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Statements

Subject Item
n2:RIV%2F67985858%3A_____%2F10%3A00343774%21RIV11-GA0-67985858
rdf:type
n7:Vysledek skos:Concept
dcterms:description
Catalytic decomposition of N2O over calcined Co-Mn-Al layered double hydroxide (LDH) modified with slight amount of alkali (Li, Na, K), rare earth (La, Ce), or noble metals (Pd, Pt) was studied. The method of preparation (impregnation, coprecipitation) affected the reducibility of the obtained mixed oxide catalysts but its effect on the surface area (with the exception of a cerium-contained sample) and N2O conversion was less evident. The modification of the Co-Mn-Al mixed oxide with K or Na increased N2O conversion, while no effect or a decrease in the N2O conversion was observed over the other examined catalysts. Alkali metals act as electron promoters; therefore, the differences in catalytic activity may be related to changes of oxygen-transition metal bond strength. The Co-Mn-Al mixed oxides with 1.8 wt% K exhibited a high catalytic activity even under the simultaneous presence of O2, H2O and NOx. Catalytic decomposition of N2O over calcined Co-Mn-Al layered double hydroxide (LDH) modified with slight amount of alkali (Li, Na, K), rare earth (La, Ce), or noble metals (Pd, Pt) was studied. The method of preparation (impregnation, coprecipitation) affected the reducibility of the obtained mixed oxide catalysts but its effect on the surface area (with the exception of a cerium-contained sample) and N2O conversion was less evident. The modification of the Co-Mn-Al mixed oxide with K or Na increased N2O conversion, while no effect or a decrease in the N2O conversion was observed over the other examined catalysts. Alkali metals act as electron promoters; therefore, the differences in catalytic activity may be related to changes of oxygen-transition metal bond strength. The Co-Mn-Al mixed oxides with 1.8 wt% K exhibited a high catalytic activity even under the simultaneous presence of O2, H2O and NOx.
dcterms:title
Effect of Promoters in Co-Mn-Al Mixed Oxide Catalyst on N2O Decomposition Effect of Promoters in Co-Mn-Al Mixed Oxide Catalyst on N2O Decomposition
skos:prefLabel
Effect of Promoters in Co-Mn-Al Mixed Oxide Catalyst on N2O Decomposition Effect of Promoters in Co-Mn-Al Mixed Oxide Catalyst on N2O Decomposition
skos:notation
RIV/67985858:_____/10:00343774!RIV11-GA0-67985858
n3:aktivita
n8:P n8:Z
n3:aktivity
P(2B06068), P(GA106/09/1664), Z(AV0Z40720504), Z(MSM6046137302)
n3:cisloPeriodika
2
n3:dodaniDat
n15:2011
n3:domaciTvurceVysledku
n18:8799938
n3:druhVysledku
n10:J
n3:duvernostUdaju
n12:S
n3:entitaPredkladatele
n9:predkladatel
n3:idSjednocenehoVysledku
256121
n3:idVysledku
RIV/67985858:_____/10:00343774
n3:jazykVysledku
n17:eng
n3:klicovaSlova
nitrous oxide; catalytic decomposition; promoter effect
n3:klicoveSlovo
n14:promoter%20effect n14:nitrous%20oxide n14:catalytic%20decomposition
n3:kodStatuVydavatele
NL - Nizozemsko
n3:kontrolniKodProRIV
[B096D6F67054]
n3:nazevZdroje
Chemical Engineering Journal
n3:obor
n11:CI
n3:pocetDomacichTvurcuVysledku
1
n3:pocetTvurcuVysledku
4
n3:projekt
n6:2B06068 n6:GA106%2F09%2F1664
n3:rokUplatneniVysledku
n15:2010
n3:svazekPeriodika
160
n3:tvurceVysledku
Jirátová, Květa Kovanda, F. Karásková, K. Obalová, L.
n3:wos
000279137900012
n3:zamer
n5:MSM6046137302 n5:AV0Z40720504
s:issn
1385-8947
s:numberOfPages
8