A kind of petal spherical titanium carbide ti3c2mxene and its preparation method and application
A titanium carbide, spherical technology, applied in the direction of titanium carbide, chemical instruments and methods, carbides, etc., can solve the problems of unsatisfactory metal conductivity, limited material application, etc., to improve electrochemical performance, excellent nano-effect, low cost Effect
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[0030] The present invention provides the preparation method of petal spherical titanium carbide described in the above technical scheme, comprising the following steps:
[0031] (1) Under stirring conditions, the Ti 3 AlC 2 Add the powder to the hydrofluoric acid solution to obtain titanium carbide after etching;
[0032] (2) under ultrasonic conditions, using different intercalants to peel off the titanium carbide obtained in the step (1) to obtain petal spherical titanium carbide;
[0033] The intercalation agent includes N,N-dimethylformamide, N-methylpyrrolidone, dimethylsulfoxide or acetonitrile.
[0034] In the present invention, under stirring conditions, Ti 3 AlC 2 Powder is added to hydrofluoric acid solution, and titanium carbide is obtained after etching.
[0035] In the present invention, the Ti 3 AlC 2 The particle size of the powder is preferably ≤300 mesh, more preferably 350-500 mesh. The present invention to the Ti 3 AlC 2 There is no special requir...
Embodiment 1
[0056] First of all, the Ti purchased with 5g 3 AlC 2 The raw materials were dispersed into a ball mill tank filled with 30 mL of ethanol reagent, and ball milled at a speed of 350 r / min for 2 h to obtain a uniform slurry. Then, the slurry was filtered and washed three times with absolute ethanol, and dried in a vacuum oven at 50°C for 12 hours, and the ball-milled Ti 3 AlC 2 Powder, placed in a 300-mesh sieve to get a particle size smaller than 300 mesh Ti 3 AlC 2 powder. At room temperature, pour the hydrofluoric acid solution with a mass fraction of 10% into a plastic container, put it into the rotor, adjust the magnetic stirring speed to 200r / min, and then slowly add 2g of ball-milled Ti 3 AlC 2 Powder, stirring while adding, wherein 1g of Ti 3 AlC 2 The powder corresponds to 10mL of hydrofluoric acid etching solution, and the magnetic stirring is kept for 24h. Next, the above mixed solution is centrifuged and washed in ultrapure water until the pH value of the su...
Embodiment 2
[0058] First of all, the Ti purchased with 5g 3 AlC 2 The raw materials were dispersed into a ball mill jar filled with 50 mL of ethanol reagent, and ball milled at a speed of 400 r / min for 3 h to obtain a uniform slurry. Then, the slurry was filtered and washed three times with absolute ethanol, and dried in a vacuum oven at 80°C for 12 hours, and the ball-milled Ti 3 AlC 2 Powder, placed in a 300-mesh sieve to get a particle size smaller than 300 mesh Ti 3 AlC 2 powder. At room temperature, pour the hydrofluoric acid solution with a mass fraction of 20% into a plastic container, put it into the rotor, adjust the magnetic stirring speed to 250r / min, and then slowly add 3g of ball-milled Ti 3 AlC 2 Powder, stirring while adding, wherein 1g of Ti 3 AlC 2 The powder corresponds to 10mL of hydrofluoric acid etching solution, and the magnetic stirring is maintained for 36h. Next, the above mixed solution is centrifuged and washed in ultrapure water until the pH of the sup...
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