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Title: In situ X-ray diffraction of lithium intercalation in nanostructured and thin film anatase TiO{sub 2}

Abstract

Current research on lithium-ion intercalation materials focuses on the development of cheap and efficient lithium-ion batteries. Nanostructured anatase TiO{sub 2} is an interesting candidate as electrode material in rocking-chair type lithium batteries. In addition to its ability to store charge in the form of lithium ions, it also exhibits electrochromic properties, and has attracted widespread attention with regard to its use in dye-sensitized solar cells. Electrochemical lithium intercalation in thin films of porous nanostructured TiO{sub 2} and dense electron-beam evaporated TiO{sub 2} (anatase) is investigated with in situ X-ray diffraction (XRD). A complete and reversible phase transformation from tetragonal anatase TiO{sub 2} to orthorhombic anatase Li{sub 0.5}TiO{sub 2} is observed. The maximum amount of lithium that can be dissolved in anatase TiO{sub 2} before the phase transformation occurs is estimated to be 0.05 Li/Ti. For nanostructured samples, the XRD spectra before and after insertion were fitted with some of the lattice parameters of the two phases as fit variables. For the Li{sub 0.5}TiO{sub 2} phase, values of 3.85, 4.06, and 8.95 {angstrom} are found for the a, b, and c, axes, respectively, in good agreement with data reported for chemically lithiated anatase TiO{sub 2} powder. Implications of the phase transitionmore » for the analysis of optical and electrochemical measurements on TiO{sub 2} films are briefly discussed.« less

Authors:
; ;
Publication Date:
Research Org.:
Delft Univ. of Technology (NL)
OSTI Identifier:
20003166
Alternate Identifier(s):
OSTI ID: 20003166
Resource Type:
Journal Article
Journal Name:
Journal of the Electrochemical Society
Additional Journal Information:
Journal Volume: 146; Journal Issue: 9; Other Information: PBD: Sep 1999
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 25 ENERGY STORAGE; 14 SOLAR ENERGY; LITHIUM; ELECTRIC BATTERIES; TITANIUM OXIDES; THIN FILMS; SOLAR CELLS; PHASE TRANSFORMATIONS; CLATHRATES; ELECTROCHROMISM; OPTICAL PROPERTIES

Citation Formats

Krol, R. van de, Goossens, A., and Meulenkamp, E.A. In situ X-ray diffraction of lithium intercalation in nanostructured and thin film anatase TiO{sub 2}. United States: N. p., 1999. Web. doi:10.1149/1.1392447.
Krol, R. van de, Goossens, A., & Meulenkamp, E.A. In situ X-ray diffraction of lithium intercalation in nanostructured and thin film anatase TiO{sub 2}. United States. doi:10.1149/1.1392447.
Krol, R. van de, Goossens, A., and Meulenkamp, E.A. Wed . "In situ X-ray diffraction of lithium intercalation in nanostructured and thin film anatase TiO{sub 2}". United States. doi:10.1149/1.1392447.
@article{osti_20003166,
title = {In situ X-ray diffraction of lithium intercalation in nanostructured and thin film anatase TiO{sub 2}},
author = {Krol, R. van de and Goossens, A. and Meulenkamp, E.A.},
abstractNote = {Current research on lithium-ion intercalation materials focuses on the development of cheap and efficient lithium-ion batteries. Nanostructured anatase TiO{sub 2} is an interesting candidate as electrode material in rocking-chair type lithium batteries. In addition to its ability to store charge in the form of lithium ions, it also exhibits electrochromic properties, and has attracted widespread attention with regard to its use in dye-sensitized solar cells. Electrochemical lithium intercalation in thin films of porous nanostructured TiO{sub 2} and dense electron-beam evaporated TiO{sub 2} (anatase) is investigated with in situ X-ray diffraction (XRD). A complete and reversible phase transformation from tetragonal anatase TiO{sub 2} to orthorhombic anatase Li{sub 0.5}TiO{sub 2} is observed. The maximum amount of lithium that can be dissolved in anatase TiO{sub 2} before the phase transformation occurs is estimated to be 0.05 Li/Ti. For nanostructured samples, the XRD spectra before and after insertion were fitted with some of the lattice parameters of the two phases as fit variables. For the Li{sub 0.5}TiO{sub 2} phase, values of 3.85, 4.06, and 8.95 {angstrom} are found for the a, b, and c, axes, respectively, in good agreement with data reported for chemically lithiated anatase TiO{sub 2} powder. Implications of the phase transition for the analysis of optical and electrochemical measurements on TiO{sub 2} films are briefly discussed.},
doi = {10.1149/1.1392447},
journal = {Journal of the Electrochemical Society},
number = 9,
volume = 146,
place = {United States},
year = {1999},
month = {9}
}