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Europium and Cesium Ion Immobilization in Crystalline Hosts with Magnetoplumbite or Related Type Structures

Published online by Cambridge University Press:  25 February 2011

J. Thery ,
C. Borel  and
D. Vivien
J. Thery
Affiliation:
Chimie Appliquée de I'Etat Solide, ENSCP 11 rue P. et M. Curie, 75231 Paris cedex 05, France
C. Borel
Affiliation:
Chimie Appliquée de I'Etat Solide, ENSCP 11 rue P. et M. Curie, 75231 Paris cedex 05, France
D. Vivien
Affiliation:
Chimie Appliquée de I'Etat Solide, ENSCP 11 rue P. et M. Curie, 75231 Paris cedex 05, France
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Abstract

This study deals with the incorporation of Eu3+ ions in aluminates with magnetoplumbite (MP) or mixed β alumina - MP type structure. The synthesis procedure is the coprecipitation from a nitric solution. Partial substitution of Eu3+ byLa3+ increases the thermal stability range of the phases. In these structuresEu3+ occupies several sites and in the case of Na+ containing phases, Eu3+ and Na+ coexist at some mirror planes. Some results concerning Cs+ ion immobilization in mixed β - MP structures, by ionic exchange in molten salt are also reported.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 257: Symposium – Scientific Basis for Nuclear Waste Management XV , 1991 , 265
Copyright
Copyright © Materials Research Society 1992

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References

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