Raman spectra of titanium dioxide (anatase, rutile) with identified oxygen isotopes (16, 17, 18)
Language English Country England, Great Britain Media print-electronic
Document type Journal Article, Research Support, Non-U.S. Gov't
PubMed
23014450
DOI
10.1039/c2cp42763j
Knihovny.cz E-resources
- MeSH
- Oxygen Isotopes chemistry MeSH
- Quantum Theory MeSH
- Spectrum Analysis, Raman MeSH
- Temperature MeSH
- Titanium chemistry MeSH
- Publication type
- Journal Article MeSH
- Research Support, Non-U.S. Gov't MeSH
- Names of Substances
- Oxygen Isotopes MeSH
- Titanium MeSH
- titanium dioxide MeSH Browser
Six representative isotope-labeled samples of titanium dioxide were synthesized: Ti(16)O(2), Ti(17)O(2) and Ti(18)O(2), each in anatase and rutile forms. Their Raman scattering was analyzed at temperatures down to 5 K. Spectral assignment was supported by numerical simulation using DFT calculations. The combination of experimental and theoretical Raman frequencies with the corresponding isotopic shifts allowed us to address various still-open questions about the second-order Raman scattering in rutile, and the analysis of overlapping features in the anatase spectrum.
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