ChemInform Abstract: Yttrium, Lanthanide and Mixed Y—Ln Vanadates Prepared from Molecular Precursors Based on EDTA.

Abstract

Lanthanoids I 2800Yttrium, Lanthanide and Mixed Y-Ln Vanadates Prepared from Molecular Precursors Based on EDTA. -The compounds LnVO 4 (Ln: Y, Pr, Sm, Eu, Gd, Dy, Er) are synthesized by evaporation of aqueous solutions of (NH4)[Ln(edta)]·nH2O and (NH4)3[V(O)2(edta)]·0.5H2O followed by calcination at 800°C for 6 h. Solid solutions such as Y1-xPrxVO4 and Y1-xGdxVO4 are also obtained. The samples are characterized by powder XRD, SEM, TGA, and Raman spectroscopy. -(DELIGNE, N.; GONZE, V.; BAYOT, D.; DEVILLERS*, M.; Eur.