Method for in situ synthesis of TiO2@Ti3C2 through intercalation and layering of hydrazine hydrate and product
A technology of in-situ synthesis and hydrazine hydrate, which is applied in the direction of chemical instruments and methods, chemical/physical processes, physical/chemical process catalysts, etc., can solve the problems of poor catalytic performance, increase interlayer distance, facilitate catalytic degradation, improve Effect of Purity and Crystallinity
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[0047] Example 1
[0048] 1) 15g Ti 3 AlC 2 -MAX phase ceramic powder was slowly added to 300mL of HF solution with a mass concentration of 49%, and reacted for 36h in a magnetic stirrer at 50°C in an oil bath;
[0049] 2) After the reaction, centrifuge the resulting solution at 3000 rpm for 5 minutes, pour out the supernatant, and wash the precipitate with deionized water, shake and shake well, then centrifuge under the same conditions, and repeat 6 times. The pH of the final supernatant was measured to be between 5 and 6, and then the precipitate was washed with absolute ethanol, centrifuged after shaking, and repeated twice with the same speed and time of centrifugation. After centrifugation, the resulting solution was suction filtered to obtain a precipitate. The resulting precipitate was vacuum dried at 60°C for 24h to obtain Mxene-Ti 3 C 2 material;
[0050] 3) The Mxene-Ti obtained in step 2) 3 C 2 The material and hydrazine hydrate were mixed according to the feed ratio of 1...
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[0053] Example 2
[0054] The preparation process refers to the process in Example 1. The difference is that the final temperature maintained in step 5) is 320°C for 1 hour. After the procedure is over, natural cooling is used. When the temperature drops to room temperature, the sample is taken out to obtain TiO 2 @Ti 3 C 2 material.
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[0055] Example 3
[0056] The preparation process refers to the process in Example 1. The difference is that the final temperature maintained in step 5) is 340°C for 1 hour. After the program ends, natural cooling is used. When the temperature drops to room temperature, the sample is taken out to obtain TiO 2 @Ti 3 C 2 material.
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