A new synthesis route of perovskite-related Sr2TaO3N oxynitride via Sr2Ta6O10.188

Formation process of the new layered perovskite Sr2TaO3N oxynitride having a K2NiF4-type structure from oxide precursor of Sr6Ta2O10.188 was examined under an ammonia flow. Using the oxide precursor, it is possible to make a Sr2TaO3N phase within a shorter period of the nitridation than the previous...

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Bibliographic Details
Main Authors: Sarda, Narendra G., Hayashi, Takanori, Takeuchi, Yuta, Harada, Kyosuke, Murai, Kei-Ichiro, Moriga, Toshihiro
Format: Conference Proceeding
Language:English
Subjects:
Ammonia
Perovskites
Precursors
Strontium
Online Access:Get full text
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Summary:Formation process of the new layered perovskite Sr2TaO3N oxynitride having a K2NiF4-type structure from oxide precursor of Sr6Ta2O10.188 was examined under an ammonia flow. Using the oxide precursor, it is possible to make a Sr2TaO3N phase within a shorter period of the nitridation than the previous paper reported by Marchant et al. (J. Solid State Chem., 146: 390-393(1999)). Excess amount of strontium deviated from the stoichiometric composition of Sr/Ta=2 also seemed to promote the formation of Sr2TaO3N under the ammonia flow. The synthesized Sr2TaO3N after two cycles of 24h-nitridation of the oxide precursors showed brighter reddish-orange color than SrTaO2N.
ISSN:0094-243X
1551-7616
DOI:10.1063/1.4968642