Paper Title:
Diffusion in Nanocrystalline Ion Conductors Studied by Solid State NMR and Impedance Spectroscopy
  Abstract

Materials with an average particle size of less than about 50 nm often show new or at least enhanced physical properties. In many cases nanocrystalline ionic conductors exhibit a high increase of cation, e. g. Li+, or anion, e. g. F−, diffusivity. In the present contribution we review recent studies on ion dynamics in nanocrystalline ion conductors, both single-phase systems and composites, being prepared by high-energy ball milling. These include, e.g., LiTaO3, Li2O:Al2O3, LiF:Al2O3, BaF2, CaF2, BaF2:CaF2 and (BaF2:CaF2):Al2O3. Dynamic properties were probed by 7Li and/or 19F NMR line shape and relaxation as well as ion conductivity measurements.

  Info
Periodical
Defect and Diffusion Forum (Volumes 283-286)
Edited by
Andreas Öchsner, Graeme E. Murch and Ali Shokuhfar
Pages
705-715
DOI
10.4028/www.scientific.net/DDF.283-286.705
Citation
P. Heitjans, M. Wilkening, "Diffusion in Nanocrystalline Ion Conductors Studied by Solid State NMR and Impedance Spectroscopy", Defect and Diffusion Forum, Vols. 283-286, pp. 705-715, 2009
Online since
March 2009
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$32.00
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