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A rod-shaped polyaniline-supported modified titanium carbide and its low-temperature preparation method

A technology of polyaniline and titanium carbide, applied in chemical instruments and methods, titanium compounds, inorganic chemistry, etc., can solve problems such as damage, and achieve the effects of simple and safe operation, reduced oxidation, and uniform distribution

Active Publication Date: 2019-04-16
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional high temperature (above 150°C) hydrothermal modification of Ti 3 C 2 method to easily make Ti 3 C 2 Oxidation, destruction of Ti 3 C 2 two-dimensional layered structure

Method used

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  • A rod-shaped polyaniline-supported modified titanium carbide and its low-temperature preparation method
  • A rod-shaped polyaniline-supported modified titanium carbide and its low-temperature preparation method
  • A rod-shaped polyaniline-supported modified titanium carbide and its low-temperature preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] 1) Refined powder

[0041] Refinement of ternary layered Ti with a purity greater than 97% by high energy ball milling 3 AlC 2 Ceramic powder, ball milling condition: the mass ratio of ball stone, mixing material and ball milling medium (dehydrated alcohol) is 10:1:1, and ball milling speed is 400r / min, and the time of high-energy ball milling is 4h, then the gained solid-liquid mixture is in Dry at 50°C to obtain Ti with a particle size of about 8 μm 3 AlC 2 Ceramic powder.

[0042] 2) Two-dimensional layered nanomaterial MXene-Ti 3 C 2 preparation of

[0043] With the obtained Ti in step 1) 3 AlC 2 The ceramic powder is immersed in HF acid solution, in which 5g Ti 3 AlC 2 The powder was immersed in 100mL mass concentration of 40wt% HF acid solution for 48h; magnetic stirring, the ternary layered Ti 3 AlC 2 After the powder is corroded, it is centrifugally cleaned with deionized water until the pH is 5-6, and the obtained solid sample is dried at room tempe...

Embodiment 2

[0051] 1) Refined powder

[0052] Refinement of ternary layered Ti with a purity greater than 97% by high energy ball milling 3 AlC 2 Ceramic powder, ball milling condition: the mass ratio of ball stone, mixing material and ball milling medium (dehydrated alcohol) is 10:1:1, and ball milling speed is 400r / min, and the time of high-energy ball milling is 2h, then the gained solid-liquid mixture is in Dry at 50°C to obtain Ti with a particle size of about 56 μm 3 AlC 2 ceramic powder;

[0053] 2) Two-dimensional layered nanomaterial MXene-Ti 3 C 2 preparation of

[0054] With the obtained Ti in step 1) 3 AlC 2 The ceramic powder is immersed in the HF acid solution, in which 2gTi 3 AlC 2 The powder was immersed in 50mL mass concentration of 45wt% HF acid solution for 12h; magnetic stirring, the ternary layered Ti 3 AlC 2 After the powder is corroded, it is centrifugally cleaned with deionized water until the pH is 5-6, and the obtained solid sample is dried at room te...

Embodiment 3

[0058] 1) with embodiment 1 step 1);

[0059] 2) Two-dimensional layered nanomaterial MXene-Ti 3 C 2 preparation of

[0060] With the obtained Ti in step 1) 3 AlC2 The ceramic powder is immersed in HF acid solution, in which 2g Ti 3 AlC 2 The powder was immersed in 50mL mass concentration of 45wt% HF acid solution for 6h; magnetic stirring, the ternary layered Ti 3 AlC 2 After the powder is corroded, it is centrifugally cleaned with deionized water until the pH is 5-6, and the obtained solid sample is dried at room temperature to obtain a two-dimensional layered nanomaterial MXene-Ti 3 C 2 ;

[0061] 3) Preparation of Ti by low temperature stirring method 3 C 2 / polyaniline composite material

[0062] At room temperature, 0.015g tartaric acid was dissolved in 80mL ultrapure water, and the MXene-Ti obtained in step 2 was 3 C 2 Disperse 90 mg in the above solution and put it into an ultrasonic reactor for 1 h to form dispersed Ti 3 C 2 Mixed liquor; To the obtai...

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Abstract

The invention relates to rodlike polyaniline load modified titanium carbide and a low-temperature preparation method thereof. The low-temperature preparation method comprises the following steps: firstly adding two-dimensional lamelleted nano material MXene-Ti3C2 to tartaric acid solution, uniformly dispersing to obtain Ti3C2 mixed liquor; adding aniline to the Ti3C2 mixed liquor, and uniformly dispersing to obtain mixed solution; in 0-5 DEG C, adding a catalyst to the mixed solution dropwise, stirring and aggregating until the mixed solution is gradually changed from the transparent solution to the uniform black solution, washing and drying to obtain the rodlike polyaniline load modified titanium carbide. The preparation method is capable of preparing the PANI / Ti3C2 composite material in the 0-5 DEG C of the low temperature, reducing the oxidation of Ti3C2, reacting in the organic acid solution, enabling the PANI to be combined with the Ti3C2 more closely by functional groups on the surface of the modified Ti3C2, and improving the electromechanical performance of the material.

Description

【Technical field】 [0001] The invention belongs to the field of nanometer functional materials, and in particular relates to rod-shaped polyaniline loaded modified titanium carbide and a low-temperature preparation method thereof. 【Background technique】 [0002] Ternary layered ceramic material Ti 3 AlC 2 It belongs to layered hexagonal crystal structure. at Ti 3 AlC 2 In the crystal structure, Ti and C atoms form Ti 6 The C octahedron is separated by the Al layer, and the C atom is located in the center of the octahedron. The combination of C and Ti atoms is a strong covalent bond, while Ti-Ti, and between Ti and Al are weakly bonded, similar to the bond between graphite Van der Waals weak bonds. [0003] Ti 3 AlC 2 It has the properties of both metal and ceramics. At room temperature, it has thermal conductivity and electrical conductivity, as well as low Vickers microhardness and high elastic modulus. It can be machined like metal and can be machined at a high temp...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G73/02C08K9/04C08K9/00C08K7/00C08K3/14C01G23/00
CPCC01G23/00C01P2004/03C01P2004/20C01P2006/40C08G73/0266C08K3/14C08K7/00C08K9/00C08K9/04C08K2201/003C08K2201/011
Inventor 朱建锋任莹莹王雷汤祎黄家璇李学林牛冬娟周文静
Owner SHAANXI UNIV OF SCI & TECH
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