Synthesis and study of the phosphate Cs2Mn0.5Zr1.5(PO4)3 |
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| Authors: | A. R. Zaripov V. A. Orlova V. I. Pet’kov O. M. Slyunchev D. D. Galuzin S. I. Rovnyi |
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| Affiliation: | (1) Mayak Production Association, Ozersk, Russia;(2) Nizhni Novgorod State University, pr. Gagarina 23, Nizhni Novgorod, 603950, Russia |
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| Abstract: | The new phosphate Cs2Mn0.5Zr1.5(PO4)3 was synthesized for the first time and characterized by X-ray diffraction. Its crystal structure was refined in space group P213, Z = 4 at 25°C (a = 10.3163(1) Å, V = 1097.93(1) Å3), by the Rietveld method using the powder X-ray diffraction data. The structure is built of an octahedral-tetrahedral framework {[Mn0.5Zr1.5(PO4)3]2?}3∞ with cesium atoms being located in large cavities. The hydrolytic stability of the powdered phosphate containing 137Cs radionuclide was studied. The minimum achieved 137Cs leaching rate was 4 × 10?8 g/cm2 day. |
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