Room temperature spontaneous conversion of OCS to CO2 on the anatase TiO2 surface
Language English Country Great Britain, England Media print
Document type Journal Article, Research Support, Non-U.S. Gov't
PubMed
24901888
DOI
10.1039/c4cc01992j
Knihovny.cz E-resources
- MeSH
- Carbon Dioxide chemistry metabolism MeSH
- Sulfur Oxides chemistry metabolism MeSH
- Spectroscopy, Fourier Transform Infrared methods MeSH
- Temperature * MeSH
- Titanium chemistry MeSH
- Publication type
- Journal Article MeSH
- Research Support, Non-U.S. Gov't MeSH
- Names of Substances
- carbonyl sulfide MeSH Browser
- Carbon Dioxide MeSH
- Sulfur Oxides MeSH
- Titanium MeSH
- titanium dioxide MeSH Browser
High-resolution FT-IR spectroscopy combined with quantum chemical calculations was used to study the chemistry of OCS-disproportionation over the reduced surface of isotopically labelled, nanocrystalline TiO2. Analysis of the isotopic composition of the product gases has revealed that the reaction involves solely OCS molecules from the gas-phase. Using quantum chemical calculations we propose a plausible mechanistic scenario, in which two reduced Ti(3+) centres mediate the reaction of the adsorbed OCS molecules.
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