Structural characterization and thermal behavior of lanthanide(III)-vanadium(V)-oxide xerogels

Authors
Oliveira, HP Anaissi, FJ Toma, HE
Citation
Hp. Oliveira et al., Structural characterization and thermal behavior of lanthanide(III)-vanadium(V)-oxide xerogels, MATER RES B, 33(12), 1998, pp. 1783-1792
Citations number
29
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Material Science & Engineering
Journal title
MATERIALS RESEARCH BULLETIN
ISSN journal
00255408 → ACNP
Volume
33
Issue
12
Year of publication
1998
Pages
1783 - 1792
Database
ISI
SICI code
0025-5408(199812)33:12<1783:SCATBO>2.0.ZU;2-L
Abstract
Lanthanide ions react with vanadium(V)-oxide xerogels forming intercalation compounds. In contrast to the pure vanadium(V)-oxide matrix, the removal o f the water molecules from the interlamellar space and from the lanthanide coordination shell is practically complete at 150 degrees C, disrupting the bidimensional layered structure. The heating above 450 degrees C leads to the formation of orthorhombic V2O5 and tetragonal lanthanide orthovanadates . (C) 1999 Elsevier Science Ltd.