Open AccessPreparation of silicon and alumosilicic aerogels based on the decomposition of nepheline with an alcoholic solution of sulfuric acid
Author(s) -
Yu. O. Velyaev,
AUTHOR_ID,
Д. В. Майоров,
И. Б. Кометиани,
AUTHOR_ID,
AUTHOR_ID
Publication year - 2021
Publication title -
trudy kolʹskogo naučnogo centra ran
Language(s) - English
Resource type - Journals
ISSN - 2307-5252
DOI - 10.37614/2307-5252.2021.2.5.011
Subject(s) - nepheline , sulfuric acid , silicon , materials science , aerogel , decomposition , chemical engineering , specific surface area , aluminium , porosity , mineralogy , inorganic chemistry , metallurgy , chemistry , composite material , catalysis , organic chemistry , engineering
The results of studies on the production of silicon and aluminum-silicon aerogels from nepheline are presented. The morphology of the obtained samples was studied. Their chemical purity was proved by the method of X-ray elemental analysis. The structural and surface properties of the resulting aerogel are presented, such as: specific surface area (843.62 и 503.99 m2/g) and pore volume (0.396 и 0.237 cm3/g), average pore size (1.870 nm). Data on the skeletal density of the obtained samples are given