Porous silicon material and preparation method of porous silicon material

A technology for porous silicon and raw materials, which is applied in chemical instruments and methods, silicon compounds, inorganic chemistry, etc., can solve the problems of high production cost of porous silicon materials, polluting industrial production, complicated processes, etc., and achieves low production cost and uniform pore size. , the effect of simple process
CN104229804AInactive Publication Date: 2014-12-24INST OF PROCESS ENG CHINESE ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
INST OF PROCESS ENG CHINESE ACAD OF SCI
Publication Date
2014-12-24
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides a porous silicon material and a preparation method of the porous silicon material. The preparation method of the porous silicon material comprises the following steps: carrying out in-situ catalytic reaction on silicon and alcohol at 60-400 DEG C under the action of a solid copper-based catalyst, and preparing the porous silicon material by post-treatment and purification technologies such as burning, and pickling and alkali washing. The porous silicon material prepared by the method is uniform in aperture, and the pore structure, size and porosity of silicon can be regulated and controlled by adjusting reaction parameters. The method is low in production cost, simple in process, easy to operate, clean in preparation process, and suitable for industrial production, and has a wide application prospect. In addition, the process can be combined with an alkoxy silane production process, and the process is expected to achieve double-win of porous silicon material and alkoxy silane production.
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Description

technical field

[0001] The invention relates to the technical field of porous silicon materials, in particular to a porous silicon material and a preparation method thereof. Background technique

[0002] Porous silicon is a new functional porous material with a pore size ranging from nanometers to millimeters. Due to its unique dielectric properties, optical properties, microelectronic compatibility, large specific surface area and pore controllability, it is widely used in biological analysis, Immunoassays, lighting materials, optoelectronic devices, integrated circuits, insulating materials, sensitive components and sensors, solar cells and lithium-ion batteries have a wide range of applications. Porous silicon is a new type of semiconductor optoelectronic material, which has excellent photoluminescence, electroluminescence and other characteristics at room temperature, and is compatible with existing silicon technology, and it is very likely to realize applications in man...

Claims

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