Solid state NMR characterization of lithium conducting ceramics

Nairn, K. M., Forsyth, M., Greville, M., MacFarlane, D. R. and Smith, M. E. 1996, Solid state NMR characterization of lithium conducting ceramics, Solid state ionics, vol. 86-88, no. Part 2, pp. 1397-1402, doi: 10.1016/0167-2738(96)00320-7.

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Title Solid state NMR characterization of lithium conducting ceramics
Author(s) Nairn, K. M.
Forsyth, M.ORCID iD for Forsyth, M.
Greville, M.
MacFarlane, D. R.
Smith, M. E.
Journal name Solid state ionics
Volume number 86-88
Issue number Part 2
Start page 1397
End page 1402
Publisher Elsevier
Place of publication Amsterdam, The Netherlands
Publication date 1996-07
ISSN 0167-2738
Keyword(s) 7Li NMR
ionic conduction
quadrupole interaction
Summary 7Li solid state NMR has been used to characterize lithium aluminium titanium phosphate and lithium lanthanum titanate ceramics. Both materials have high ionic mobilities at room temperature and this is reflected in their static 7Li powder patterns. In the case of the phosphate based ceramic, a narrow Lorentzian peak is observed above 300 K, which narrows further with increasing temperature. The accompanying quadrupolar structure, with CQ (quadrupolar coupling constant) ~ 40 kHz, suggests that the lithium ions are hopping rapidly between equivalent, high electric field gradient sites. The 27Al and 31P magic angle spinning (MAS) spectra reveal an asymmetric phosphorus peak and two distinct aluminium resonances. The room temperature powder pattern of Li0.33La0.57TiO3 shows a dipolar broadened peak which narrows quite suddenly at 310 K revealing quadrupolar satellites with CQ ~ 900 Hz. A second lithium site is also observed in this material, as indicated by a further, weaker quadrupolar structure (CQ ~ 40 kHz).
Language eng
DOI 10.1016/0167-2738(96)00320-7
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 ©1996, Elsevier Science B.V.
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