|
|||||
|
|
Synthesis and ionic conductivity of new layered perovskite compound, Ag2La2Ti3O10 |
|
| Authors: | Kenji Toda Jun Watanabe Mineo Sato |
| Institution: | a Department of Active Material Chemistry, Graduate School of Science and Technology, Niigata University, 8050 Ikarashi 2-nocho, Niigata-shi 950-21, Japan b Department of Chemistry and Chemical Engineering, Faculty of Engineering, Nilgata University, 8050 Ikarashi 2-nocho, Niigata-shi 950-21, Japan |
| Abstract: | A new layered perovskite compound, Ag2La2Ti3O10, was synthesized by an ion-exchange reaction of M2La2Ti3O10 (M = Na,K) with a AgNO3 molten salt. The crystal structure and the ionic conductivity of the ion-exchanged compound were investigated. The ionic conductivities attributed to the interlayer silver ions were observed at high temperatures. The ionic conductivity of Ag2La2Ti3O10 was much higher than that of Na2La2Ti3O10, while the interlayer sodium ions in Na2La2Ti3O10 and silver ions in Ag2La2Ti3O10 have almost the same rock-salt type coordination. The higher conductivity of Ag2La2Ti3O10 is probably due to the higher polarizability of silver ions. |
| Keywords: | Perovskite — layered Ion-exchange reaction Crystal structure Ionic conductivity — silver |
| 本文献已被 ScienceDirect 等数据库收录！ | |