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N2O decomposition over Fe-FER: A Mössbauer study of the active sites
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SYSNO ASEP 0364619 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název N2O decomposition over Fe-FER: A Mössbauer study of the active sites Tvůrce(i) 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) RIDZdroj.dok. Catalysis Today. - : Elsevier - ISSN 0920-5861
Roč. 175, č. 1 (2011), s. 238-244Poč.str. 7 s. Jazyk dok. eng - angličtina Země vyd. NL - Nizozemsko Klíč. slova iron ferrierites ; N2O decomposition ; cationic sites Vědní obor RIV CF - Fyzikální chemie a teoretická chemie CEP KAN100400702 GA AV ČR - Akademie věd GA203/09/1627 GA ČR - Grantová agentura ČR GP203/08/P593 GA ČR - Grantová agentura ČR CEZ AV0Z40400503 - UFCH-W (2005-2011) UT WOS 000295735400035 DOI 10.1016/j.cattod.2011.04.024 Anotace 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]. Pracoviště Ústav fyzikální chemie J.Heyrovského Kontakt Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196 Rok sběru 2012
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