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Statements

Subject Item
n2:RIV%2F61388955%3A_____%2F10%3A00345231%21RIV11-GA0-61388955
rdf:type
n15:Vysledek skos:Concept
dcterms:description
The N2O decomposition over Fe-ferrierite, Fe-beta, and Fe-ZSM-5 has been recently studied [K.Jisa, J. Novakova, M.Schwarze, A. Vondrova, S. Sklenak, Z. Sobalik, J. Catal. 262(2009)27] and a superior activity of Fe-ferrierite with respect to Fe-beta and Fe-ZSM-5 has been shown. In this study, we investigated (1) plausible active sites for the N2O decomposition over Fe-ferrierite and (2) the origin of the distinct reactivity of Fe-ferrierite, Fe-ZSM-5 and Fe-beta employing a combined theoretical (periodic DFT) and experimental (UV–vis–NIR spectroscopy, IR spectroscopy, 29Si MAS NMR spectroscopy and catalytic batch experiments) approach. We evidenced that two Fe(II) cations accommodated in two adjacent six-membered rings in the eight-membered ring channel (β sites) of Fe-ferrierite (the calculated Fe–Fe distance is 7.4 Å) form the active site responsible for the superior activity of this catalyst in the N2O decomposition in the absence of NO. Similar structures can be formed in Fe-beta. The N2O decomposition over Fe-ferrierite, Fe-beta, and Fe-ZSM-5 has been recently studied [K.Jisa, J. Novakova, M.Schwarze, A. Vondrova, S. Sklenak, Z. Sobalik, J. Catal. 262(2009)27] and a superior activity of Fe-ferrierite with respect to Fe-beta and Fe-ZSM-5 has been shown. In this study, we investigated (1) plausible active sites for the N2O decomposition over Fe-ferrierite and (2) the origin of the distinct reactivity of Fe-ferrierite, Fe-ZSM-5 and Fe-beta employing a combined theoretical (periodic DFT) and experimental (UV–vis–NIR spectroscopy, IR spectroscopy, 29Si MAS NMR spectroscopy and catalytic batch experiments) approach. We evidenced that two Fe(II) cations accommodated in two adjacent six-membered rings in the eight-membered ring channel (β sites) of Fe-ferrierite (the calculated Fe–Fe distance is 7.4 Å) form the active site responsible for the superior activity of this catalyst in the N2O decomposition in the absence of NO. Similar structures can be formed in Fe-beta.
dcterms:title
N2O decomposition over Fe-zeolites: Structure of the active sites and the origin of the distinct reactivity of Fe-ferrierite, Fe-ZSM-5, and Fe-beta. A combined periodic DFT and multispectral study N2O decomposition over Fe-zeolites: Structure of the active sites and the origin of the distinct reactivity of Fe-ferrierite, Fe-ZSM-5, and Fe-beta. A combined periodic DFT and multispectral study
skos:prefLabel
N2O decomposition over Fe-zeolites: Structure of the active sites and the origin of the distinct reactivity of Fe-ferrierite, Fe-ZSM-5, and Fe-beta. A combined periodic DFT and multispectral study N2O decomposition over Fe-zeolites: Structure of the active sites and the origin of the distinct reactivity of Fe-ferrierite, Fe-ZSM-5, and Fe-beta. A combined periodic DFT and multispectral study
skos:notation
RIV/61388955:_____/10:00345231!RIV11-GA0-61388955
n3:aktivita
n8:Z n8:P
n3:aktivity
P(GA203/09/1627), P(IAA400400812), P(IAA400400904), P(IAA400400908), P(KAN100400702), Z(AV0Z40400503)
n3:cisloPeriodika
2
n3:dodaniDat
n9:2011
n3:domaciTvurceVysledku
n10:5630134 n10:2875187 Jansang, Bavornpon n10:9628983 Boekfa, Bundet Andrikopoulos, Prokopis C. n10:3023338
n3:druhVysledku
n13:J
n3:duvernostUdaju
n18:S
n3:entitaPredkladatele
n17:predkladatel
n3:idSjednocenehoVysledku
275759
n3:idVysledku
RIV/61388955:_____/10:00345231
n3:jazykVysledku
n12:eng
n3:klicovaSlova
N2O decomposition; Fe in ferrierite; Fe in ZSM-5
n3:klicoveSlovo
n7:Fe%20in%20ZSM-5 n7:Fe%20in%20ferrierite n7:N2O%20decomposition
n3:kodStatuVydavatele
US - Spojené státy americké
n3:kontrolniKodProRIV
[E0D698F8DFAB]
n3:nazevZdroje
Journal of Catalysis
n3:obor
n4:CF
n3:pocetDomacichTvurcuVysledku
7
n3:pocetTvurcuVysledku
10
n3:projekt
n6:IAA400400812 n6:GA203%2F09%2F1627 n6:KAN100400702 n6:IAA400400904 n6:IAA400400908
n3:rokUplatneniVysledku
n9:2010
n3:svazekPeriodika
272
n3:tvurceVysledku
Bucko, T. Benco, L. Sklenák, Štěpán Nováková, Jana Sobalík, Zdeněk Hafner, J. Andrikopoulos, Prokopis C. Boekfa, Bundet Jansang, Bavornpon Dědeček, Jiří
n3:wos
000279567900010
n3:zamer
n5:AV0Z40400503
s:issn
0021-9517
s:numberOfPages
13