|
|||||
|
|
XPS and ionic conductivity studies on Li1.3Al0.15Y0.15Ti1.7(PO4)3 ceramics |
|
| Authors: | T. ?alkus E. Kazakevi?ius A. Ke?ionis V. Kazlauskien? J. Mi?kinis A. Dindune Z. Kanepe J. Ronis M. Dudek M. Bu?ko J. R. Dygas W. Bogusz A. F. Orliukas |
| Affiliation: | 1. Faculty of Physics, Vilnius University, Saul?tekio al?ja 9/3, 10222, Vilnius, Lithuania 2. Institute of Applied Research, Vilnius University, Saul?tekio al. 9/3, 10222, Vilnius, Lithuania 3. Institute of Inorganic Chemistry, Riga Technical University, Miera iela 34, 2169, Salaspils, Latvia 4. Faculty of Energy and Fuel, AGH University of Science and Technology, al. Mickiewicza 30, 30-059, Kraków, Poland 5. Faculty of Materials Science and Ceramics, AGH University of Science and Technology, al. Mickiewicza 30, 30-059, Kraków, Poland 6. Faculty of Physics, Warsaw University of Technology, ul. Koszykowa 75, 00-662, Warsaw, Poland |
| Abstract: | Li1.3Al0.15Y0.15Ti1.7(PO4)3 compound was synthesized by solid-state reaction, and ceramics were sintered. The surfaces of the ceramics were investigated by scanning electron microscopy and X-ray photoelectron spectroscopy. Li1.3Al0.15Y0.15Ti1.7(PO4)3 samples were tested in solid galvanic cells Ag|O2+CO2|Li2CO3|Li1.3Al0.15Y0.15Ti1.7(PO4)3|LiMnO2+Mn2O3|O2|Ag. The electromotive force measurements of this cell indicated that investigated samples are practically pure Li-ion conductors. Impedance spectroscopy studies have been performed in the frequency range 10?2–3·109 Hz and temperatures from ?57 °C to 334 °C. Three dispersion regions related to Li+ ionic transport in bulk, grain boundaries of the ceramics and to polarization of electrodes have been found. Total conductivity changes according to Arrhenius law in the studied temperature range, but an anomalous behavior was observed for the bulk conductivity of the ceramics. |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ | |