ISSN:
1572-879X
Keywords:
Y zeolite
;
Eu luminescence
;
cation binding
;
catalysis
;
cation migration
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Notes:
Abstract Time-resolved spectra and kinetic profiles as well as static spectra of Eu luminescence are measured to understand the binding site characteristics and migration of catalytically important metal cations in Y zeolite. As calcination temperature increases, stoichiometrically exchanged Eu3+ ions, initially hydrated at indefinite sites in the supercage, pass through site II' to migrate into sites I and I' first and the remnants, after binding at sites I and I', stay at site II'.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1023/A:1019080506836