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Statements

Subject Item
n2:RIV%2F61989100%3A27360%2F11%3A86080609%21RIV12-GA0-27360___
rdf:type
skos:Concept n11:Vysledek
dcterms:description
A series Co-Mn-Al mixed oxides was prepared by thermal treatment of coprecipitated layered double hydroxide precursors modified with different amount of potassium (0-3 wt%) and tested in N2O catalytic decomposition. Chemical analysis, XRD, XPS, surface area measurements, SEM, and contact potential difference measurements were used for bulk and surface characterization of the catalysts. The Co-Mn-Al mixed oxide with 1.1-1.8 wt% K exhibited the highest conversion of N2O and minimum value of the catalyst surface work function. Direct correlation between the work function values and the activity of the catalysts demonstrates that N2O decomposition over K-promoted Co-Mn-Al mixed oxides proceeds via the cationic redox mechanism and controlled modification of surface electronic properties provides the essential factor for catalyst optimization. A series Co-Mn-Al mixed oxides was prepared by thermal treatment of coprecipitated layered double hydroxide precursors modified with different amount of potassium (0-3 wt%) and tested in N2O catalytic decomposition. Chemical analysis, XRD, XPS, surface area measurements, SEM, and contact potential difference measurements were used for bulk and surface characterization of the catalysts. The Co-Mn-Al mixed oxide with 1.1-1.8 wt% K exhibited the highest conversion of N2O and minimum value of the catalyst surface work function. Direct correlation between the work function values and the activity of the catalysts demonstrates that N2O decomposition over K-promoted Co-Mn-Al mixed oxides proceeds via the cationic redox mechanism and controlled modification of surface electronic properties provides the essential factor for catalyst optimization.
dcterms:title
Electronic nature of potassium promotion effect in Co-Mn-Al mixed oxide on the catalytic decomposition of N2O Electronic nature of potassium promotion effect in Co-Mn-Al mixed oxide on the catalytic decomposition of N2O
skos:prefLabel
Electronic nature of potassium promotion effect in Co-Mn-Al mixed oxide on the catalytic decomposition of N2O Electronic nature of potassium promotion effect in Co-Mn-Al mixed oxide on the catalytic decomposition of N2O
skos:notation
RIV/61989100:27360/11:86080609!RIV12-GA0-27360___
n11:predkladatel
n17:orjk%3A27360
n3:aktivita
n16:P n16:Z
n3:aktivity
P(GA106/09/1664), Z(MSM6198910016)
n3:cisloPeriodika
12
n3:dodaniDat
n14:2012
n3:domaciTvurceVysledku
n13:5845467
n3:druhVysledku
n15:J
n3:duvernostUdaju
n10:S
n3:entitaPredkladatele
n7:predkladatel
n3:idSjednocenehoVysledku
197114
n3:idVysledku
RIV/61989100:27360/11:86080609
n3:jazykVysledku
n18:eng
n3:klicovaSlova
Nitrous oxide, Catalytic decomposition, Layered double hydroxides, Mixed oxide catalysts, Potassium promoter, Work function
n3:klicoveSlovo
n6:Nitrous%20oxide n6:Mixed%20oxide%20catalysts n6:Work%20function n6:Layered%20double%20hydroxides n6:Catalytic%20decomposition n6:Potassium%20promoter
n3:kodStatuVydavatele
NL - Nizozemsko
n3:kontrolniKodProRIV
[4DE762F0925E]
n3:nazevZdroje
Catalysis Communications
n3:obor
n12:CI
n3:pocetDomacichTvurcuVysledku
1
n3:pocetTvurcuVysledku
5
n3:projekt
n4:GA106%2F09%2F1664
n3:rokUplatneniVysledku
n14:2011
n3:svazekPeriodika
12
n3:tvurceVysledku
Maniak, Gabriela Obalová, Lucie Karásková, Kateřina Kotarba, Andrzej Kovanda, František
n3:zamer
n19:MSM6198910016
s:issn
1566-7367
s:numberOfPages
4
n20:organizacniJednotka
27360