METHOD OF PRODUCING NANOPOROUS MATERIAL FOR SENSITIVE ELEMENTS OF GAS SENSORS AND NANOPOROUS MATERIAL OBTAINED USING SAID METHOD Russian patent published in 2017 - IPC C01B33/14 C01B33/158 C01F7/02 B82B3/00 

FIELD: chemistry.

SUBSTANCE: invention relates to production of nanoporous materials based on silicon-aluminium aerogels and can be in making sensitive elements of measurement devices of gas sensors, used in power engineering, chemical industry, as well as analysis of expired air in medicine. Disclosed is a method of producing nanoporous material, which is a composite silicon-aluminium aerogel composition SiO₂/Al₂O₃, using a sol-gel process, in which to produce aluminium oxide sol a product of reacting aluminium nanopowder and/or aluminium nitride composition with particle size from 50 to 500 nm with water is used, which is then peptized to obtain sol. Also disclosed is a corresponding nanoporous material.

EFFECT: technical result is obtaining nanoporous material based on silicon-aluminium aerogel with required charge properties: zeta-potential from -20 to -26 mV, charge surface density from 10^-3 to 10^-2 C/m², in pores of which it is possible to perform transformation (change) of spectra of molecules of gases, as well as producing an aerogel without use of supercritical drying during its synthesis.

9 cl, 4 dwg, 1 tbl, 5 ex