Preparation method of hollow flower-ball-like vanadium disulfide
A vanadium disulfide and hollow flower technology, applied in the field of materials, can solve the problems of reducing efficiency, increasing costs, complex synthesis process, etc., and achieving the effects of low production cost, easy control and simple operation
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Embodiment 1
[0033] 1. Add 0.5g of ammonium metavanadate and 1.5g of thioacetamide to 30mL of ethylene glycol, stir evenly at room temperature at a speed of 500r / min; then add 0.3g of dodecyltrimethyl bromide ammonium, and stir evenly to obtain a precursor solution.
[0034] 2. Pour the precursor solution obtained in step 1 into a polytetrafluoroethylene-lined reactor with a filling ratio of 60%, seal it, and react at 160°C for 12 hours under airtight conditions. After the reaction, the reactor is naturally cooled to room temperature , the product was alternately washed three times with water and ethanol by centrifugation, and then placed in a vacuum drying oven, and dried at 60° C. for 12 hours at a vacuum degree of 0.9 MPa.
[0035] 3. Place the vacuum-dried product in a tube furnace, feed a mixture of argon and hydrogen with a volume ratio of 95:5, raise the temperature to 400°C at a heating rate of 10°C / min, and anneal at a constant temperature for 1 hour to obtain hollow flowers Sphe...
Embodiment 2
[0037] In step 1 of this embodiment, 0.2 g of ammonium metavanadate and 0.8 g of thioacetamide were added to 30 mL of ethylene glycol, and magnetically stirred at a speed of 500 r / min at room temperature; then 0.15 g of dodecane was added Base trimethyl ammonium bromide, stir evenly, obtain precursor solution. Other steps are the same as in Example 1 to obtain hollow flower spherical vanadium disulfide powder. from Image 6 with Figure 7 It can be seen that the obtained product is composed of a spherical flower-like structure with a relatively uniform distribution; Figure 8 It can be seen that the obtained product is a hollow structure.
Embodiment 3
[0039] In Step 1 of this example, 0.9 g of ammonium metavanadate and 3 g of thioacetamide were added to 30 mL of ethylene glycol, and magnetically stirred at a speed of 500 r / min at room temperature; then 0.6 g of dodecyltri Methyl ammonium bromide, stirred evenly to obtain a precursor solution. Other steps are the same as in Example 1 to obtain hollow flower spherical vanadium disulfide powder. from Figure 9 with Figure 10 It can be seen that the obtained product is composed of a uniform spherical flower-like structure; Figure 11 It can be seen that the obtained product is a hollow structure.
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