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Method for preparing nanometer stannous oxide and nanometer stannic oxide

A nano-tin dioxide and stannous oxide technology, applied in tin oxide, nanotechnology and other directions, can solve the problems of complex preparation process, high raw material cost, difficulty in synthesizing stannous oxide, etc., and achieves high purity, good sample crystallinity, The effect of good application prospects

Inactive Publication Date: 2013-12-11
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to the metastable characteristics of stannous oxide, it is difficult to synthesize stannous oxide by wet chemical method.
And for the preparation of stannous oxide and tin dioxide, expensive refined tin or stannous oxide hydrate with complex synthesis process are commonly used as raw materials, which have the problems of high raw material cost and complicated preparation process

Method used

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  • Method for preparing nanometer stannous oxide and nanometer stannic oxide
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  • Method for preparing nanometer stannous oxide and nanometer stannic oxide

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Embodiment 1

[0018] The process of embodiment 1 synthesis nano tin protooxide

[0019] The synthesis process is carried out under anaerobic conditions and can be Figure 6 The shown can provide anaerobic Schlenk system. The specific synthesis process is as follows:

[0020] Put 0.0169g of stannous oxide powder, 1mL of oleic acid and 5mL of oleylamine into a 50mL three-neck bottle, then plug the two sides of the three-neck bottle with rubber stoppers, connect the middle port to the Schlenk system, and let in nitrogen , replace the air in the three-necked bottle, make the three-necked bottle full of nitrogen, and the gas pressure in the bottle is slightly higher than atmospheric pressure, then insert the thermocouple from the side port of the three-necked bottle under the liquid surface, heat and stir to make The solution in the bottle gradually dissolves to form a Sn-ligand complex solution. When the temperature continued to rise to 250°C, the color of the solution gradually became grayi...

Embodiment 2

[0022] The process of embodiment 2 synthesizing nanometer tin dioxide

[0023] The process of synthesizing nano-tin dioxide is simpler than the process of synthesizing nano-tin oxide in Example 1. Put 0.0169g of stannous oxide powder, 1mL of oleic acid and 5mL of oleylamine into a 50mL three-necked bottle, then plug the two sides of the three-necked bottle with rubber stoppers, and connect the middle port to the Schlenk system without ventilating Inject nitrogen gas, insert a thermocouple from the side port of the three-necked bottle under the liquid surface, stir and heat the solution in the bottle to gradually dissolve to form a Sn-ligand complex solution. When the temperature continued to rise to 300°C, the solution gradually became cloudy, and pure nano-tin dioxide was produced at this time. Take out the sample 10 minutes after the reaction, wash the sample 3 times with a mixed solution of methanol and acetone with a volume ratio of 1:1, and finally obtain nanometer tin d...

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Abstract

The invention discloses a method for preparing nanometer stannous oxide and nanometer stannic oxide, belonging to the technical field of nanometer material preparation. According to the invention, block stannous oxide is used as a raw material, oleic acid and oleylamine is used as ligands, and nanometer stannous oxide and nanometer stannic oxide are synthetized through simply changing the reaction environment. The method comprises the specific steps of: under the protection of nitrogen, heating and stirring to ensure that block stannous oxide is gradually dissolved to obtain a stannum-ligand composite solution, carrying out thermal decomposition when the temperature is raised to 260 DEG C to obtain nanometer stannous oxide; and in an air environment, heating and stirring to ensure that block stannous oxide is gradually dissolved to obtain the stannum-ligand composite solution and carrying out thermal decomposition when the temperature is raised to 300 DEG C to obtain nanometer stannic oxide. The products prepared by utilizing the method disclosed by the invention are high in purity, good in crystallinity, uniform in particle diameter distribution and good in monodispersity; synthetized stannous oxide also has good air stability; and because of simple and available raw material, simple preparation process, short production cycle, high repeatability, the method disclosed by the invention has the potential of large-scale production.

Description

technical field [0001] The invention belongs to the technical field of nanometer material preparation, in particular to a method for preparing nanometer stannous oxide and nanometer tin dioxide. Background technique [0002] Among many functional materials, stannous oxide and tin dioxide have received widespread attention as important semiconductor materials. SnO is an excellent P-type oxide semiconductor material, often used as a reducing agent and catalyst, and also used to prepare stannous salts and battery electrode materials; SnO is also widely used in electroplating and glass industries. However, stannous oxide itself is a metastable substance that does not exist in nature. Therefore, the preparation of stannous oxide nanomaterials is of great significance. Tin dioxide is an important N-type broadband semiconductor material, which can be used as a photocatalyst, gas-sensitive material and transparent conductive electrode, and plays an important role in the fields of d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01G19/02B82Y40/00
Inventor 邹勃张品华王英楠邹广田
Owner JILIN UNIV
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