Hydrothermal synthesis and characterization of nanocrystalline pyrochlore oxides M2Sn2O7 (M = La, Bi, Gd or Y)

Authors
Mao, YC Li, GS Xu, W Feng, SH
Citation
Yc. Mao et al., Hydrothermal synthesis and characterization of nanocrystalline pyrochlore oxides M2Sn2O7 (M = La, Bi, Gd or Y), J MAT CHEM, 10(2), 2000, pp. 479-482
Citations number
12
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Material Science & Engineering
Journal title
JOURNAL OF MATERIALS CHEMISTRY
ISSN journal
09599428 → ACNP
Volume
10
Issue
2
Year of publication
2000
Pages
479 - 482
Database
ISI
SICI code
0959-9428(200002)10:2<479:HSACON>2.0.ZU;2-7
Abstract
A family of pyrochlore stannates, M2Sn2O7 (M = La, Bi, Gd or Y) has been pr epared from hydrothermal systems at 240 degrees C and structurally characte rized by powder X-ray diffraction, transmission electron microscopy and dif ferential thermal analysis. The La and Bi stannates showed nanocrystalline characteristics with average particle sizes of ca. 20 nm. Hydrothermally sy nthesized pyrochlore stannates were thermally stable and showed ionically c onducting properties at high temperatures.