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A mesoporous spherical flower-shaped yttrium oxide and zinc oxide composite material and its preparation method

A technology of composite materials and zinc oxide, applied in chemical instruments and methods, zinc oxide/zinc hydroxide, rare earth metal compounds, etc., can solve the problems of unsuitability for large-scale production, harsh preparation conditions, long reaction time, etc., and achieve preparation The conditions are flexible and not harsh, the process is simple, and the effect of expanding the scope of application

Active Publication Date: 2017-01-11
CHINA PETROLEUM & CHEM CORP +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to overcome the disadvantages of prior art methods for synthesizing yttrium oxide composite materials that require higher temperature and longer reaction time, complicated process, high energy consumption, harsh preparation conditions, and not suitable for large-scale production , providing a preparation method of mesoporous spherical flower-shaped yttrium oxide and zinc oxide composite material

Method used

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  • A mesoporous spherical flower-shaped yttrium oxide and zinc oxide composite material and its preparation method
  • A mesoporous spherical flower-shaped yttrium oxide and zinc oxide composite material and its preparation method
  • A mesoporous spherical flower-shaped yttrium oxide and zinc oxide composite material and its preparation method

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preparation example Construction

[0017] According to a method for preparing a mesoporous bulb-shaped yttrium oxide and zinc oxide composite material provided by the present invention, the method may include the following steps: (1) Dispersing zinc oxide in alcohol, and combining the alcohol in the dispersed suspension Evaporate to dryness to obtain zinc oxide nano powder; (2) dissolve the zinc oxide nano powder in the yttrium nitrate solution and cause a hydrothermal reaction.

[0018] According to the present invention, the concentration of the yttrium nitrate solution cannot be too high or too low. If the concentration of the yttrium nitrate solution is too high or too low, the dissolution of zinc oxide cannot be guaranteed. Therefore, in the present invention, it is necessary to strictly control all The concentration of the yttrium nitrate solution, the concentration of the yttrium nitrate solution may be 0.1-0.5M, the concentration of the yttrium nitrate solution is within this range, the zinc oxide can be di...

Embodiment 1

[0035] Disperse 0.02 g of ZnO with a particle size of 100 nm in 20 ml of ethanol solution, and evaporate the ethanol in the dispersed suspension after ordinary ultrasonic dispersion for 10 minutes to prepare zinc oxide nanopowder with a particle size of 50 nm;

[0036] Put 0.02g of the above-prepared zinc oxide nanopowder into a yttrium nitrate solution with a concentration of 0.1M and a volume of 30ml. After a hydrothermal reaction for 2.5 hours, a mesoporous sphere with a diameter of 3 microns and a pore diameter of 10 nanometers can be obtained. Flower-shaped yttrium oxide / zinc oxide composite structure, its morphological structure is like figure 1 As shown; and in the mesoporous bulb-shaped yttrium oxide and zinc oxide composite material, the content of yttrium oxide is 85% by weight, and the content of zinc oxide is 15% by weight; the method has simple process, low energy consumption, and preparation conditions Flexible and not harsh, and suitable for mass production.

Embodiment 2

[0038] Disperse 0.05 g of ZnO with a particle size of 500 nm in 50 ml of ethanol solution, and evaporate the ethanol in the dispersed suspension after ordinary ultrasonic dispersion for 20 minutes to prepare zinc oxide nanopowder with a particle size of 200 nm;

[0039] Put 0.05g zinc oxide nanopowder into 0.2M yttrium nitrate solution with a volume of 30ml. After 2.5 hours of hydrothermal reaction, a mesoporous bulbous yttrium oxide with a diameter of 5 microns and a maximum pore diameter of 100 nanometers can be obtained. / Zinc oxide composite structure, its morphological structure such as figure 2 As shown; and in the mesoporous bulb-shaped yttrium oxide and zinc oxide composite material, the content of yttrium oxide is 70% by weight, and the content of zinc oxide is 30% by weight; the method has simple process, low energy consumption, and preparation conditions Flexible and not harsh, and suitable for mass production.

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Abstract

The invention discloses a preparation method of a mesoporous ball follow-shaped yttrium oxide-zinc oxide composite material. The method comprises the following steps: (1) carrying out ultrasonic treatment on an alcohol solution of a zinc oxide powder, and steaming to dry; and (2) dissolving the zinc oxide nano powder obtained in the step (1) in an yttrium nitrate solution, and carrying out a hydrothermal reaction under a stirring condition. According to the method, the hydrothermal reaction temperature and time are reduced, a synthetic morphology is good, a crystalline form is more complete, and the size is more uniform; the method is simple in process, low in energy consumption, flexible in preparation conditions, and suitable for mass production; the method omits a template removal step and a thin film transfer step, and effectively avoids damage on a material thin film structure and orientation in the process; and in addition, in consideration of no special requirements of the method provided by the invention on a substrate, the application range of the material in devices is greatly expanded, and the method is a material synthetic method having practical application values.

Description

Technical field [0001] The present invention relates to the field of material preparation. More specifically, the present invention relates to a method for preparing a mesoporous bulbous yttrium oxide and zinc oxide composite material, and a mesoporous bulbous yttrium oxide and zinc oxide composite material prepared by the preparation method. Background technique [0002] The size and shape of the material directly affect the performance and application of the material. In recent years, the small particle size and high specific surface area have brought tremendous changes and rapid development of materials in the fields of optics, thermals, and catalysis. With the continuous development of zero-dimensional, one-dimensional and two-dimensional nanomaterials, three-dimensional self-assembled structures composed of nanoparticles, nanowires, and nanosheets as basic units have also attracted more and more attention and research. [0003] Yttrium oxide is an important cheap rare earth c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01G9/02C01F17/00B82Y30/00B82Y40/00
CPCB82Y30/00B82Y40/00C01G9/02C01P2004/64
Inventor 冯英杰姜健准张明森杨菁张伟
Owner CHINA PETROLEUM & CHEM CORP