About: Spontaneous and Photoinduced Conversion of CO2 on TiO2 Anatase (001)/(101) Surfaces

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About: Spontaneous and Photoinduced Conversion of CO2 on TiO2 Anatase (001)/(101) Surfaces Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	High-resolution FT-IR spectroscopy was used to study the kinetics of oxygen mobility between gaseous isotopically labeled C18O2 and solid phase Ti16O2 nanocrystalline anatase (001). Analysis of the isotopic composition of the gases produced has revealed that anatase (001) calcinated at temperatures under 500 °C is a very weakly reactive material and exhibits a low exchange mobility of oxygen atoms between the gas phase molecules of CO2 and the TiO2 lattice. Isotope exchange is blocked by both residual HF adsorbed onto the TiO2 surface and TiOF2 impurities. The presence of TiOF2 was shown by TEM and X-ray diffraction. However, the anatase (001) sample became slightly active after annealing at temperatures higher than 500 °C and upon UV illumination. Nevertheless, the effective rate constant is still 3.45 times lower than that observed for the spontaneous exchange between C18O2 and anatase (101) material calcinated at 500 °C. High-resolution FT-IR spectroscopy was used to study the kinetics of oxygen mobility between gaseous isotopically labeled C18O2 and solid phase Ti16O2 nanocrystalline anatase (001). Analysis of the isotopic composition of the gases produced has revealed that anatase (001) calcinated at temperatures under 500 °C is a very weakly reactive material and exhibits a low exchange mobility of oxygen atoms between the gas phase molecules of CO2 and the TiO2 lattice. Isotope exchange is blocked by both residual HF adsorbed onto the TiO2 surface and TiOF2 impurities. The presence of TiOF2 was shown by TEM and X-ray diffraction. However, the anatase (001) sample became slightly active after annealing at temperatures higher than 500 °C and upon UV illumination. Nevertheless, the effective rate constant is still 3.45 times lower than that observed for the spontaneous exchange between C18O2 and anatase (101) material calcinated at 500 °C. (en)
Title	Spontaneous and Photoinduced Conversion of CO2 on TiO2 Anatase (001)/(101) Surfaces Spontaneous and Photoinduced Conversion of CO2 on TiO2 Anatase (001)/(101) Surfaces (en)
skos:prefLabel	Spontaneous and Photoinduced Conversion of CO2 on TiO2 Anatase (001)/(101) Surfaces Spontaneous and Photoinduced Conversion of CO2 on TiO2 Anatase (001)/(101) Surfaces (en)
skos:notation	RIV/61388955:_____/14:00437179!RIV15-GA0-61388955
http://linked.open...avai/riv/aktivita	I P
http://linked.open...avai/riv/aktivity	I, P(GAP108/12/0814), P(LD13060), P(LD14115)
http://linked.open...iv/cisloPeriodika	46
http://linked.open...vai/riv/dodaniDat	2015
http://linked.open...aciTvurceVysledku	Civiš, Svatopluk Zukalová, Markéta Kavan, Ladislav Zukal, Arnošt
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Ústav fyzikální chemie J. Heyrovského AV ČR, v.v.i.
http://linked.open...dnocenehoVysledku	46771
http://linked.open...ai/riv/idVysledku	RIV/61388955:_____/14:00437179
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	TiO2; FT-IR spectroscopy; nanocrystalline anatase (en)
http://linked.open.../riv/klicoveSlovo	FT-IR spectroscopy TiO2 nanocrystalline anatase
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[147215579B04]
http://linked.open...i/riv/nazevZdroje	Journal of Physical Chemistry C
http://linked.open...in/vavai/riv/obor	CF
http://linked.open...ichTvurcuVysledku	4 (xsd:int)
http://linked.open...cetTvurcuVysledku	6 (xsd:int)
http://linked.open...vavai/riv/projekt	Hierarchical metal oxide architecture for dye-sensitized solar cells Metal oxide nanoparticles and their reactivity studied by high resolution FT infrared spectroscopy Electrons injection into Ti(IV) based oxidic materials: Application in Li-ion batteries and solar cells.
http://linked.open...UplatneniVysledku	2014
http://linked.open...v/svazekPeriodika	118
http://linked.open...iv/tvurceVysledku	Civiš, Svatopluk Ferus, Martin Klementová, Mariana Kavan, Ladislav Zukalová, Markéta Zukal, Arnošt
http://linked.open...ain/vavai/riv/wos	000345474000047
issn	1932-7447
number of pages	6 (xsd:int)
http://bibframe.org/vocab/doi	10.1021/jp5090668

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