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Synthesis and ionic conductivity of new layered perovskite compound, Ag2La2Ti3O10

โœ Scribed by Kenji Toda; Jun Watanabe; Mineo Sato

Publisher
Elsevier Science
Year
1996
Tongue
English
Weight
421 KB
Volume
90
Category
Article
ISSN
0167-2738

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โœฆ Synopsis

A new layered perovskite compound, Ag,La,Ti,O,,, was synthesized by an ion-exchange reaction of M,La,Ti,O ," (M = Na,K) with a AgNO, molten salt. The crystal structure and the ionic conductivity of the ion-exchanged compound were investigated. The ionic conductivities attributed to the interlayer silver ions were observed at high temperatures. The ionic conductivity of Ag,La,Ti,O,, was much higher than that of Na,La,Ti,O,,, while the interlayer sodium ions in Na,La,Ti,O,, and silver ions in Ag,La,Ti,O,, have almost the same rock-salt type coordination. The higher conductivity of AgZLa,Ti,O,, is probably due to the higher polarizability of silver ions.

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