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Preparation method of antimony doped nanometer stannic oxide powder

A nano-tin oxide and powder technology, which is applied in tin oxide, chemical instruments and methods, antimony compounds, etc., can solve the problems of low purity of nano-powder, defects in nano-powder performance, wide particle size distribution range, etc., and achieve Clear boundaries between particles, low production cost, and good electrical conductivity

Active Publication Date: 2018-03-06
广西生富锑业科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are also shortcomings such as low purity of the produced nano-powder, easy agglomeration between particles, and a wide range of particle size distribution.
Moreover, most liquid-phase co-precipitation processes use water as the reaction medium, resulting in obvious defects in the performance of nano-powders

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A preparation method of antimony-doped nano tin oxide powder consists of the following steps:

[0024] (1) Mix antimony trichloride and crystalline tin tetrachloride and dissolve them in ethanol solution, and ultrasonically shake at room temperature for 10 minutes to obtain solution A; dissolve butane tetracarboxylic acid and ammonium dihydrogen phosphate in deionized water in sequence to obtain Solution B; the mass ratio of solution A and solution B is 1:0.05, the molar ratio of antimony trichloride and crystalline tin tetrachloride is 1:7; in solution B, the concentration of butanetetracarboxylic acid is 0.5mol / L , The concentration of ammonium dihydrogen phosphate is 0.05mol / L;

[0025] (2) After mixing Solution A and Solution B, ultrasonically shake at room temperature for 5 minutes, and then add ammonia and diethanolamine under stirring to make the solution pH 8, then heat to 65°C and react for 4 hours to obtain a precipitation precursor;

[0026] (3) Washing, drying and...

Embodiment 2

[0030] A preparation method of antimony-doped nano tin oxide powder consists of the following steps:

[0031] (1) Mix antimony trichloride and crystalline tin tetrachloride and dissolve them in ethanol solution, and ultrasonically shake at room temperature for 20 minutes to obtain solution A; dissolve butane tetracarboxylic acid and ammonium dihydrogen phosphate in deionized water to obtain Solution B; the mass ratio of solution A and solution B is 1:0.1, the molar ratio of antimony trichloride and crystalline tin tetrachloride is 1:6; in solution B, the concentration of butanetetracarboxylic acid is 1.5mol / L , The concentration of ammonium dihydrogen phosphate is 0.1mol / L;

[0032] (2) After mixing solution A and solution B, ultrasonically shake at room temperature for 10 minutes, and then add sodium hydroxide solution and diethanolamine under stirring to make the solution pH 9, then heat to 75°C, react for 2 hours, and obtain the precipitation precursor body;

[0033] (3) Washing...

Embodiment 3

[0037] A preparation method of antimony-doped nano tin oxide powder consists of the following steps:

[0038] (1) Mix antimony pentachloride and crystalline stannous chloride and dissolve them in ethanol solution, and ultrasonically shake at room temperature for 20 minutes to obtain solution A; dissolve butanetetracarboxylic acid and ammonium dihydrogen phosphate in deionized water in sequence to obtain Solution B; The mass ratio of solution A and solution B is 1:0.1, the molar ratio of antimony pentachloride and crystalline stannous chloride is 1:8; in solution B, the concentration of butanetetracarboxylic acid is 1.5mol / L , The concentration of ammonium dihydrogen phosphate is 0.1mol / L;

[0039] (2) After mixing solution A and solution B, ultrasonically shake at room temperature for 10 minutes, and then add sodium hydroxide solution and diethanolamine under stirring to make the solution pH 9, then heat to 75°C, react for 2 hours, and obtain the precipitation precursor body;

[00...

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Abstract

The invention discloses a preparation method of an antimony doped nanometer stannic oxide powder. The preparation method comprises the following steps: (1) mixing an antimonic salt and a tin salt, dissolving in an ethyl alcohol solution, and conducting ultrasonic concussion for 10-20 minutes at the room temperature to obtain a solution A; sequentially dissolving butanetetracarboxylic acid and ammonium dihydrogen phosphate into deionized water to obtain a solution B; (2) mixing the solution A and the solution B, conducting ultrasonic concussion for 5-10 minutes at the room temperature, adding alkali and diethanol amine at the stirring state, enabling the pH of the solution to reach 8-9, heating to 65-75 DEG C, reacting for 2-4 hours to obtain a precipitate precursor; and (3) washing, dryingand calcining the precipitate precursor to obtain the antimony doped nanometer stannic oxide powder. The prepared antimony doped nanometer stannic oxide powder is even in particle size distribution and good in dispersity, the average particle size of the prepared antimony doped nanometer stannic oxide powder is less than 120 nm, the electrical resistivity is less than 25 ohm.cm, the specific surface area is 4-6 m<2> / g, and the electrical conductivity is excellent.

Description

Technical field [0001] The invention relates to the technical field of nano material preparation, in particular to a preparation method of antimony-doped nano tin oxide powder. Background technique [0002] Energy saving and environmental protection have become a topic of global concern today, and energy-saving, environmentally friendly, high-tech products and materials are gradually being favored by people. Nano antimony tin oxide (ATO) is an n-type semiconductor material with a wide energy gap, with optical and physical properties that macro-sized objects do not have. It exhibits high absorptivity, transmittance and reflectivity in the ultraviolet, visible and near-infrared regions in turn. It can be added to various coatings to produce transparent, heat-insulating and anti-static multifunctional This type of material is widely used in energy conservation and environmental protection fields such as construction, electronic communication and catalysis. [0003] The current metho...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G30/00C01G19/02B82Y30/00
CPCB82Y30/00C01G19/02C01G30/005C01P2004/62C01P2004/64C01P2006/12C01P2006/40
Inventor 韦建初韦竣严兰岱龙何正军陆宏卫曹应科卢忠讲
Owner 广西生富锑业科技股份有限公司
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