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Preparation method of SnS3 nano powder

A nano-powder and powder technology, which is applied in the field of SnSe nano-powder preparation, can solve the problems of reactants being oxidized and reactants not fully reacting, and achieve the effects of short synthesis time, strong practicability and simple process

Inactive Publication Date: 2015-01-21
BEIHANG UNIV
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

As for problems such as insufficient reaction of reactants and oxidation of reactants that are prone to occur in the mechanical alloying method, the present invention provides a solution

Method used

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  • Preparation method of SnS3 nano powder
  • Preparation method of SnS3 nano powder

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Embodiment Construction

[0014] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0015] The invention provides a preparation method of SnSe nano powder. In the preparation method, a mechanical alloying method is adopted. First, the high-purity Sn and Se elemental powders are mixed according to the atomic ratio of 1:1, and put together into a planetary ball mill. Mechanical alloying is carried out under the protection of inert gas (argon), the synthetic compound is dry-milled, then wet-milled, and finally dried to obtain SnSe powder.

[0016] Table 1 has provided and adopted preparation method provided by the present invention, prepares several preferred embodiments of SnSe powder:

[0017] Table 1

[0018] Optimal practice

Mechanical Alloying Dry Grinding

Mechanical Alloying Wet Grinding

whether

particle size

[0019] Example

speed(rpm)

time (h)

speed(rpm)

time (min)

...

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Abstract

The invention discloses a preparation method of SnSe nano powder and belongs to the technical field of nano materials. The preparation method of the SnSe nano powder comprises the following steps: preparing high-purity substances of Sn element and Se element according to a stoichiometric ratio of a final product, putting the substances into a planet type high energy ball-milling machine for mechanical alloying under the protection of inert gas, carrying out dry grinding at a certain rotating speed, directly synthesizing a compound, then adding a certain amount of absolute ethyl alcohol, carrying out wet grinding, and finally drying, so that SnSe superfine powder is obtained. The preparation method of the SnSe nano powder has the advantages of available raw materials, short time and controllable particle size, and is easy to operate, so that the preparation method of the SnSe nano powder is applicable to mass production.

Description

technical field [0001] The invention belongs to the technical field of nanometer materials, and mainly relates to a new preparation method of SnSe nanometer powder. Background technique [0002] SnSe is an important semiconductor material. It has potential application value in pyroelectric, photoelectric detection and other fields. In addition, its energy band gap is 1.0-1.5eV, which is very suitable for the fields of thermoelectric and photovoltaic cells. For nanoparticles, the size and distribution of nanoparticles are very important. They directly affect their surface effects, quantum effects, small size effects and macroscopic quantum tunneling effects, etc., which lead to their optical, magnetic, electrical, and thermal properties. and mechanical properties. It can be seen that the particle size scale and morphology of the powder are crucial to the performance of the material. Previously, various methods have been explored to prepare SnSe nanostructured materials. ...

Claims

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Application Information

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IPC IPC(8): C01B19/04B82Y30/00
CPCC01B19/04C01P2002/72C01P2004/03C01P2004/64
Inventor 赵立东宫声凯常诚裴延玲
Owner BEIHANG UNIV
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