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Method for preparing tin antimony oxide nanometer powder in low-temperature ball-milling way

A nano-powder, tin-antimony oxide technology, applied in the direction of nanotechnology, nanotechnology, nanotechnology for materials and surface science, etc., can solve problems that are not suitable for large-scale industrial production, difficult to dope, uniform and controllable, and serious agglomeration and other problems, to achieve the effect of small agglomeration, uniform and controllable doping, and low agglomeration

Inactive Publication Date: 2013-04-17
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In summary, the tin antimony oxide nanopowders prepared by existing methods mainly have the following disadvantages: low purity, serious agglomeration, it is difficult to achieve uniform and controllable doping, and it is not suitable for large-scale industrial production

Method used

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  • Method for preparing tin antimony oxide nanometer powder in low-temperature ball-milling way
  • Method for preparing tin antimony oxide nanometer powder in low-temperature ball-milling way
  • Method for preparing tin antimony oxide nanometer powder in low-temperature ball-milling way

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Use high-purity tin oxide powder and antimony oxide powder with a particle size of 200 mesh as the raw material powder, and configure the raw material with the atomic ratio of antimony element and tin element at 20:80, and mix the zirconia grinding ball with a diameter of 5mm and the raw material powder according to the weight ratio of the ball material Add 10:1 into the ball milling tank; feed liquid nitrogen into the ball milling tank, immerse the raw material powder and zirconia balls in the liquid nitrogen, and keep the liquid level stable; start ball milling at constant temperature for 30 minutes, control the ball milling time for 6 hours and ball milling The rotation speed is 600 rpm, and the temperature in the ball mill tank is -180°C; the powder after ball milling is placed in an environment of 50°C for nitrogen desorption treatment for 3 hours, and the obtained tin antimony oxide nanopowder is collected, antimony doped The content is 20at.%, and the average grai...

Embodiment 2

[0034] Use high-purity tin oxide powder and antimony oxide powder with a particle size of 400 mesh as raw material powder, and configure the raw material with an atomic ratio of antimony element to tin element of 10:90, and mix zirconia grinding balls with a diameter of 5mm and raw material powder according to the weight ratio of the ball and material Add 20:1 into the ball milling tank; feed liquid nitrogen into the ball milling tank, immerse the raw material powder and zirconia balls in the liquid nitrogen, and keep the liquid level stable; start ball milling at constant temperature for 30 minutes, control the ball milling time for 6 hours and ball milling The rotation speed is 300 rpm, and the temperature in the ball mill tank is -185°C; the powder after ball milling is placed in an environment of 100°C for nitrogen desorption treatment for 2 hours, and the obtained tin antimony oxide nanopowder is collected, antimony doped The content is 10at.%, and the average grain size i...

Embodiment 3

[0038] Use high-purity tin oxide powder and antimony oxide powder with a particle size of 200 mesh as the raw material powder, and configure the raw material with an atomic ratio of antimony element to tin element of 30:70, and mix the zirconia grinding ball with a diameter of 5mm and the raw material powder according to the weight ratio of the ball material Add 20:1 into the ball milling tank; feed liquid nitrogen into the ball milling tank, immerse the raw material powder and zirconia balls in the liquid nitrogen, and keep the liquid level stable; start ball milling at constant temperature for 30 minutes, control the ball milling time for 4 hours and ball milling The rotation speed is 600 rpm, and the temperature in the ball mill tank is -180°C; the powder after ball milling is placed in an environment of 200°C for nitrogen desorption treatment for 0.5 hours, and the obtained tin antimony oxide nanopowder is collected, antimony doped The content is 30 at.%, and the average gr...

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Abstract

The invention relates to a method for preparing tin antimony oxide nanometer powder in a low-temperature ball-milling way. The method comprises the steps as follows: taking high-purity tin oxide powder and antimony oxide powder with purity of 99.9 and particle size of 50-500 meshes as initial raw materials; mixing the raw materials according to the condition that the atomic ratio of antimony to tin ranges from 1:99 to 30:70; adopting liquid nitrogen as a ball-milling medium and a zirconium oxide ball as a grinding ball; performing the low-temperature ball-milling operation; controlling the ball-milling time to be 1-48 h, the ball-milling rotation speed to be 100-1000 r / min and the ball-milling ratio to range from 10:1 to 100:1; and preparing the tin antimony oxide nanometer powder with high purity, low agglomeration rate and particle size of 10-100 nm, and the tin antimony oxide nanometer powder is uniformly doped with 1-30% of other elements by atom percent. The method is simple in process and low in cost, and can be used for industrial scale continuous production; and the prepared tin antimony oxide nanometer powder has the advantages of high purity, low agglomeration rate, uniformity and controllability for doping and the like, and can be widely applied to the fields of solar cells, infrared absorption thermal insulation materials and the like.

Description

technical field [0001] The invention relates to a method for tin antimony oxide nanopowder and belongs to the technical field of nanomaterial preparation. It can be used in solar cells, electrochromic materials, anti-radiation and antistatic coating materials, infrared absorption and heat insulation materials, electrode materials and other fields. Background technique [0002] Antimony Doped Tin Oxide (ATO) is a new type of multi-functional material that has developed rapidly in recent years. In addition to good electrical conductivity and optical properties, it also has a high melting point (about Corrosion, thermal stability and other advantages, widely used in solar cells, electrochromic materials, anti-radiation antistatic coating materials, infrared absorption heat insulation materials, electrode materials, etc. Antimony tin oxide nanopowders have attracted the attention of researchers at home and abroad because of their smaller particle size and higher specific surfac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B02C17/10B02C17/18B02C23/24B82Y30/00B82Y40/00
Inventor 张联盟吴俊彦陈斐沈强罗国强王传彬
Owner WUHAN UNIV OF TECH
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