Preparation method of antimony-doped tin oxide nano-powder

An antimony-doped tin oxide and nano-powder technology is applied in nanostructure manufacturing, nanotechnology, nanotechnology and other directions, which can solve the problems of uneven powder doping, complex process routes, and difficulty in removing impurities, and achieve calcination temperature. Low, simple process, the effect of speeding up the polymerization reaction

Inactive Publication Date: 2010-02-10
SHIJIAZHUANG RAILWAY INST
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0005] The technical problem to be solved in the present invention is to overcome the long production cycle and complex process route in the existing antimony-doped tin oxide nano powder preparation method, the obtained powder is unevenly doped, difficult to remove impurities, and the particle size is not uniform. The disadvantage of uniformity provides a preparation method of antimony-doped tin oxide nanopowder. The method has simple process flow and short cycle, and the prepared powder has uniform particle size distribution and high purity.

Method used

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  • Preparation method of antimony-doped tin oxide nano-powder

Examples

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Embodiment 1

[0018] ① Dissolve 4 parts by weight of acrylic acid in 1 part by weight of deionized water, and fully dissolve under magnetic stirring to obtain solution A;

[0019] ②Fix the ratio of tin tetrachloride and solution A by weight to 5:100, weigh antimony trichloride and tin tetrachloride in a molar ratio of 5:100, add them into the above solution A, and obtain under magnetic stirring Homogeneous system B;

[0020] 3. Under magnetic stirring conditions, the aqueous solution of 5% ammonium persulfate is slowly added to step 2. in the homogeneous system B prepared by weight percentage to obtain solution C; The weight ratio is 0.01:1;

[0021] ④Heat the solution C obtained in step ③ at 100°C for 1h to complete the polymerization of the system; then dry at 80°C for 24h to obtain a solid; after cooling, grind it, then place it in a muffle furnace, and in an air atmosphere at 700°C, After calcining for 3 hours, the light gray blue antimony-doped tin oxide nanopowder was prepared.

[...

Embodiment 2

[0025] ①Dissolve 1 part by weight of acrylic acid in 1 part by weight of deionized water, and fully dissolve under magnetic stirring to obtain solution A;

[0026] ② Fix the ratio of tin tetrachloride and solution A by weight to 1:100, weigh antimony trichloride and tin tetrachloride in a molar ratio of 15:100, add them to the above solution A, and obtain under magnetic stirring Homogeneous system B;

[0027] 3. under magnetic stirring conditions, the deionized aqueous solution of 10% ammonium persulfate by weight percentage is slowly added in step 2. in the homogeneous system B that makes, obtains solution C; The ammonium persulfate added and step 1. in The weight ratio of acrylic acid is 0.05: 1;

[0028] ④Heat the solution C obtained in step ③ at 60°C for 3h to complete the polymerization of the system; then dry at 110°C for 10h to obtain a solid; after cooling, grind it, and then place it in a muffle furnace under the condition of air atmosphere and 450°C. Calcined for 1...

Embodiment 3

[0031] ①Dissolve 2 parts by weight of acrylic acid in 1 part by weight of deionized water, and fully dissolve it under magnetic stirring to obtain solution A;

[0032] ②Fix the weight ratio of tin tetrachloride to solution A at 25:100, weigh antimony trichloride and tin tetrachloride in a molar ratio of 1:100, add them to the above solution A, and obtain a homogeneous solution under magnetic stirring. System B;

[0033] 3. Under magnetic stirring conditions, the aqueous solution of 2% ammonium persulfate is slowly added to step 2. in the homogeneous system B prepared by weight percentage to obtain solution C; The weight ratio is 0.1:1;

[0034] ④Heat the C solution obtained in step ③ at 80°C for 0.1 hour to complete the polymerization of the system; then dry it at 150°C for 5 hours to obtain a solid; after cooling, grind it, and then place it in a muffle furnace, under the condition of air atmosphere and 900°C After calcination for 1 h, the light gray blue antimony-doped tin...

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Abstract

The invention discloses a preparation method of antimony-doped tin oxide nano-powder, which belongs to the field of preparation of nanomaterials. The preparation method comprises the following steps:(1) mixing propenoic acid with water according to the ratio of 1-4:1 in parts by weight, and obtaining solution A; (2) weighing soluble antimony salt and tin salt, adding into the solution A, dissolving and obtaining a homogeneous system B, wherein, the ratio of Sb<3+>: Sn<4+> by molar fraction is 1-15:100, and the ratio of tin salt: solution A in parts by weight is 1-25:100; (3) adding water solution of peroxide initiator with weight content of 2-10% into the homogeneous system B for obtaining solution C under the stirring condition; and (4) heating the solution C for 0.1-3h at the temperature of 60-100 DEG C, then drying at the temperature of 80-150 DEG C for obtaining solids, grinding after cooling, and calcining for 1-10h in an air atmosphere at the temperature of 450-900 DEG C. The method has simple process flow, and the prepared powder has even distribution of particle size and higher purity.

Description

technical field [0001] The invention relates to a preparation method of nanomaterials, in particular to a preparation method of antimony-doped tin oxide nanopowder, which can be used in the fields of transparent heat-insulating coatings, antistatic materials and the like. Background technique [0002] Antimony doped tin oxide material Antimony Doped Tin Oxide, referred to as ATO, is a new type of multifunctional material that has developed rapidly in recent years. Good stability, corrosion resistance, good mechanical stability, surface adsorption of oxygen and carbon monoxide, etc., used in solar conversion batteries, smart windows, electrochromic materials, antistatic plastics / chemical fibers / coatings, anti-radiation antistatic coating materials for displays , infrared absorption insulation materials, gas sensors, electrode materials and other aspects have been widely used. [0003] The development of nanotechnology has further broadened the application range of ATO. For e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B82B3/00
Inventor 王建雷李元庆梅世刚张光磊洪珊珊张建民
Owner SHIJIAZHUANG RAILWAY INST
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