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Template synthesis, structure, sorption properties and acidity of micro-mesoporous materials obtained from sol-precursor of zeolite BEAстатья
- Авторы: Shcherban Nataliya, Barakov Roman, Yaremov Pavel, Solomakha Vladimir, Gryn Svitlana, Khaynakova Olena, Ilyin Vladimir
- Журнал: Journal of Porous Materials
- Том: 21
- Номер: 3
- Год издания: 2014
- Издательство: Springer Nature
- Местоположение издательства: Switzerland
- Первая страница: 355
- Последняя страница: 363
- DOI: 10.1007/s10934-014-9781-z
- Аннотация: Partially zeolitized micro-mesoporous materials (the total specific surface area S BET = 460–645 m2/g, mesopore volume V meso = 0.30–0.57 cm3/g, mesopore diameter D meso ≈ 5.6 nm, micropore volume V micro = 0.11–0.16 cm3/g, micropore diameter D micro ≈ 0.72 nm) and X-ray amorphous micro-mesoporous materials with uniform mesoporous structure (mesopore specific surface area S meso = 820–890 m2/g, total pore volume V t = 0.71–0.86 cm3/g, V meso = 0.53–0.67 cm3/g, D meso = 1.8–2.4 nm) were obtained by micellar templating of sol-precursor containing primary products of crystallization of zeolite BEA under conditions typical for forming of mesoporous molecular sieve MCM-41 (hydrothermal treatment at 100–130 °C for 3–5 days). It was found that the obtained X-ray amorphous micro-mesoporous materials contain secondary building units of zeolite BEA (five-membered rings of Si–O tetrahedra of BEA) and show acidic properties comparable to zeolite BEA.
- Добавил в систему: Бараков Роман Юрьевич