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Statements

Subject Item
n2:RIV%2F61388955%3A_____%2F11%3A00369217%21RIV12-AV0-61388955
rdf:type
skos:Concept n16:Vysledek
dcterms:description
18O-isotope labelled titania (anatase, rutile) was synthesized. The products were characterized by Raman spectra together with their quantum chemical modelling. The interaction with carbon dioxide was investigated using high-resolution FTIR spectroscopy, in dark and upon UV-excitation. The oxygen isotope exchange at the Ti18O2/C16O2 interface was elucidated. The C18O2 was formed as the dominating final product with a minor content of C16O18O. The rate of oxygen-isotope exchange is highly sensitive to the conditions of the titania pretreatment. The vacuum-annealed Ti18O2 at 450 C exhibited a very high spontaneous oxygen exchange activity with gaseous C16O2. A mechanism for the 18O/16O exchange process is discussed at the molecular level. The photocatalytic formation of methane, acetylene and C16O released from the Ti18O2 surface was triggered by an XeCl excimer laser irradiation. 18O-isotope labelled titania (anatase, rutile) was synthesized. The products were characterized by Raman spectra together with their quantum chemical modelling. The interaction with carbon dioxide was investigated using high-resolution FTIR spectroscopy, in dark and upon UV-excitation. The oxygen isotope exchange at the Ti18O2/C16O2 interface was elucidated. The C18O2 was formed as the dominating final product with a minor content of C16O18O. The rate of oxygen-isotope exchange is highly sensitive to the conditions of the titania pretreatment. The vacuum-annealed Ti18O2 at 450 C exhibited a very high spontaneous oxygen exchange activity with gaseous C16O2. A mechanism for the 18O/16O exchange process is discussed at the molecular level. The photocatalytic formation of methane, acetylene and C16O released from the Ti18O2 surface was triggered by an XeCl excimer laser irradiation.
dcterms:title
Catalytic and photocatalytic processes on 18O-labeled TiO2 Catalytic and photocatalytic processes on 18O-labeled TiO2
skos:prefLabel
Catalytic and photocatalytic processes on 18O-labeled TiO2 Catalytic and photocatalytic processes on 18O-labeled TiO2
skos:notation
RIV/61388955:_____/11:00369217!RIV12-AV0-61388955
n16:predkladatel
n17:ico%3A61388955
n3:aktivita
n7:P n7:Z
n3:aktivity
P(1M0577), Z(AV0Z40400503)
n3:dodaniDat
n19:2012
n3:domaciTvurceVysledku
n4:9704418 n4:7967748 n4:1918257 n4:5808111
n3:druhVysledku
n11:D
n3:duvernostUdaju
n21:S
n3:entitaPredkladatele
n5:predkladatel
n3:idSjednocenehoVysledku
189290
n3:idVysledku
RIV/61388955:_____/11:00369217
n3:jazykVysledku
n9:eng
n3:klicovaSlova
TiO2; photocatalysis
n3:klicoveSlovo
n15:TiO2 n15:photocatalysis
n3:kontrolniKodProRIV
[A8D23118EE6D]
n3:mistoKonaniAkce
Hnanice
n3:mistoVydani
Praha
n3:nazevZdroje
Sborník příspěvků. 5. Seminář výzkumného centra NANOPIN. Nanomateriály a fotokatalýza
n3:obor
n22:CG
n3:pocetDomacichTvurcuVysledku
4
n3:pocetTvurcuVysledku
6
n3:projekt
n13:1M0577
n3:rokUplatneniVysledku
n19:2011
n3:tvurceVysledku
Civiš, Svatopluk Koltai, J. Kürti, J. Ferus, Martin Kavan, Ladislav Zukalová, Markéta
n3:typAkce
n18:WRD
n3:zahajeniAkce
2011-06-20+02:00
n3:zamer
n20:AV0Z40400503
s:numberOfPages
3
n14:hasPublisher
Vysoká škola chemicko-technologická v Praze
n12:isbn
978-80-7080-780-4