Preparation method of ceria/two-dimensional layered titanium carbide composite material by precipitation method
A ceria, two-dimensional layered technology is applied in the field of preparing ceria/two-dimensional layered titanium carbide composite materials by a precipitation method, which can solve the problems of unsuitability for mass production, narrow application range, small surface area, etc. The method is simple and effective, the morphology is diverse, and the specific surface area is increased.
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Embodiment 1
[0030] Step 1, refine the powder
[0031] Refinement of ternary layered Ti with a purity greater than 97 wt% by high energy ball milling 3 AlC 2 Ceramic powder, ball milling conditions: the mass ratio of ball stone, mixing material and absolute ethanol is 10:1:1, the ball milling speed is 350r / min, the high energy ball milling time is 2h, and then the obtained solid-liquid mixture is baked at 40°C Dry, get Ti 3 AlC 2 ceramic powder;
[0032] Step 2, two-dimensional layered nanomaterial MXene-Ti 3 C 2 preparation of
[0033] Ti obtained in step 1 3 AlC 2 The ceramic powder is immersed in HF acid solution, in which 5gTi 3 AlC 2 The powder was immersed in 80ml mass concentration of 40wt% HF acid solution and reacted for 24h; magnetic stirring, the Ti 3 AlC 2 After the powder was corroded, it was centrifugally washed with deionized water until the pH was 6, and the obtained solid sample was dried at room temperature to obtain the two-dimensional layered nanomaterial MX...
Embodiment 2
[0041] Step 1, refine the powder
[0042] Refinement of ternary layered Ti with a purity greater than 97 wt% by high energy ball milling 3 AlC 2 Ceramic powder, ball milling conditions: the mass ratio of ball stone, mixing material and absolute ethanol is 10:1:1, the ball milling speed is 350r / min, the high energy ball milling time is 2h, and then the obtained solid-liquid mixture is baked at 40°C Dry, get Ti 3 AlC 2 ceramic powder;
[0043] Step 2, two-dimensional layered nanomaterial MXene-Ti 3 C 2 preparation of
[0044] Ti obtained in step 1 3 AlC 2 The ceramic powder is immersed in HF acid solution, in which 5gTi 3 AlC 2 The powder was immersed in 80ml mass concentration of 40wt% HF acid solution and reacted for 24h; magnetic stirring, the Ti 3 AlC 2 After the powder was corroded, it was centrifugally washed with deionized water until the pH was 6, and the obtained solid sample was dried at room temperature to obtain the two-dimensional layered nanomaterial MX...
Embodiment 3
[0052] Step 1, refine the powder
[0053] Refinement of ternary layered Ti with a purity greater than 97 wt% by high energy ball milling 3 AlC 2 Ceramic powder, ball milling conditions: the mass ratio of ball stone, mixing material and absolute ethanol is 10:1:1, the ball milling speed is 350r / min, the high energy ball milling time is 2h, and then the obtained solid-liquid mixture is baked at 40°C Dry, get Ti 3 AlC 2 ceramic powder;
[0054] Step 2, two-dimensional layered nanomaterial MXene-Ti 3 C 2 preparation of
[0055] Ti obtained in step 1 3 AlC 2 The ceramic powder is immersed in HF acid solution, in which 5gTi 3 AlC 2 The powder was immersed in 80ml mass concentration of 40wt% HF acid solution and reacted for 24h; magnetic stirring, the Ti 3 AlC 2 After the powder was corroded, it was centrifugally washed with deionized water until the pH was 6, and the obtained solid sample was dried at room temperature to obtain the two-dimensional layered nanomaterial MX...
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