Soft chemistry synthesis, crystal structure and micro-structural properties of calcium-barium selenate with -AB2X5 structure

摘要

Acetate - citrate precursors were applied to synthesize amorphous gelatinous calcium barium selenate with molecular formula (Ca0.5Ba0.5Se2O5 ).The gel-product was sintering at 800oC for two hrs then well characterized by X-ray diffraction , SEM and EDX elemental analyses and proved that the product Ca0.5Ba0.5Se2O5 is mainly belong to AB2X5-type structure with average grain size ranged in between 1.2 -3.8 μm .A visualized study was constructed to confirm the molecular structure of calcium-barium selenate.