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N2O decomposition over Fe-FER: A Mössbauer study of the active sites
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SYSNO ASEP 0364619 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title N2O decomposition over Fe-FER: A Mössbauer study of the active sites Author(s) Tabor, Edyta (UFCH-W) RID, ORCID
Závěta, K. (CZ)
Sathu, Naveen Kumar (UFCH-W)
Vondrová, Alena (UFCH-W) RID
Sazama, Petr (UFCH-W) RID, ORCID
Sobalík, Zdeněk (UFCH-W) RIDSource Title Catalysis Today. - : Elsevier - ISSN 0920-5861
Roč. 175, č. 1 (2011), s. 238-244Number of pages 7 s. Language eng - English Country NL - Netherlands Keywords iron ferrierites ; N2O decomposition ; cationic sites Subject RIV CF - Physical ; Theoretical Chemistry R&D Projects KAN100400702 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) GA203/09/1627 GA ČR - Czech Science Foundation (CSF) GP203/08/P593 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z40400503 - UFCH-W (2005-2011) UT WOS 000295735400035 DOI 10.1016/j.cattod.2011.04.024 Annotation Iron ferrierites with low iron content (Fe/Al between 0.018 and 0.072) were used as model catalysts to evaluate the participation of individual iron species, with special interest in the role of iron in β cationic sites, for formation of active sites for N2O decomposition. Despite low iron content, the catalysts with prevailing iron located in β sites of two types exhibited high conversions of N2O and activity increase with increase of iron loading. These results indicate formation of the active iron species already at very low concentrations, while at higher concentration level would part of the iron enter also into less active positions. Semi-quantitative analysis of the TOF values of individual iron centers was done using the recently established Mössbauer parameters of the Fe(II) parameters for individual iron cationic species, i.e. β (β-1 and β-2) and α sites [1]. 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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