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Process for preparing multiple ATO nanometer structure

A nanostructure and ATO technology, applied in the direction of tin oxide, etc., can solve the problems of ATO nano-products with single shape, complex process, high production cost, etc., and achieve the effect of low requirements on reaction conditions, simple process flow and single raw material

Inactive Publication Date: 2007-05-16
GUANGXI UNIV FOR NATITIES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] 1. There are many types of raw materials required, and the process is more complicated;
[0006] 2. High energy consumption and high production cost;
[0007] 3. The morphology of the prepared ATO nano-products is single

Method used

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  • Process for preparing multiple ATO nanometer structure
  • Process for preparing multiple ATO nanometer structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] Place a ceramic boat containing 3 g of mixed powder (the mass ratio of graphite to ATO is 1:6) in the middle of the ceramic tube, and three silicon chips are placed in another ceramic boat and placed downstream of the carrier gas in the ceramic tube, as shown in Figure 1 . Before heating, flow argon gas with a flow rate of 100 sccm into the system from one end of the ceramic tube for about 1 hour to remove the air in the ceramic tube, then set the reaction temperature to 1150°C, the reaction time is 1.5 hours, and the argon gas flow rate during heating is 50 sccm. After the reaction was completed, the system was naturally cooled to room temperature and the products obtained on three silicon wafers were collected. Observation with a scanning electron microscope revealed that the morphology of the products in different deposition areas was different. The product in region I in Fig. 1 is a solid nanosphere, as shown in Fig. 4 . Region II is nanorods, as shown in Fig. 5(a)...

Embodiment 2

[0052] A ceramic boat containing 3 g of mixed powder (the mass ratio of graphite to ATO is 1:6) was placed in the middle of the ceramic tube, and the ceramic boat filled with silicon wafers was placed about 10 cm away from the medicine. After heating, put argon gas with a flow rate of 100 sccm into the system for about 1 hour to remove the air in the tube, then set the reaction temperature to 1000 ° C, the reaction time is 1.0 h, and the argon gas flow rate is 30 sccm during heating. After the reaction is over, the system is naturally cooled to room temperature The product obtained on the silicon wafer was collected, its morphology was observed by field emission scanning electron microscope (FESEM), and its composition and content were investigated by X-ray diffraction (XRD) and energy spectrum (EDS). The deposits on the silicon wafer were found to be nano-solid spheres by scanning electron microscope observation, as shown in FIG. 4 .

Embodiment 3

[0054] A ceramic boat containing 3 g of mixed powder (the mass ratio of activated carbon to ATO is 1:3) was placed in the middle of the ceramic tube, and the ceramic boat filled with silicon wafers was placed about 10 cm away from the medicine. After heating, let the argon gas with a flow rate of 100 sccm into the system for about 1 hour to remove the air in the tube, then set the reaction temperature to 1050°C, the reaction time is 2.0 hours, and the argon gas flow rate is 50 sccm during heating. After the reaction is over, the system is naturally cooled to room temperature The obtained product was collected, its morphology was observed by field emission scanning electron microscope (FESEM), and its composition and content were investigated by X-ray diffraction (XRD) and energy spectrum (EDS). The deposits on the silicon wafer were found to be nanorods by scanning electron microscope observation, as shown in Figure 5(a).

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Abstract

The invention discloses a preparing method of ATO nanometer solid ball, bar and hollow ball, which comprises the following steps: adopting elemental carbon powder and nanometer ATO powder as raw material; making Ar as carrier gas; using CVD method; setting the heating temperature at 1000-1200 Deg C for 1.0-2.5h; reacting with argon with flow quantity at 30-70sccm to obtain the product.

Description

technical field [0001] The invention relates to a method for reducing ATO nano particles with elemental carbon and preparing ATO nano solid spheres, ATO nano hollow spheres and ATO nano rods by chemical vapor deposition (CVD). Background technique [0002] Antimony doped Tin Oxide (ATO) nanomaterial is a new type of functional conductive material that has developed rapidly in recent years. In addition to good electrical conductivity and optical properties, it also has good weather resistance and chemical stability. As well as anti-radiation, infrared absorption and other advantages, it has a wide range of applications in antistatic plastics, chemical fibers, coatings, papermaking, packaging, building materials, photoelectric displays, transparent conductive electrodes, heat insulation windows, solar cells, catalysts and infrared absorption materials. application. Therefore, the preparation of ATO nanomaterials has become one of the research hots...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G19/02
Inventor 黄在银柴春芳吴健周泽广袁爱群谭学才
Owner GUANGXI UNIV FOR NATITIES
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