Crystals 2018, 8(3), 122; https://doi.org/10.3390/cryst8030122
Fluorine Translational Anion Dynamics in Nanocrystalline Ceramics: SrF2-YF3 Solid Solutions
1
Christian Doppler Laboratory for Lithium Batteries, and Institute for Chemistry and Technology of Materials, Graz University of Technology (NAWI Graz), Stremayrgasse 9, 8010 Graz, Austria
2
Alistore-ERI European Research Institute, 33 rue Saint Leu, 80039 Amiens, France
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Received: 24 January 2018 / Revised: 1 March 2018 / Accepted: 2 March 2018 / Published: 5 March 2018
(This article belongs to the Special Issue Ceramic Conductors)
Abstract
Nanostructured materials have already become an integral part of our daily life. In many applications, ion mobility decisively affects the performance of, e.g., batteries and sensors. Nanocrystalline ceramics often exhibit enhanced transport properties due to their heterogeneous structure showing crystalline (defect-rich) grains and disordered interfacial regions. In particular, anion conductivity in nonstructural binary fluorides easily exceeds that of their coarse-grained counterparts. To further increase ion dynamics, aliovalent substitution is a practical method to influence the number of (i) defect sites and (ii) the charge carrier density. Here, we used high energy-ball milling to incorporate YKeywords:
nanocrystalline ceramics; binary fluorides, ionic conductivity; ball milling; cation mixing; aliovalent substitution
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Breuer, S.; Stanje, B.; Pregartner, V.; Lunghammer, S.; Hanzu, I.; Wilkening, M. Fluorine Translational Anion Dynamics in Nanocrystalline Ceramics: SrF2-YF3 Solid Solutions. Crystals 2018, 8, 122.
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