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Oxygen-Isotope Exchange between CO2 and Solid Ti18O2

SYSNO ASEP	0360347
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Oxygen-Isotope Exchange between CO2 and Solid Ti18O2
Author(s)	Civiš, Svatopluk (UFCH-W)_{RID, ORCID, SAI} Ferus, Martin (FZU-D) Kubát, Pavel (UFCH-W)_{RID, ORCID, SAI} Zukalová, Markéta (UFCH-W)_{RID, SAI, ORCID} Kavan, Ladislav (UFCH-W)_{RID, ORCID}
Source Title	Journal of Physical Chemistry C. - : American Chemical Society - ISSN 1932-7447 Roč. 115, č. 22 (2011), s. 11156-11162
Number of pages	7 s.
Language	eng - English
Country	US - United States
Keywords	carbon dioxide ; titanium dioxide ; surface
Subject RIV	CF - Physical ; Theoretical Chemistry
R&D Projects	IAAX00100903 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR)
	IAA400400804 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR)
	IAA400400705 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR)
	KAN200100801 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR)
	GAP208/10/1678 GA ČR - Czech Science Foundation (CSF)
	GAP208/10/2302 GA ČR - Czech Science Foundation (CSF)
	LC510 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
	OC09044 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
CEZ	AV0Z40400503 - UFCH-W (2005-2011)
	AV0Z10100523 - FZU-D (2005-2011)
UT WOS	000291079900029
DOI	10.1021/jp201935e
Annotation	The light-induced oxygen-isotope exchange between gaseous CO2 and solid (TiO2)-O-18 (anatase) and the spontaneous thermal isotope exchange that takes place between the vacuum-calcined solid (TiO2)-O-18 and CO2 were studied by gas-phase high-resolution Fourier transform infrared absorption spectroscopy over a period of several days. The absorption rovibrational spectra of all the measured carbon dioxide isotopologues were assigned and served as the quantification of the time-dependent isotope exchange between the oxygen atoms from the (TiO2)-O-18 solid and the oxygen related to the gaseous CO2. The (CO2)-O-18 was formed as the dominating final product with a minor content of (COO)-O-16-O-18. The rate of oxygen-isotope exchange is highly sensitive to the conditions of the titania pretreatment; vacuum-annealed (TiO2)-O-18 at 450 degrees C exhibited a very high spontaneous oxygen exchange activity with gaseous (CO2)-O-16.
Workplace	J. Heyrovsky Institute of Physical Chemistry
Contact	Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196
Year of Publishing	2012

Number of the records: 1