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Investigation of silica-cаrbon composites produced from silica-fofmaldegyde-resorcinol aerogelsстатья
Информация о цитировании статьи получена из
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 27 марта 2018 г.
- Авторы: Gordienko M., Makarova I., Tsygankov P., Menshutina N., Konkova T.
- Журнал: International Multidisciplinary Scientific GeoConference Surveying Geology and Mining Ecology Management, SGEM
- Том: 17
- Год издания: 2017
- Первая страница: 187
- Последняя страница: 194
- Аннотация: In this work, the organic silicon-based composites were obtained from resorcinol, formaldehyde, TEOS, N-(b-aminoethyl)-g-aminopropyl-trimethoxysilane (AEAPTES) as initial materials for carbon-silica composites producing. The solvent was acetone, those molar ratio to resorcinol varied in following: sample S1 – 1:11; sample S2 – 1:14 and sample S3 – 1:19. Gels were prepared by one-stage method. The silica-organic gels were supper-critical dried. It was shown that the heat treatment of silica-organic gels allows getting silica-organic gels with bigger surface area and total pore volume. The resulting samples were subjected to pyrolysis in a nitrogen atmosphere at 700 °C for 3 hours. It should be noted that in the pyrolysis of samples of significant shrinkage occurred. The loss of volume was 30-40 %. The textural parameters of carbon-organic composites influence on the textural parameters of a carbon–silica aerogel composites.
- Добавил в систему: Конькова Татьяна Владимировна