{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"submitter":["Bok TO"],"funding":["Ministry of Education and Science of the Russian Federation"],"pagination":["38505-38514"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC9057372"],"repository":["biostudies-literature"],"omics_type":["Unknown"],"volume":["10(63)"],"pubmed_abstract":["The mechanism of seeding of zeolite BEA <i>via</i> steam assisted conversion has been studied using BEA seeds with different composition. The catalysts are characterized by X-ray diffraction, scanning and transmission electron microscopy, nitrogen adsorption-desorption, Hg-porosimetry, X-ray fluorescence and TPD of ammonia, and evaluated in benzene alkylation with propene. The results show that variation of the SiO<sub>2</sub>/Al<sub>2</sub>O<sub>3</sub> ratio from 25 to 250 in BEA seeds changes the mechanism of seeding from \"core-shell\" to a \"dissolution\" mechanism, which can serve as a tool for engineering the morphological, textural and catalytic properties of BEA zeolites. Al-rich seeds (SiO<sub>2</sub>/Al<sub>2</sub>O<sub>3</sub> = 25) do not dissolve during gel preparation and initia"],"journal":["RSC advances"],"pubmed_title":["Engineering of zeolite BEA crystal size and morphology <i>via</i> seed-directed steam assisted conversion."],"pmcid":["PMC9057372"],"funding_grant_id":["The State Program of TIPS RAS"],"pubmed_authors":["Bok TO","Ivanova II","Andriako EP","Knyazeva EE"],"additional_accession":[]},"is_claimable":false,"name":"Engineering of zeolite BEA crystal size and morphology <i>via</i> seed-directed steam assisted conversion.","description":"The mechanism of seeding of zeolite BEA <i>via</i> steam assisted conversion has been studied using BEA seeds with different composition. The catalysts are characterized by X-ray diffraction, scanning and transmission electron microscopy, nitrogen adsorption-desorption, Hg-porosimetry, X-ray fluorescence and TPD of ammonia, and evaluated in benzene alkylation with propene. The results show that variation of the SiO<sub>2</sub>/Al<sub>2</sub>O<sub>3</sub> ratio from 25 to 250 in BEA seeds changes the mechanism of seeding from \"core-shell\" to a \"dissolution\" mechanism, which can serve as a tool for engineering the morphological, textural and catalytic properties of BEA zeolites. Al-rich seeds (SiO<sub>2</sub>/Al<sub>2</sub>O<sub>3</sub> = 25) do not dissolve during gel preparation and initia","dates":{"release":"2020-01-01T00:00:00Z","publication":"2020 Oct","modification":"2025-04-04T20:50:26.816Z","creation":"2025-04-04T20:50:26.816Z"},"accession":"S-EPMC9057372","cross_references":{"pubmed":["35517548"],"doi":["10.1039/d0ra07610d"]}}