ESR AND OPTICAL STUDIES OF CATIONIC SILVER CLUSTERS IN ZEOLITE-RHO

Authors
MICHALIK J SADLO J KODAIRA T SHIMOMURA S YAMADA H
Citation
J. Michalik et al., ESR AND OPTICAL STUDIES OF CATIONIC SILVER CLUSTERS IN ZEOLITE-RHO, Journal of radioanalytical and nuclear chemistry, 232(1-2), 1998, pp. 135-137
Citations number
8
Categorie Soggetti
Chemistry Inorganic & Nuclear","Chemistry Analytical","Nuclear Sciences & Tecnology
Journal title
Journal of radioanalytical and nuclear chemistry → ACNP
ISSN journal
02365731
Volume
232
Issue
1-2
Year of publication
1998
Pages
135 - 137
Database
ISI
SICI code
0236-5731(1998)232:1-2<135:EAOSOC>2.0.ZU;2-R
Abstract
Silver cationic clusters formed in gamma-irradiated AgCs-rho zeolites in hydrated and dehydrated forms have been studied by electron spin re sonance (ESR) spectroscopy and diffuse reflectance spectrophotometry. It was found that tetrameric silver clusters, Ag-4(3+) in dehydrated z eolites and Ag-4(2+) in hydrated samples, are stabilized at room tempe rature. Tetrameric silver is trapped inside octagonal prism of zeolite framework and does not show any noticeable decay as far as samples ar e evacuated.