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Double Phosphates of Ce(IV) and Some Mono- and Bivalent Elements

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Abstract

A series of double Ce(IV) orthophosphates NaCe2(PO4)3 and B0.5Ce2(PO4)3 (B = Mg, Ca, Sr, Cd) was prepared by heat treatment of gels with the stoichiometric content of the components. These phosphates were characterized by powder X-ray diffraction, IR spectroscopy, and electron spin resonance. The com- pounds have the monazite structure. The unit cell parameters of the phosphates were determined. The crystal structure of the phosphates is stable at temperatures from 20 to 1600°C. The crystallographic parameters of the double Ce(IV) orthophosphates were compared with those of simple Ce(III) phosphate CePO4 which is artificial analog of monazite. Crystal chemical features of formation of double phosphates of tetravalent f elements and mono- and bivalent elements were discussed.

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Authors and Affiliations

  1. Lobachevskii State University, Nizhni Novgorod, Russia

    A. I. Orlova, D. B. Kitaev, V. I. Pet'kov & M. L. Spiridonova

  2. Research Institute of Atomic Reactors, State Scientific Center of Russian Federation, Dimitrovgrad, Russia

    Yu. F. Volkov

  3. Moscow State University, Moscow, Russia

    V. S. Kurazhkovskaya

Authors
  1. A. I. Orlova
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  2. D. B. Kitaev
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  3. Yu. F. Volkov
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  4. V. I. Pet'kov
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  5. V. S. Kurazhkovskaya
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  6. M. L. Spiridonova
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Orlova, A.I., Kitaev, D.B., Volkov, Y.F. et al. Double Phosphates of Ce(IV) and Some Mono- and Bivalent Elements. Radiochemistry 43, 225–228 (2001). https://doi.org/10.1023/A:1012844121536

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  • DOI: https://doi.org/10.1023/A:1012844121536

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