Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1297212 | Solid State Ionics | 2006 | 6 Pages |
Abstract
A new series of columnar phases Ln2/3â¡1/3[Bi12O14](MoO4)5 (â¡ vacancy) with Ln = La, Nd, Gd, Ho and Yb have been synthesized and structurally characterized. They feature the same formula as the molybdate phase Bi2/3â¡1/3[Bi12O14](MoO4)5 and crystallize in the monoclinic system, space group P2/c. These phases are isostructural with the prototype structure Bi[Bi12O14](MoO4)4(VO4). Pellets of this rare-earth series obtained by spark plasma sintering and measured by impedance spectroscopy show a good anionic conductivity with a parabolic evolution whose maximum is raised by the Gd species at a determined value Ï = 6.6 Ã 10â 3 S cmâ 1 at 980 K.
Related Topics
Physical Sciences and Engineering
Chemistry
Electrochemistry
Authors
Jean Galy, Philippe Salles, Patrick Rozier, Alicia Castro,