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Role of the Fe-zeolite structure and iron state in the N2O decomposition: Comparison of Fe-FER, Fe-BEA, and Fe-MFI catalysts
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SYSNO ASEP 0322900 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Role of the Fe-zeolite structure and iron state in the N2O decomposition: Comparison of Fe-FER, Fe-BEA, and Fe-MFI catalysts Title Vliv zeolitické struktury a stav Fe na rozklad N2O: srovnani Fe-FER, Fe-BEA a Fe-MFI katalyzátorů Author(s) Jíša, Kamil (UFCH-W)
Nováková, Jana (UFCH-W) RID
Schwarze, Michael (UFCH-W)
Vondrová, Alena (UFCH-W) RID
Sklenák, Štěpán (UFCH-W) RID, ORCID, SAI
Sobalík, Zdeněk (UFCH-W) RIDSource Title Journal of Catalysis. - : Elsevier - ISSN 0021-9517
Roč. 262, č. 1 (2009), s. 27-34Number of pages 8 s. Language eng - English Country US - United States Keywords Fe in FER ; BEA a MFI ; N2O decomposition Subject RIV CF - Physical ; Theoretical Chemistry R&D Projects 1ET400400413 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) 1QS400400560 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) CEZ AV0Z40400503 - UFCH-W (2005-2011) UT WOS 000264123000004 DOI 10.1016/j.jcat.2008.11.025 Annotation The decomposition of nitrous oxide was compared over Fe-FER, Fe-MFI, and Fe-BEA with well established iron distribution in cationic positions and low amounts of less well-established oxide species. It was evidenced that, despite a comparable content of Fe(II) in the cationic positions, the catalytic activity of re-FER greatly exceeds that of Fe-BEA and Fe-MFI. While about one half of the iron sites in Fe-FER (Fe/Al < 0.15) participate in the decomposition of nitrous oxide after activation at 450 degrees C, the number of active sites in Fe-BEA or Fe-MFI was much lower, and, accordingly, without acceleration of the reaction by the addition of NO, these samples exhibit much lower catalytic activity than Fe-FER. This could be likely correlated with the concentration of Fe(II) in positions with a specific spatial iron arrangement at optimal Fe center dot center dot center dot Fe distances. Workplace J. Heyrovsky Institute of Physical Chemistry Contact Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196 Year of Publishing 2009
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