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Statements

Subject Item
n2:RIV%2F61388955%3A_____%2F05%3A00023342%21RIV06-AV0-61388955
rdf:type
skos:Concept n16:Vysledek
dcterms:description
The decomposition of a mixture of 15N2O and 14N2O doe not lead to a formation of 14N15N on Fe-ferrierite, so that the N-N bonds is not dissociated during this reaction. On the other hand, mono-nitro NOx surface species are created during the N2O decomposition, and are desorbed as NO2 and NO into the gas phase above 300oC. The reaction of N2O with active oxygen is suggested to explain their formation. NO2 and NO are also found after the addition of NO to N2O which substantially enhances the nitrous oxide decomposition. The addition of CO instead of NO accelerated the N2O decomposition and suppresses the formation of surface NOx species. The dependence of the decomposition of nitrous oxide on the added CO and/or NO is different. Operation of both agents is discussed together with the temperature of the Fe-ferrierite pretreatment. Rozklad směsi 15N2O a 14N2O nevede na Fe-ferrieritu k tvorbě 14N15N, takže vazba N-N během reakce nedisociuje. Mono-nitro povrchové specie se však tvoří během rozkladu N2O, a jsou desorbovány nad 300oC do plynné fáze jako NO2 a NO. Předpokladem jejich vzniku je reakce N2O s aktivním kyslíkem. NO2 a NO se též tvoří po přidání NO k N2O, které podstatně urychluje rozklad oxidu dusného. Přidání CO místo NO urychluje rozklad N2O a potlačuje tvorbu povrchových NOx specií. Závislost rozkladu oxidu dusného na přídavcích CO a NO se liší. Působení obou těchto přídavků se diskutuje spolu s vlivem teploty opracování Fe-ferrieritu. The decomposition of a mixture of 15N2O and 14N2O doe not lead to a formation of 14N15N on Fe-ferrierite, so that the N-N bonds is not dissociated during this reaction. On the other hand, mono-nitro NOx surface species are created during the N2O decomposition, and are desorbed as NO2 and NO into the gas phase above 300oC. The reaction of N2O with active oxygen is suggested to explain their formation. NO2 and NO are also found after the addition of NO to N2O which substantially enhances the nitrous oxide decomposition. The addition of CO instead of NO accelerated the N2O decomposition and suppresses the formation of surface NOx species. The dependence of the decomposition of nitrous oxide on the added CO and/or NO is different. Operation of both agents is discussed together with the temperature of the Fe-ferrierite pretreatment.
dcterms:title
N2O decomposition and formation of NOx species on Fe-ferrierite. Effect of NO and CO addition on the decomposition and the role of surface species Rozklad N2O a tvorba NOx specií na Fe-ferrieritu. Vliv přídavku NO a CO na rozklad a úloha povrchových specií N2O decomposition and formation of NOx species on Fe-ferrierite. Effect of NO and CO addition on the decomposition and the role of surface species
skos:prefLabel
Rozklad N2O a tvorba NOx specií na Fe-ferrieritu. Vliv přídavku NO a CO na rozklad a úloha povrchových specií N2O decomposition and formation of NOx species on Fe-ferrierite. Effect of NO and CO addition on the decomposition and the role of surface species N2O decomposition and formation of NOx species on Fe-ferrierite. Effect of NO and CO addition on the decomposition and the role of surface species
skos:notation
RIV/61388955:_____/05:00023342!RIV06-AV0-61388955
n3:strany
169;177
n3:aktivita
n4:Z n4:P
n3:aktivity
P(1ET400400413), Z(AV0Z40400503)
n3:cisloPeriodika
3-4
n3:dodaniDat
n18:2006
n3:domaciTvurceVysledku
n15:2875187 n15:3023338
n3:druhVysledku
n17:J
n3:duvernostUdaju
n7:S
n3:entitaPredkladatele
n8:predkladatel
n3:idSjednocenehoVysledku
533629
n3:idVysledku
RIV/61388955:_____/05:00023342
n3:jazykVysledku
n14:eng
n3:klicovaSlova
decomposition of N2O; surface species desorbed; low- and high-temperature pretreated samples; isotope labeling
n3:klicoveSlovo
n9:isotope%20labeling n9:decomposition%20of%20N2O n9:low-%20and%20high-temperature%20pretreated%20samples n9:surface%20species%20desorbed
n3:kodStatuVydavatele
US - Spojené státy americké
n3:kontrolniKodProRIV
[EA54F5B52446]
n3:nazevZdroje
Catalysis Letters
n3:obor
n10:CF
n3:pocetDomacichTvurcuVysledku
2
n3:pocetTvurcuVysledku
2
n3:projekt
n13:1ET400400413
n3:rokUplatneniVysledku
n18:2005
n3:svazekPeriodika
105
n3:tvurceVysledku
Sobalík, Zdeněk Nováková, Jana
n3:zamer
n11:AV0Z40400503
s:issn
1011-372X
s:numberOfPages
9