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Statements

Subject Item
n2:RIV%2F00216208%3A11310%2F09%3A10000983%21RIV10-MSM-11310___
rdf:type
n3:Vysledek skos:Concept
dcterms:description
Ceria-zirconia catalysts modified by partial substitution of zirconium by iron were investigated for the reaction of the selective oxidation of methane to formaldehyde. The insertion of iron was ensured by the preparation method, based on decomposition of the mixed precursors. The crystalline structure was studied by XRD and the iron state was determined by Mossbauer spectroscopy. The insertion of Fe3+ into the lattice of the mixed oxide and the partial substitution of zirconium ions with iron cations up to 25% have not resulted in any phase rejection of the formed iron oxide. The reducibility of Ce4+ in the modified ternary oxide is enhanced by doping with iron. Despite their low specific surface area, the catalysts are efficient at activating the methane independently of the iron content. The selectivity to formaldehyde strongly depends on the amount of the iron inserted in the mixed oxide. Ceria-zirconia catalysts modified by partial substitution of zirconium by iron were investigated for the reaction of the selective oxidation of methane to formaldehyde. The insertion of iron was ensured by the preparation method, based on decomposition of the mixed precursors. The crystalline structure was studied by XRD and the iron state was determined by Mossbauer spectroscopy. The insertion of Fe3+ into the lattice of the mixed oxide and the partial substitution of zirconium ions with iron cations up to 25% have not resulted in any phase rejection of the formed iron oxide. The reducibility of Ce4+ in the modified ternary oxide is enhanced by doping with iron. Despite their low specific surface area, the catalysts are efficient at activating the methane independently of the iron content. The selectivity to formaldehyde strongly depends on the amount of the iron inserted in the mixed oxide.
dcterms:title
Iron-ceria-zirconia fluorite catalysts for methane selective oxidation to formaldehyde Iron-ceria-zirconia fluorite catalysts for methane selective oxidation to formaldehyde
skos:prefLabel
Iron-ceria-zirconia fluorite catalysts for methane selective oxidation to formaldehyde Iron-ceria-zirconia fluorite catalysts for methane selective oxidation to formaldehyde
skos:notation
RIV/00216208:11310/09:10000983!RIV10-MSM-11310___
n4:aktivita
n8:V
n4:aktivity
V
n4:cisloPeriodika
14
n4:dodaniDat
n10:2010
n4:domaciTvurceVysledku
n16:5646057
n4:druhVysledku
n9:J
n4:duvernostUdaju
n17:S
n4:entitaPredkladatele
n15:predkladatel
n4:idSjednocenehoVysledku
320431
n4:idVysledku
RIV/00216208:11310/09:10000983
n4:jazykVysledku
n13:eng
n4:klicovaSlova
mixed oxides; Feox/SiO2 catalysts; hydrogen-production; oxygen; Ce; reduction
n4:klicoveSlovo
n5:mixed%20oxides n5:oxygen n5:Ce n5:Feox%2FSiO2%20catalysts n5:reduction n5:hydrogen-production
n4:kodStatuVydavatele
NL - Nizozemsko
n4:kontrolniKodProRIV
[37FD96BD836E]
n4:nazevZdroje
Catalysis Communications
n4:obor
n12:CF
n4:pocetDomacichTvurcuVysledku
1
n4:pocetTvurcuVysledku
3
n4:rokUplatneniVysledku
n10:2009
n4:svazekPeriodika
10
n4:tvurceVysledku
Nižňanský, Daniel Roger, Anne-Cécile Nedyalkova, Radka
n4:wos
000269664200020
s:issn
1566-7367
s:numberOfPages
6
n14:organizacniJednotka
11310