Microporous ceramic

Abstract

The invention discloses a microporous ceramic, which is characterized by comprising the following raw materials in parts by weight: 50-75 parts of dimethyl sulfoxide, 3-5 parts of copper oxide, 15-45 parts of trichloromethane, 1.8-7.9 parts of silicon oxide, 15-20 parts of cerium acetyl acetonate, 32-44 parts of polycarbosilane, 45-61 parts of porcelain stone, 25-47 parts of magnesite, 3-4.8 parts of wollastonite, 5-18 parts of allophone, 11-15 parts of dimethylaniline, 5-11 parts of hafnium acetylacetonate, 26-49 parts of cresol, 10-19 parts of ferric acetylacetonate, and 5-9 parts of antimony oxide. The microporous ceramic has the beneficial effects that the obtained ceramic belongs to the microporous field, is suitable for a carrier of a catalyst, an adsorbing separation material and the like, and is wide in application prospects; and a foaming agent, a pore production agent and the like are not required, so that the distribution unevenness of pores caused by insufficient mixing of raw materials can be avoided. The microporous ceramic is relatively simple in technology, the cost is lowered to a certain extent, and the application potential can be promoted.

Description

technical field [0001] The invention relates to a microporous ceramic. Background technique [0002] With its special structure, silicon oxygen carbon ceramics can be widely used in medical, energy, chemical and other fields. If there is a porous structure in the ceramic, it will affect the thermal conductivity and mechanical properties of the material, thereby broadening or changing the application range of the ceramic ( J. Eur. Ceram. Soc., 2013, 33:841-846). If the pore size in ceramics can be controlled below 2nm to prepare microporous ceramics, the unique characteristics of large specific surface area, small average pore size, and tortuous channels in microporous ceramics will endow the material with excellent performance in bacterial filtration, catalyst carrier, adsorption and separation materials. New application value in other fields. [0003] As a new technique for preparing porous ceramics, the precursor conversion method can effectively adjust the pores by cont...

AI Technical Summary

Problems solved by technology

[0006] At present, there is no report on the method of preparing silicon-oxygen-carbon microporous ceramics by pyrolysis at high temperature using polycarbosilane doped and modified with acetylacetone metal compounds as a polymer precursor.