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Tailoring of Fe-ferrierite for N2O decomposition: On the decisive role of framework Al distribution for catalytic activity of Fe species in Fe-ferrierite
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SYSNO ASEP 0363452 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Tailoring of Fe-ferrierite for N2O decomposition: On the decisive role of framework Al distribution for catalytic activity of Fe species in Fe-ferrierite Author(s) Sobalík, Zdeněk (UFCH-W) RID
Nováková, Jana (UFCH-W) RID
Dědeček, Jiří (UFCH-W) RID, ORCID
Sathu, Naveen Kumar (UFCH-W)
Tabor, Edyta (UFCH-W) RID, ORCID
Sazama, Petr (UFCH-W) RID, ORCID
Štastný, P. (CZ)
Wichterlová, Blanka (UFCH-W) RIDSource Title Microporous and Mesoporous Materials. - : Elsevier - ISSN 1387-1811
Roč. 146, 1-3 (2011), s. 172-183Number of pages 12 s. Language eng - English Country NL - Netherlands Keywords N2O decomposition ; Fe-ferrierite ; Al distribution in zeolites Subject RIV CF - Physical ; Theoretical Chemistry R&D Projects GAP106/11/0624 GA ČR - Czech Science Foundation (CSF) GA203/09/1627 GA ČR - Czech Science Foundation (CSF) IAA400400904 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) KAN100400702 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) CEZ AV0Z40400503 - UFCH-W (2005-2011) UT WOS 000295769400022 DOI 10.1016/j.micromeso.2011.05.004 Annotation Two parent ferrierites with similar Si/Al ratio (8.5 and 10.5), a commercial and a laboratory specimen with different distribution of Al atoms in the framework, were used for the preparation of model Fe-ferrierite catalysts for N2O decomposition. As proven by UV–Vis analysis of the fully exchanged Co(II)-ferrierites, the two ferrierites differ in the distribution of framework Al between Al–O–(Si–O)2–Al sequences in one ring (Al pairs) and single Al atoms in different rings (Al–O–(Si–O)n>2–Al sequences). The part of the framework Al atoms arranged in Al pairs mostly in β six-member rings was 66% and 30% of Al for the two ferrierites. Two series of Fe-ferrierites with low concentration between 0.4 and 2.1 wt.% Fe were prepared, containing Fe ions in cationic sites, and valence and siting analyzed by Mössbauer spectroscopy of 57Fe isotope enriched (96%) samples. Workplace J. Heyrovsky Institute of Physical Chemistry Contact Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196 Year of Publishing 2012
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