A New Oxide Ion Conductor: La3GaMo2O12
Tian Xia
Key Laboratory of Rare Earth Chemistry and Physics, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, China
Graduate School of the Chinese Academy of Sciences, Beijing 100049, China
Search for more papers by this authorJia-Yan Li
Key Laboratory of Rare Earth Chemistry and Physics, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, China
Graduate School of the Chinese Academy of Sciences, Beijing 100049, China
Search for more papers by this authorQin Li
Key Laboratory of Rare Earth Chemistry and Physics, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, China
Graduate School of the Chinese Academy of Sciences, Beijing 100049, China
Search for more papers by this authorXiang-Dong Liu
Key Laboratory of Rare Earth Chemistry and Physics, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, China
Graduate School of the Chinese Academy of Sciences, Beijing 100049, China
Search for more papers by this authorJian Meng
Key Laboratory of Rare Earth Chemistry and Physics, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, China
Search for more papers by this authorTian Xia
Key Laboratory of Rare Earth Chemistry and Physics, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, China
Graduate School of the Chinese Academy of Sciences, Beijing 100049, China
Search for more papers by this authorJia-Yan Li
Key Laboratory of Rare Earth Chemistry and Physics, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, China
Graduate School of the Chinese Academy of Sciences, Beijing 100049, China
Search for more papers by this authorQin Li
Key Laboratory of Rare Earth Chemistry and Physics, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, China
Graduate School of the Chinese Academy of Sciences, Beijing 100049, China
Search for more papers by this authorXiang-Dong Liu
Key Laboratory of Rare Earth Chemistry and Physics, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, China
Graduate School of the Chinese Academy of Sciences, Beijing 100049, China
Search for more papers by this authorJian Meng
Key Laboratory of Rare Earth Chemistry and Physics, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, China
Search for more papers by this authorAbstract
A new oxide ion conductor, La3GaMo2O12, with a bulk conductivity of 2.7×10−2 S·cm−1 at 800 °C in air atmosphere was prepared by the traditional solid-state reaction. The room temperature X-ray diffraction data could be indexed on a monoclinic cell with lattice parameters of a=0.5602(2) nm, b=0.3224(1) nm, c=1.5741(1) nm, β=102.555(0)°, V=0.2775(2) nm3 and space group Pc(7). Ac impedance measurements in various atmospheres further support that it is an oxide ion conductor. This material was stable in various atmospheres with oxygen partial pressure p(O2) ranging from 1.0×105 to 1.0×10−7 Pa at 800 °C. A reversible polymorphic phase transition occurred at elevated temperatures as confirmed by the differential thermal analysis and dilatometric measurement.
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