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Preparation method of nano ato powder

A powder and nanotechnology, applied in the field of nanomaterials preparation, can solve the problems of high resistivity, large particle size of antimony-doped nano-tin dioxide powder, uneven distribution of dopants, etc., and achieve small resistivity and particle size. The effect of small diameter distribution range

Active Publication Date: 2018-08-31
柳州呈奥科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing methods to obtain antimony-doped nano-tin dioxide powder have disadvantages such as large particle size, uneven distribution of dopants, and high resistivity.

Method used

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  • Preparation method of nano ato powder

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A preparation method of nanometer ATO powder, comprising:

[0023] Step 1, take by weighing antimony chloride and tin chloride according to the molar ratio of 1:10, dissolve with dehydrated alcohol, and add ethylene glycol, obtain mixed solution; Wherein, the use amount of dehydrated alcohol is the quality of tin chloride 20 times, the amount of ethylene glycol added is 100 times the mass of tin chloride;

[0024] Step 2, divide the mixed solution into three equal parts, put them into the first reactor, the second reactor and the third reactor respectively, and check the temperature in the first reactor, the second reactor and the third reactor Maintained at 20°C, the first reactor, the second reactor and the third reactor communicate with the fourth reactor through the first liquid spray pipe, the second liquid spray pipe and the third liquid spray pipe respectively. A liquid spray pipe, the second liquid spray pipe and the third liquid spray pipe are respectively pro...

Embodiment 2

[0032] A preparation method of nanometer ATO powder, comprising:

[0033] Step 1, take by weighing antimony chloride and tin chloride according to the molar ratio of 1:10, dissolve with dehydrated alcohol, and add ethylene glycol, obtain mixed solution; Wherein, the use amount of dehydrated alcohol is the quality of tin chloride 30 times, the amount of ethylene glycol added is 200 times the mass of tin chloride;

[0034] Step 2, divide the mixed solution into three equal parts, put them into the first reactor, the second reactor and the third reactor respectively, and check the temperature in the first reactor, the second reactor and the third reactor Maintained at 40°C, the first reactor, the second reactor and the third reactor communicate with the fourth reactor through the first liquid spray pipe, the second liquid spray pipe and the third liquid spray pipe respectively, and the first A liquid spray pipe, the second liquid spray pipe and the third liquid spray pipe are re...

Embodiment 3

[0042]A preparation method of nanometer ATO powder, comprising:

[0043] Step 1, take by weighing antimony chloride and tin chloride according to the molar ratio of 1:10, dissolve with dehydrated alcohol, and add ethylene glycol, obtain mixed solution; Wherein, the use amount of dehydrated alcohol is the quality of tin chloride 25 times, the amount of ethylene glycol added is 150 times the mass of tin chloride;

[0044] Step 2, divide the mixed solution into three equal parts, put them into the first reactor 1, the second reactor 2 and the third reactor 3 respectively, and put the first reactor 1, the second reactor 2 and the third reactor The temperature in the reactor 3 is maintained at 35° C., and the first reactor 1, the second reactor 2 and the third reactor 3 communicate with each other through the first liquid spray pipe, the second liquid spray pipe and the third liquid spray pipe respectively. The fourth reaction kettle 4 is connected, and the first liquid spray pipe...

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Abstract

The invention discloses a preparation method of nano ATO powder. The preparation method comprises the following steps of: weighing antimony chloride and stannic chloride in a molar ratio of 1:10, dissolving the two with absolute ethyl alcohol and adding ethylene glycol; equally dividing the mixed solution into three parts, and separately placing the three parts in a first reaction kettle, a second reaction kettle and a third reaction kettle; switching off three valves, introducing ammonia gas into a fourth reaction kettle till the pressure is 120KPa, introducing air into the first, second and third reaction kettles till the pressures are 300KPa, and then switching on the three valves; raising the temperature of the fourth reaction kettle to 40-50 DEG C and keeping the temperature for 1-1.5h, then raising the temperature to 60-70 DEG C and keeping the temperature for 30-40 minutes, taking out the mixed solution, filtering the same, washing and drying the obtained filter cake with absolute ethyl alcohol to obtain a precursor; and calcining the precursor. Antimony-doped nano stannic oxide powder obtained by the preparation method is small in grain size, the dopant is uniformly distributed, and the resistivity is low.

Description

technical field [0001] The invention relates to a preparation method of nanometer material. More specifically, the present invention relates to a preparation method for antimony-doped nano tin dioxide powder. Background technique [0002] Tin dioxide is a wide bandgap semiconductor material. When O vacancies are generated or doped with F, Sb and other elements, it forms an N-type semiconductor. It has special optical and electrical properties and has been widely studied. Among them, antimony-doped tin oxide (ATO) nanomaterials have become a new type of functional material that has developed rapidly in recent years due to their excellent transparency, heat insulation, electrical conductivity and gas sensitivity. They are used in antistatic plastics, chemical fibers, Coatings, optoelectronic devices, transparent electrodes, solar cells, gas sensors, infrared absorption and other fields have a wide range of applications. However, the existing method to obtain antimony-doped n...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01G19/02B82Y40/00B82Y30/00
CPCC01G19/02C01P2004/64C01P2004/80C01P2006/40
Inventor 易鉴荣唐臻林荔珊
Owner 柳州呈奥科技有限公司
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