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A kind of titanium aluminum carbon material that can be etched in water and its preparation method and the preparation method of organ-shaped material

A technology of titanium aluminum carbon and slurry, which is applied in chemical instruments and methods, carbon compounds, inorganic chemistry, etc., can solve the problems of environmental and human injury, unsuitable for large-scale use, etc., to shorten the reaction time, speed up the process, and avoid acid and alkali The effect of the use of the solution

Active Publication Date: 2021-04-30
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, these methods all involve dangerous chemicals such as acid and alkali, and have certain harm to the environment and human body, so they should not be used in large quantities.

Method used

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  • A kind of titanium aluminum carbon material that can be etched in water and its preparation method and the preparation method of organ-shaped material
  • A kind of titanium aluminum carbon material that can be etched in water and its preparation method and the preparation method of organ-shaped material
  • A kind of titanium aluminum carbon material that can be etched in water and its preparation method and the preparation method of organ-shaped material

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preparation example Construction

[0033] Specifically, the preparation method of the titanium-aluminum-carbon material that can be etched in water of the present invention comprises the following steps:

[0034] In the first step, the raw materials used are Ti powder (99.9%), Al powder (98.9%), TiC powder (99.9%), and the powders of A-site doping elements are Si powder, Ga powder, Ge powder, In powder and Sn powder One or more of them; pure Ga powder (99.9%), In powder (99.9%) and Sn powder (99.9%) are preferred. The raw materials are all reagents from Aladdin Company. TiC as the preparation of Ti 3 AlC 2 It is a low-temperature additive for materials, which will reduce the temperature of phase formation; Al powder and powder of A-site doping elements are used to synthesize low-temperature soluble aluminum alloy raw materials, and must be kept at low temperature during sintering to generate soluble aluminum alloys. Instead of pure Al atomic layer.

[0035] In the second step, the Ti powder, Al powder, and ...

Embodiment 1

[0041] In the glove box, grind Ti powder, Al powder, TiC powder, Ga powder, In powder and Sn powder to obtain a uniformly mixed raw material. The molar ratio of Ti powder, Al powder and TiC powder is 3:1.2:2, with Based on the total mass of Al powder and A-site doping element powder, the percentage content of each component is: Al powder 90%, Sn powder 6%, Ga powder 2%, In powder 2%; graphite in spark plasma sintering furnace The inside of the mold is lined with a layer of graphite paper. Take 5g of the raw material mixed uniformly with an agate mortar and ball mill in the glove box and put it into the graphite mold. In the spark plasma sintering furnace, under vacuum conditions, apply an axial pressure of 10MPa. The heating rate is 100°C / min, hold at 700°C for 5 minutes, and hold at 1200°C for 5 minutes to obtain the required titanium-aluminum-carbon ceramic block that can be etched in water, and put the obtained ceramic block into Al 2 o 3 Add an appropriate amount of agate...

Embodiment 2

[0043] In the glove box, Ti powder, Al powder, TiC powder, Ga powder, In powder and Sn powder are ground to obtain a uniformly mixed raw material, and the molar ratio of Ti powder, Al powder and TiC powder is 3:1.4:2, with Based on the total mass of Al powder and A-site doping element powder, the percentage content of each component is: Al powder 70%, Sn powder 10%, Ga powder 15%, In powder 5%; graphite in spark plasma sintering furnace The inside of the mold is lined with a layer of graphite paper. Take 5g of the raw material mixed uniformly with an agate mortar and ball mill in the glove box and put it into the graphite mold. In the spark plasma sintering furnace, under vacuum conditions, apply an axial pressure of 30MPa. The heating rate is 80°C / min, hold at 750°C for 8 minutes, and hold at 1300°C for 10 minutes to obtain the required titanium-aluminum-carbon ceramic block that can be etched in water, and put the obtained ceramic block into Al 2 o 3 Add an appropriate amou...

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Abstract

The invention provides a titanium-aluminum-carbon material that can be etched in water, a preparation method thereof, and a preparation method of an organ-shaped material, comprising: mixing and grinding Ti powder, Al powder, TiC powder and A-site doping element powder, The mixed material is obtained; the powder of A-site doped elements includes Ga powder, In powder and Sn powder; the mixed material is sintered to obtain a block raw material; the block raw material is subjected to wet ball milling to obtain a slurry; the slurry is dried, A titanium-aluminum carbon powder material is obtained. Put the titanium-aluminum-carbon material into water, and react at 30-60°C for 24-48h under stirring conditions to obtain organ-shaped Ti 3 C 2 T x Material. The titanium-aluminum-carbon material of the present invention can be etched to form organ-shaped Ti just by putting it in water. 3 C 2 T x Materials, effectively avoiding the impact of acid and alkali solutions on the environment.

Description

technical field [0001] The invention belongs to the field of preparation of MAX phase materials, in particular to a titanium aluminum carbon material which can be etched in water and its preparation method and organ-shaped Ti 3 C 2 T x The method of preparation of the material. Background technique [0002] In recent years, new three-dimensional layered materials M n+1 AX n It has received special attention from everyone, where M represents transition metals, such as V, Ti, Mo, etc., A is mainly group III or IV elements, such as Al, Ga, In, Sn, Si, etc., X is C or N, n=1 , 2, 3, 4, and 5 can be referred to as 211-phase, 312-phase, 413-phase and 523-phase respectively. And 312 phase Ti 3 AlC 2 This material is favored by everyone. Since the Ti-Al bond and the Al atomic layer are combined with metal bonds, the interlayer bonding method is similar to the van der Waals bond between graphite layers, so the Al atomic layer is easy to be bonded. Acidic or alkaline solution ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B32/90
CPCC01P2002/72C01P2004/03C01P2004/80C01B32/90
Inventor 秦毅熊涛赵婷朱建锋王芬张佩武清方媛
Owner SHAANXI UNIV OF SCI & TECH
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