期刊
ELECTROCHEMISTRY
卷 77, 期 2, 页码 158-160出版社
ELECTROCHEMICAL SOC JAPAN
DOI: 10.5796/electrochemistry.77.158
关键词
Crystal Structure; Electron Density; High Temperature Protonic Conduction; Gallate
资金
- MEXT, HAITEKU
In this work, we synthesized LaBaGaO4 and LaBaGa0.95Mg0.05O4-delta , and investigated their crystal and electronic structures and electrical conduction properties. As a result, it was indicated that LaBaGaO4 had an orthorhombic structure (S.G.; P2(I)2(I)2(I)) at 298 and 900 K. The orthorhombic structure was kept even after Mg-doping although the electronic structure seemed to be varied maybe due to a partial substitution of Mg2+ for Ga3+. From an H/D isotope effect on conductivity, it was confirmed that LaBaGa0.95Mg0.05O4-delta exhibited protonic conduction at elevated temperatures under a moisturized condition.
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