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A kind of synthetic method of nanometer yttrium oxide powder
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A technology of nano-yttrium oxide and synthesis method, which is applied in the field of synthesis of nano-yttrium oxide powder, and can solve the problems of easy agglomeration and difficult separation of powder
Inactive Publication Date: 2016-09-28
GUANGXI UNIVERSITY OF TECHNOLOGY
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Problems solved by technology
[0003] In recent years, extensive research has been carried out on the preparation of nano-yttrium oxide powder at home and abroad. The main preparation methods include sol-gel method, vapor deposition method, microemulsion method and hydrothermal method. The hydrothermal method has the advantages of simple process and low equipment cost. The advantage of being low, but the generated powder is easy to agglomerate and difficult to separate
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Embodiment 1
[0014] A kind of synthetic method of nanometer yttrium oxide powder, comprises the steps:
[0015] (1) First, add tetramethylene glycol to the 0.2mol / L yttrium acetate solution, and add tetramethylene glycol according to 1% of the mass of yttrium acetate, and stir evenly;
[0016] (2) Add saturated sodiumhydroxide solution to the solution in step (1), adjust the pH of the solution to 11, and then react at 180°C for 24 hours;
[0017] (3) After the reaction, the reaction solution was filtered, and the filter residue was washed with water for 6 times, dried in vacuum for 4 hours, and then calcined at 600° C. for 1 hour to obtain nanometer yttrium oxide powder.
Embodiment 2
[0019] A kind of synthetic method of nanometer yttrium oxide powder, comprises the steps:
[0020] (1) First, add tetramethylene glycol into the 0.1mol / L yttrium acetate solution, and add tetramethylene glycol according to 5% of the mass of yttrium acetate, and stir evenly;
[0021] (2) Add saturated sodiumhydroxide solution to the solution in step (1), adjust the pH of the solution to 13, and then react at 200°C for 24 hours;
[0022] (3) After the reaction, the reaction solution was filtered, and the filter residue was washed with water for 6 times, dried in vacuum for 4 hours, and then calcined at 600° C. for 1 hour to obtain nanometer yttrium oxide powder.
Embodiment 3
[0024] A kind of synthetic method of nanometer yttrium oxide powder, comprises the steps:
[0025] (1) First, add tetramethylene tetrol to the 0.05mol / L yttrium acetate solution, and add tetramethylene tetrol according to 2% of the mass of yttrium acetate, and stir evenly;
[0026] (2) Then add saturated sodium hydroxide solution to the solution in step (1), adjust the pH of the solution to 12, and then react at 180°C for 24 hours;
[0027] (3) After the reaction, the reaction solution was filtered, and the filter residue was washed with water for 6 times, dried in vacuum for 4 hours, and then calcined at 620° C. for 1 hour to obtain nanometer yttrium oxide powder.
[0028] The method of the invention is easy to separate, and the obtained nanometer yttrium oxide powder is spherical with uniform appearance, and the particle diameter can be controlled at 40-50nm.
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Abstract
The invention discloses a method for synthesizing nanometer yttriumoxidepowder, which comprises the following steps: (1) firstly adding tetramethylene glycol into the yttrium acetate solution; (2) adding sodiumhydroxide solution into the solution in step (1), Adjust the pH of the solution to 11-13, then react at 170-200°C for 20-30 hours; (3) filter the reaction solution in step (2), wash, dry and calcinate the filter residue to obtain nano-yttriumoxidepowder. Compared with the existing method, the nano-yttrium oxidepowder obtained by the method of the present invention is spherical with uniform appearance, and the particle size can be controlled at 40-50nm.
Description
technical field [0001] The invention relates to a method for synthesizing nanometer yttrium oxide powder. Background technique [0002] Yttrium oxide (Y 2 o 3 ) is an important rare earth compound with unique heat resistance, corrosion resistance, high dielectric constant and a series of excellent optical properties, and is widely used in advanced ceramics, optoelectronic devices, catalysts and other fields. [0003] In recent years, extensive research has been carried out on the preparation of nano-yttrium oxide powder at home and abroad. The main preparation methods include sol-gel method, vapor deposition method, microemulsion method and hydrothermal method. The hydrothermal method has the advantages of simple process and low equipment cost. The advantage of being low, but the generated powder is easy to agglomerate and difficult to separate. Contents of the invention [0004] The technical problem to be solved by the invention is to overcome the existing defects and...
Claims
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Application Information
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