A kind of aluminum nanosheet, its preparation method and application
A technology of aluminum nanometer and purpose, applied in nanotechnology, nanooptics, nanotechnology and other directions, can solve the problems of high equipment requirements, poor particle shape uniformity, difficult to promote, etc., and achieve excellent properties, high sheet formation rate, and low particle content. Effect
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Embodiment 1
[0047] Dissolve 0.665g of aluminum chloride (metal salt) and 0.27g of polyvinylpyrrolidone (PVP) in 10ml of mesitylene, stir at 80°C for 5 minutes to completely dissolve to form a homogeneous solution a, place it in 25ml in the flask. Then 0.57 g of lithium aluminum hydride (reducing agent) was dissolved in 10 ml of mesitylene to form solution b. Add solution b to the flask at one time, stir vigorously to mix the two solutions evenly. The flask was placed in an oil bath at 140°C for 4 hours, then taken out and cooled naturally in air. Pour the cooled solution into a centrifuge tube and centrifuge at 5000rpm for 20min, remove the supernatant. Then disperse the concentrated suspension with 15 mL of acetone, ultrasonicate for 5 min, and centrifuge at 8000 rpm for washing; repeat the operation three times. Vacuum dried, isolated from oxygen and stored for later use. attached figure 1 Figure a in the middle is the SEM image of the aluminum nanosheets prepared in this example. ...
Embodiment 2
[0049] Dissolve 1.621g of aluminum chloride (metal salt) and 0.5g of polyethylene glycol dimethyl ether (NHD) in 10ml of mesitylene, and stir for 5 minutes at 80°C to completely dissolve to form a homogeneous solution a. It was placed in a 25ml flask. Then 1.14 g of lithium aluminum hydride (reducing agent) was dissolved in 10 ml of mesitylene to form solution b. Add solution b to the flask at one time, stir vigorously to mix the two solutions evenly. The flask was placed in an oil bath at 140°C for 10 hours, then taken out and cooled naturally in air. The cooled solution was poured into a centrifuge tube and centrifuged at 5000rpm for 20min, and the supernatant was removed. Then disperse the concentrated suspension with 15 mL of ether, ultrasonicate for 5 min, and centrifuge at 8000 rpm for washing; repeat the operation three times. Vacuum dried, isolated from oxygen and stored for later use. attached figure 1 Figure b in the middle is the SEM image of the aluminum nanos...
Embodiment 3
[0051] Dissolve 0.33g of aluminum chloride (metal salt) and 0.01g of polyvinylpyrrolidone (PVP) in 10ml of mesitylene, stir at 80°C for 5 minutes to completely dissolve to form a homogeneous solution a, place it in 25ml in the flask. Then 0.057 g of lithium aluminum hydride (reducing agent) was dissolved in 10 ml of mesitylene to form solution b. Add solution b to the flask at one time, stir vigorously to mix the two solutions evenly. The flask was placed in an oil bath at 165°C for 3 hours, then taken out and cooled naturally in air. The cooled solution was poured into a centrifuge tube and centrifuged at 5000rpm for 20min, and the supernatant was removed. Then disperse the concentrated suspension with 15 mL of acetone, ultrasonicate for 5 min, and centrifuge at 8000 rpm for washing; repeat the operation three times. Vacuum dried, isolated from oxygen and stored for later use. attached figure 1 Figure c in the middle is the SEM image of the aluminum nanosheets prepared i...
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