Title of article :
Investigation of chemical state of Fe and oxide ion deficiency in La1 − xSrxGa1 − y − zFeyMgzO3 − δ by Mössbauer spectroscopy
Author/Authors :
Wakamatsu، نويسنده , , O. and Yamaguchi، نويسنده , , M. and Fumoto، نويسنده , , T. and Hashimoto، نويسنده , , T. and Kuno، نويسنده , , A. and Matsuo، نويسنده , , M.، نويسنده ,
Issue Information :
هفته نامه با شماره پیاپی سال 2008
Abstract :
Mössbauer spectroscopy was carried out for analysis of chemical state of Fe in La1 − xSrxGa1 − y − zFeyMgzO3 − δ system, which attracts interest as new oxide ion conductor operated around 600 °C. It was revealed that significant amount of holes were induced by partial Mg substitution for Sr-free LaGa0.8 − xFe0.2MgxO3 − δ, while largeδ can be generated by Sr substitution of La1 − xSrxGa0.7Fe0.2 Mg0.1O3 − δ system. This showed agreement with high oxide ion conductivity and transference number of oxide ion in La0.7Sr0.3 Ga0.7Fe0.2Mg0.1O3 − δ.
Keywords :
? , ? , Oxide ion deficiency , oxide ion conductor , Mixed conduction , ? , La1 , y , ? , zFeyMgzO3 , xSrxGa1 , ? , M?ssbauer spectroscopy
Journal title :
Solid State Ionics
Journal title :
Solid State Ionics
