a method for preparing titanium carbide two-dimensional nanosheets by a high-temperature vulcanization heat treatment method. Background technique [0002] MAX phase is a general term for a series of ternary layered compounds, the general formula is Mn+1AXn, where M represents transition metal elements, A mainly refers to W group elements, X is carbon or nitrogen, n is generally 1,2,3, Corresponding to type 211,312,413 compounds, respectively. In the MAX phase, X atoms are packed into the octahedral structure formed by the close stacking of M atoms, while A atoms are located between the layers of MX. This special structure makes the MAX phase have both the excellent properties and processability of metals and ceramics. MXene material is a two-dimensional material system that is developing rapidly. At present, this type of material has attracted worldwide attention ...

Claims

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Application Information

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IPC IPC(8): C01B32/921
CPCC01B32/921C01P2004/20
Inventor 史冬丽李涛马尧
Owner 郑州伯利森新材料科技有限公司
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