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Statements

Subject Item
n2:RIV%2F00216275%3A25310%2F07%3A00005915%21RIV08-MSM-25310___
rdf:type
skos:Concept n8:Vysledek
dcterms:description
Hexagonal mesoporous silica (HMS) catalysts post-synthetically doped with vanadia oxo-species were characterized by means of XRD, UV-Vis spectroscopy, H-2-TPR and studied in oxidative dehydrogenation of propane (ODH). The relationship between catalytic activity in ODH and the presence of different vanadia-oxo species (monomeric, oligomeric and oxide-like species) was suggested. Monomeric VOx species are responsible for high catalytic activity and selectivity, oligomeric species containing V-O-V bond are active but non-selective to propene and oxide-like VOx particles are significantly less active and selective. Hexagonal mesoporous silica (HMS) catalysts post-synthetically doped with vanadia oxo-species were characterized by means of XRD, UV-Vis spectroscopy, H-2-TPR and studied in oxidative dehydrogenation of propane (ODH). The relationship between catalytic activity in ODH and the presence of different vanadia-oxo species (monomeric, oligomeric and oxide-like species) was suggested. Monomeric VOx species are responsible for high catalytic activity and selectivity, oligomeric species containing V-O-V bond are active but non-selective to propene and oxide-like VOx particles are significantly less active and selective. Hexagonální mesoporézní silika dopovaná vanadem byla charakterizována pomocí XRD, UV-vis spektroskopií, H2-TPR a dále byla studována v oxidativní dehydrogenaci propanu (ODH). Byl navržen vztah mezi katalytickou aktivitou v ODH a přítomností různých vanadových oxo-komplexů.monomerní oxo-komplexy jsou zodpovědné za aktivitu a selektivitu katalyzátoru v reakci, zatímco oligomerické a oxidické komplexy jsou neselektivní a přispívají k zvýšené produkci oxidů uhlíku.
dcterms:title
Vanadium Supported on Hexagonal Mesoporous Silica: Active and Stable Catalysts in the Oxidative Dehydrogenation of Alkanes Hexagonální mesoporézní silika nesoucí vanad: aktivní a stabilní katalyzátor pro oxidativní dehydrogenaci lehkých uhlovodíků Vanadium Supported on Hexagonal Mesoporous Silica: Active and Stable Catalysts in the Oxidative Dehydrogenation of Alkanes
skos:prefLabel
Hexagonální mesoporézní silika nesoucí vanad: aktivní a stabilní katalyzátor pro oxidativní dehydrogenaci lehkých uhlovodíků Vanadium Supported on Hexagonal Mesoporous Silica: Active and Stable Catalysts in the Oxidative Dehydrogenation of Alkanes Vanadium Supported on Hexagonal Mesoporous Silica: Active and Stable Catalysts in the Oxidative Dehydrogenation of Alkanes
skos:notation
RIV/00216275:25310/07:00005915!RIV08-MSM-25310___
n3:strany
51-55
n3:aktivita
n14:S n14:P n14:Z
n3:aktivity
P(GD203/03/H140), S, Z(MSM0021627501)
n3:cisloPeriodika
1-4
n3:dodaniDat
n13:2008
n3:domaciTvurceVysledku
n4:7420900 n4:5655730 n4:5796237 n4:9871233
n3:druhVysledku
n15:J
n3:duvernostUdaju
n17:S
n3:entitaPredkladatele
n18:predkladatel
n3:idSjednocenehoVysledku
457466
n3:idVysledku
RIV/00216275:25310/07:00005915
n3:jazykVysledku
n11:eng
n3:klicovaSlova
Hexagonal Mesoporous Silica; VOx Species; Oxidative Dehydrogenation; Propane
n3:klicoveSlovo
n9:Propane n9:VOx%20Species n9:Oxidative%20Dehydrogenation n9:Hexagonal%20Mesoporous%20Silica
n3:kodStatuVydavatele
US - Spojené státy americké
n3:kontrolniKodProRIV
[F72D6DEBF82C]
n3:nazevZdroje
Topics in Catalysis
n3:obor
n16:CF
n3:pocetDomacichTvurcuVysledku
4
n3:pocetTvurcuVysledku
4
n3:projekt
n10:GD203%2F03%2FH140
n3:rokUplatneniVysledku
n13:2007
n3:svazekPeriodika
45
n3:tvurceVysledku
Čapek, Libor Bulánek, Roman Knotek, Petr Adam, Jiří
n3:zamer
n12:MSM0021627501
s:issn
1022-5528
s:numberOfPages
5
n7:organizacniJednotka
25310