Hydrothermal synthesis and characterization of Na3Y(PO4)2 phosphate

The Na3Y(PO4)2 phosphate has been obtained by hydrothermal route and characterized by powder XRD, differential scanning calorimetry/thermogravimetric analysis (DSC/TGA), SEM and FTIR spectroscopy. The effect of synthesis conditions as well as the addition of complexing agents and surfactants on phase purity and microstructure of synthesized powders has been studied. The powders obtained by the hydrothermal technique exhibit uniform spindle-shape. The Na3Y(PO4)2 compound shows three polymorphic transitions and can be crystallized in trigonal, monoclinic and/or orthorhombic structure.