Crystal and electronic structure of lithiated nanosized rutile TiO2 by electron diffraction and electron energy-loss spectroscopy

C. M. Wang, Z. G. Yang, S. Thevuthasan, J. Liu, D. R. Baer, D. Choi, D. H. Wang, J. G. Zhang, L. V. Saraf, Z. M. Nie

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Abstract

The crystal and electronic structure of the lithiated nanosized rutile TiO2 were studied using electron diffraction and electron energy-loss spectroscopy (EELS) in a transmission electron microscopy. EELS reveals the Li K -edge at the energy-loss position of ∼61 eV. After lithiation, the t2g - eg crystal-field splitting on both Ti L2,3 -edge and O K -edge decreases, the O K -edge shifts toward a higher energy-loss position and the separation between the pre-edge peak and main peak on the O K -edge decreases, suggesting that the lithiation of rutile TiO2 was accompanied by the reduction in Ti ion, indicating a charge transfer from Li to Ti.

Original languageEnglish (US)
Article number233116
JournalApplied Physics Letters
Volume94
Issue number23
DOIs
StatePublished - 2009

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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    Wang, C. M., Yang, Z. G., Thevuthasan, S., Liu, J., Baer, D. R., Choi, D., Wang, D. H., Zhang, J. G., Saraf, L. V., & Nie, Z. M. (2009). Crystal and electronic structure of lithiated nanosized rutile TiO2 by electron diffraction and electron energy-loss spectroscopy. Applied Physics Letters, 94(23), [233116]. https://doi.org/10.1063/1.3152783