A kind of preparation method of high specific surface area hierarchical porous alumina-zirconia nanocrystal
A high specific surface area, porous alumina technology, applied in zirconia, nanotechnology, etc., can solve the problem of low crystallinity of materials
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Embodiment 1
[0021] Add 2.36g of F127 into 15mL of ethanol and stir to dissolve, add 0.08g of aluminum isopropoxide and stir to mix evenly, then weigh 1.44g of zirconium n-butoxide, slowly drop into the above solution, stir and mix to obtain a reaction solution.
[0022] The reaction solution is placed in a reactor, and then the reactor is placed in a polytetrafluoroethylene-lined stainless steel reaction kettle pre-filled with distilled water, so that the reaction solution in the reactor does not directly contact the distilled water .
[0023] After the reactor is sealed, the temperature is raised to 130° C., and the distilled water in the reactor is heated to generate water vapor, which contacts with the reaction solution in the reactor to react.
[0024] After reacting for 32 hours, lower it to room temperature, open the reaction kettle, collect the solid product obtained from the reaction in the reactor, wash with ethanol, filter, dry at 60°C for 24h, and then roast at 400°C for 5 hour...
Embodiment 2
[0028] Add 2.36g of F127 into 15mL of ethanol and stir to dissolve, add 0.15g of aluminum isopropoxide and stir to mix evenly, then weigh 1.44g of zirconium n-butoxide, slowly drop into the above solution, stir and mix to obtain a reaction solution.
[0029] The reaction solution is placed in a reactor, and then the reactor is placed in a polytetrafluoroethylene-lined stainless steel reaction kettle pre-filled with distilled water, so that the reaction solution in the reactor does not directly contact the distilled water .
[0030] After the reactor is sealed, the temperature is raised to 135° C., and the distilled water in the reactor is heated to generate water vapor, which contacts with the reaction solution in the reactor to react.
[0031] After reacting for 28 hours, cool down to room temperature, open the reaction kettle, collect the solid product obtained from the reaction in the reactor, wash with ethanol, filter, dry at 60°C for 24h, and then roast at 400°C for 5 hou...
Embodiment 3
[0034] Add 2.36g of F127 into 15mL of ethanol and stir to dissolve, add 0.31g of aluminum isopropoxide and stir to mix evenly, then weigh 1.44g of zirconium n-butoxide, slowly drop into the above solution, stir and mix to obtain a reaction solution.
[0035] The reaction solution is placed in a reactor, and then the reactor is placed in a polytetrafluoroethylene-lined stainless steel reaction kettle pre-filled with distilled water, so that the reaction solution in the reactor does not directly contact the distilled water .
[0036] After the reactor is sealed, the temperature is raised to 140°C, and the distilled water in the reactor is heated to generate water vapor, which contacts with the reaction solution in the reactor to react.
[0037] After reacting for 24 hours, cool down to room temperature, open the reactor, collect the solid product obtained from the reaction in the reactor, wash with ethanol, filter, dry at 60°C for 24 hours, and then roast at 400°C for 5 hours to o...
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Abstract
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