In this paper we report the preparation and characterization of Sr1xNaxSiO30.5x samples, recently proposed as oxide ion conductors. We show that Na-doping unlikely takes place in the silicate phase, and that a secondary glassy phase is at the origin of the transport properties, thereby suggesting that the conductivity is due only to a limited extent to oxide ion migration in the crystalline system.
Nature of conductivity in SrSiO3-based fast ion conductors
TEALDI, CRISTINA;MALAVASI, LORENZO;FERRARA, CHIARA;BERBENNI, VITTORIO;MUSTARELLI, PIERCARLO
2014-01-01
Abstract
In this paper we report the preparation and characterization of Sr1xNaxSiO30.5x samples, recently proposed as oxide ion conductors. We show that Na-doping unlikely takes place in the silicate phase, and that a secondary glassy phase is at the origin of the transport properties, thereby suggesting that the conductivity is due only to a limited extent to oxide ion migration in the crystalline system.File in questo prodotto:
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