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Stoichiometric changes in lithium conducting materials based on Li1+xAlxTi2−x(PO4)3: impedance, X-ray and NMR studies

Best, A. S., Forsyth, M. and MacFarlane, D. R. 2000, Stoichiometric changes in lithium conducting materials based on Li1+xAlxTi2−x(PO4)3: impedance, X-ray and NMR studies, Solid state ionics, vol. 136-137, pp. 339-344.

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Title Stoichiometric changes in lithium conducting materials based on Li1+xAlxTi2−x(PO4)3: impedance, X-ray and NMR studies
Formatted title Stoichiometric changes in lithium conducting materials based on Li1+xAlxTi2−x(PO4)3: impedance, X-ray and NMR studies
Author(s) Best, A. S.
Forsyth, M.
MacFarlane, D. R.
Journal name Solid state ionics
Volume number 136-137
Start page 339
End page 344
Publisher Elsevier
Place of publication Amsterdam, The Netherlands
Publication date 2000-11-02
ISSN 0167-2738
1872-7689
Keyword(s) LATP
conductivity
x-ray powder diffraction
solid state nuclear magnetic resonance
Summary The lithium fast-ion conductor, Li1+xAlxTi2−x(PO4)3 (LATP) has been modified via changes in stoichiometry during the processing steps. The resultant changes have been followed using 27Al MAS NMR, X-ray powder diffraction and impedance spectroscopy. The most important changes were those of the form Li1.3+4yAl0.3Ti1.7−y(PO4)3. It was possible to remove the AlPO4 phase (both tridymite and berlinite polymorphs), as monitored by X-ray diffractograms and 27Al NMR spectra. Consequently, these changes appear to result in increased grain boundary conductivity of the LATP material.
Language eng
Field of Research 039999 Chemical Sciences not elsewhere classified
Socio Economic Objective 970103 Expanding Knowledge in the Chemical Sciences
HERDC Research category C1.1 Refereed article in a scholarly journal
Copyright notice ©2000, Elsevier Science B.V.
Persistent URL http://hdl.handle.net/10536/DRO/DU:30030061

Document type: Journal Article
Collection: Institute for Technology Research and Innovation
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