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Siting and Distribution of Framework Aluminium Atoms in Silicon-Rich Zeolites and Impact on Catalysis
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SYSNO ASEP 0384175 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Siting and Distribution of Framework Aluminium Atoms in Silicon-Rich Zeolites and Impact on Catalysis Author(s) Dědeček, Jiří (UFCH-W) RID, ORCID
Sobalík, Zdeněk (UFCH-W) RID
Wichterlová, Blanka (UFCH-W) RIDSource Title Catalysis Reviews-Science and Engineering. - : Taylor & Francis - ISSN 0161-4940
Roč. 54, č. 2 (2012), s. 135-223Number of pages 89 s. Language eng - English Country NL - Netherlands Keywords Si-rich zeolites ; ZSM-5 ; beta-zeolite Subject RIV CF - Physical ; Theoretical Chemistry R&D Projects KAN100400702 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) IAA400400904 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) GAP106/11/0624 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z40400503 - UFCH-W (2005-2011) UT WOS 000303235700001 DOI 10.1080/01614940.2012.632662 Annotation Siting of Al atoms in the framework T sites, in zeolite rings and channel/cavity system, and the distribution of Al atoms between single Al atoms and close Al atoms in various Al-O-(Si-O)(n)-Al sequences in Si-rich zeolites represent key parameters controlling properties of counter ion species. Framework Al siting and distribution is not random or controlled by simple rules and depends on the conditions of the zeolite synthesis. Al in Al-O-(Si-O)(2)-Al in one 6-MR and single Al atoms predominate in Si-rich zeolites and their population can be varied to a large extent. The siting and distribution of framework Al atoms dramatically affect catalytic activity/selectivity both of protonic and transition metal ion-containing zeolite catalysts. Workplace J. Heyrovsky Institute of Physical Chemistry Contact Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196 Year of Publishing 2013
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