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A method for preparing a conductive homogeneous monolayer transition metal carbide film

A transition metal and metal titanium carbide technology, which is applied in the direction of carbide, titanium carbide, non-metallic conductors, etc., can solve the problems of less research on titanium carbide conductive films, achieve poor electrical conductivity, good application prospects, and simple preparation process Efficient effect

Inactive Publication Date: 2019-01-18
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The preparation of two-dimensional layered metal carbide MXene has been relatively mature, but there are few studies on single-layer or few-layer titanium carbide conductive films.

Method used

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  • A method for preparing a conductive homogeneous monolayer transition metal carbide film
  • A method for preparing a conductive homogeneous monolayer transition metal carbide film
  • A method for preparing a conductive homogeneous monolayer transition metal carbide film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] (1) Weigh 6mg of multilayer titanium carbide (Ti 3 C 2 ) and 6ml absolute ethanol, titanium carbide is dispersed in absolute ethanol;

[0036] (2) Weighing 80 ml of dimethyl sulfoxide in an Erlenmeyer flask, transferring the titanium carbide dispersion prepared in step (1) to the Erlenmeyer flask, and heating and stirring at 60° C. for 4 hours;

[0037] (3) Centrifuge the titanium carbide dispersion prepared in step (2) 3 times at 1500rpm, pour off the supernatant containing dimethyl sulfoxide, wash 3 times with absolute ethanol, and vacuum at 60°C Dry for 12 hours;

[0038] (4) Preparation of titanium carbide conductive film: dissolving the titanium carbide powder prepared in step (3) in 6ml of absolute ethanol to make a concentration of 1mg / ml dispersion liquid, then carry out ultrasonic pulverization under ice bath conditions After 2 hours, the dispersion solution was vacuum filtered to form a film to obtain a titanium carbide conductive film.

[0039] The proper...

Embodiment 2

[0048] (1) Weigh 12mg of multilayer titanium carbide (Ti 3 C 2 ) and 6ml absolute ethanol, titanium carbide is dispersed in absolute ethanol;

[0049] (2) Weighing 80ml of dimethyl sulfoxide solution in the Erlenmeyer flask, transferring the titanium carbide dispersion prepared in step (1) to the Erlenmeyer flask, heating and stirring at 60°C for 4 hours;

[0050] (3) Centrifuge the titanium carbide dispersion prepared in step (2) 3 times at 1500rpm, pour off the supernatant containing dimethyl sulfoxide, wash 3 times with absolute ethanol, and vacuum at 60°C Dry for 12 hours;

[0051] (4) Preparation of titanium carbide conductive film: dissolving the titanium carbide powder prepared in step (3) in 6ml of dehydrated alcohol to make a concentration of 2mg / ml dispersion liquid, then carry out ultrasonic pulverization under ice bath conditions After 2 hours, the dispersion solution was vacuum filtered to form a film to obtain a titanium carbide conductive film.

[0052] The ...

Embodiment 3

[0058] (1) Weigh 18mg of multilayer titanium carbide (Ti 3 C 2 ) and 6ml absolute ethanol, titanium carbide is dispersed in absolute ethanol;

[0059] (2) Weighing 80 ml of dimethyl sulfoxide solution in a conical flask, transferring the titanium carbide dispersion prepared in step (1) to the conical flask, heating and stirring at 60° C. for 4 hours;

[0060] (3) Centrifuge the titanium carbide dispersion prepared in step (2) 3 times at 1500rpm, pour off the supernatant containing dimethyl sulfoxide, wash 3 times with absolute ethanol, and vacuum at 60°C Dry for 12 hours;

[0061] (4) Dissolving the titanium carbide powder prepared in step (3) in 6ml of dehydrated alcohol to form a dispersion with a concentration of 3mg / ml, then ultrasonically crushing it for 2h under ice-bath conditions, and finally vacuuming the dispersion Suction filtration to form a film to obtain a titanium carbide conductive film.

[0062] The properties of the conductive film prepared in this embodi...

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Abstract

The invention discloses a method for preparing a conductive homogeneous monolayer transition metal carbide film, which provides a vacuum suction filtration method for preparing a metal carbide conductive film. The method comprises the following steps: firstly, preparing a metal titanium carbide dispersion into an ethanol dispersion, then adding the titanium carbide dispersion into dimethyl sulfoxide for stirring treatment, then centrifugally dispersing the dispersion to obtain an upper cloudy liquid, performing ultrasonic treatment on the upper cloudy liquid in an ultrasonic cell pulverizer, and finally vacuum pumping and filtering the ultrasonic upper cloudy liquid to form a film. The conductive monolayer transition metal carbide thin film prepared by this method has good toughness and high conductivity, and can be used to prepare conductive homogeneous monolayer transition metal carbide thin film. This method is simple and efficient, and has broad application prospects.

Description

technical field [0001] The invention relates to the technical field of conductive materials, in particular to a method for preparing a conductive uniform monolithic transition metal carbide film. Background technique [0002] At present, there are more and more two-dimensional materials, which have attracted extensive research attention due to their excellent performance. Among them, the new two-dimensional layered transition metal carbide MXene has attracted more and more attention. Metal carbide MXene with a layered structure is a new type of two-dimensional nanomaterial first reported by Yury Gogotsi et al. in 2011 (Adv. mechanical properties. It has shown great potential in energy storage, adsorption, sensors, conductive fillers and other fields. With the development of electronic devices in the 21st century towards portability and portability, flexible titanium carbide conductive films will surely become a research hotspot and gradually occupy a leading position in th...

Claims

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Application Information

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IPC IPC(8): H01B1/06C01B32/921
Inventor 贾志欣李群洋李彰杰陈勇军贾德民
Owner SOUTH CHINA UNIV OF TECH
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