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SrSn1−xFexO3−δ (0≤x≤1) perovskites: a novel mixed oxide ion and electronic conductor |
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| Authors: | V ThangaduraiP Schmid-Beurmann W Weppner |
| Affiliation: | a Chair for Sensors and Solid State Ionics, Faculty of Engineering, University of Kiel, Kaiserstr. 2, 24143 Kiel, Germany b Institute for Geosciences, University of Kiel, Ohlshausenstr. 40, 24098 Kiel, Germany |
| Abstract: | The electrical conductivity of SrSn1−xFexO3−δ increases with the Fe content and reaches a value of ∼10−1 S/cm at 25°C at x=1. Compounds with low Fe content exhibit both ionic and electronic conductivity, while the higher Fe content perovskites are mainly electronic conductors with a conductivity independent of the oxygen partial pressure over a wide range from 0.21 to 10−22 atm. |
| Keywords: | A Ceramics A Semiconductors A Oxide C Impedance spectroscopy C Electrochemical measurements D Electrical properties D Ionic conductivity |
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