Preparation method of blue nanometer tin indium oxide powder

A nano-indium tin oxide and blue technology, applied in tin oxide, chemical instruments and methods, nanotechnology, etc., can solve the problems of solvent waste, unstable reaction pressure, poor crystallinity, etc., and achieve cost saving and simple equipment requirements , Conducive to the effect of industrial production

Active Publication Date: 2014-05-07
烟台佳隆纳米产业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The solvothermal method mainly uses alcohols as solvents to react in an autoclave. This method has the advantages of low reaction temperature and uniform powder performance, but its crystallinity is poor, and the dehydration of hydroxide into the solvent makes the solvent waste. unstable

Method used

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  • Preparation method of blue nanometer tin indium oxide powder
  • Preparation method of blue nanometer tin indium oxide powder

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A preparation method of blue nano indium tin oxide powder, comprising the following steps:

[0028] 1) Add InCl 3 and anhydrous SnCl 4 It is 0.2mol / L solution that the concentration of metal ion is mixed with distilled water, then the ammoniacal liquor that molarity is 0.2mol / L is dissolved in distilled water to make alkaline solution, then the described alkaline solution that makes is with the concentration of 10ml / min Add dropwise to the 0.2mol / L solution at a dropping rate, and keep stirring, control the reaction temperature to 60°C, stop dropping when PH=7.1, continue to react for 30 minutes, and prepare a white indium tin oxide precursor;

[0029] 2) Wash the white indium tin oxide precursor prepared in step 1) three times with water and twice with ethanol, and then put it into a drying oven for drying at a temperature of 60°C. Grinding to obtain intermediate product B;

[0030] 3) Put the intermediate product B obtained in step 2) into a crucible, and then put ...

Embodiment 2

[0035] A preparation method of blue nano indium tin oxide powder, comprising the following steps:

[0036] 1) Add InCl 3 and anhydrous SnCl 4 It is mixed with distilled water to make a metal ion concentration of 0.2mol / L solution, then the urea with a molar concentration of 1mol / L is dissolved in distilled water to make an alkaline solution, and then the alkaline solution made is dripped at 50ml / min Add it dropwise to the 0.2mol / L solution at an accelerated rate, and keep stirring, control the reaction temperature to 60°C, stop the dropwise addition when PH=7.1, and continue the reaction for 30 minutes to prepare a white indium tin oxide precursor;

[0037] 2) Wash the white indium tin oxide precursor prepared in step 1) three times with water and twice with ethanol, and then put it into a drying oven for drying at a temperature of 80°C. Grinding to obtain intermediate product B;

[0038] 3) Put the intermediate product B obtained in step 2) into a crucible, and then put it...

Embodiment 3

[0043] A preparation method of blue nano indium tin oxide powder, comprising the following steps:

[0044] 1) Add InCl 3 and anhydrous SnCl 4 It is 0.2mol / L solution that metal ion concentration is mixed with distilled water, then the aqueous solution of ammonium bicarbonate that molar concentration is 0.5mol / L is dissolved in distilled water to make alkaline solution, then the described alkaline solution that makes is with Add dropwise at a rate of 10-50ml / min into the solution with a concentration of 0.2mol / L, and keep stirring, control the reaction temperature at 60°C, stop dropping when PH=7.1, continue to react for 30 minutes, and obtain white oxide Indium tin precursor;

[0045] 2) Wash the white indium tin oxide precursor prepared in step 1) three times with water and twice with ethanol, and then put it into a drying oven for drying at a temperature of 70°C. Grinding to obtain intermediate product B;

[0046] 3) Put the intermediate product B obtained in step 2) int...

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Abstract

The invention relates to a preparation method of blue nanometer tin indium oxide powder. The preparation method comprises the following steps: (1) adopting a weakly alkaline precipitant for titrating an indium and tin compound aqueous solution and enabling the indium and tin compound aqueous solution to uniformly precipitate; (2) washing an ITO precursor with water for three times, washing with alcohol for two times, drying, then grinding, putting in a crucible, feeding in a muffle furnace, and carrying out calcination treatment to obtain yellow ITO; and (3) adding the yellow powder obtained by calcination to ethylene alcohol, carrying out emulsification dispersion, feeding into a high-pressure autoclave, carrying out thermal treatment, centrifuging so as to obtain ITO precipitates, washing with alcohol, and drying so as to obtain the blue ITO powder. The preparation method has the advantages that the weakly alkaline precipitant is used for reaction, and the reaction speed is controlled, so that the obtained precursor is relatively fine; and the protective gas sintering is avoided, required equipment is simple, and the powder does not need to be made thinner.

Description

technical field [0001] The invention relates to a preparation method of blue nano indium tin oxide powder. Background technique [0002] Indium tin oxide (ITO), as a transparent conductive material with excellent performance, is widely used in electronic displays, transparent electrodes, solar cells, electroluminescent devices, antistatic and other fields. In these fields, the quality of ITO target material synthesis affects its practical application, and the preparation of target material ITO powder is also particularly important. The preparation of high-performance ITO powder will help the sintering of ITO targets and reduce defects. In addition, ITO also has the characteristics of high transparency and infrared blocking, which makes it widely used in transparent heat insulation and transparent antistatic coatings. [0003] At present, there are two main methods for preparing blue ITO powder: protective atmosphere calcination method and solvothermal method. Patent No. C...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G19/02C01G15/00B82Y40/00
Inventor 冯志强李宁盛振宏刘力娜徐斌王茂智王晓华
Owner 烟台佳隆纳米产业有限公司
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