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Angew Chem Int Ed Engl
; 51(20): 4848-51, 2012 May 14.
Article
in English
| MEDLINE
| ID: mdl-22473627
ABSTRACT
High-pressure ion exchange of small-pore zeolite K-natrolite allows immobilization of nominally non-exchangeable aliovalent cations such as trivalent europium. A sample exchanged at 3.0(1) GPa and 250 °C contains about 4.7 Eu(III) ions per unit cell, which is equivalent to over 90 % of the K(+) cations being exchanged.
