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EXAFS study of Nd-exchanged Na beta″ alumina crystal and powder

✍ Scribed by Ronald Wong; W.L. Roth; Bruce Dunn; D.L. Yang


Publisher
Elsevier Science
Year
1986
Tongue
English
Weight
194 KB
Volume
18-19
Category
Article
ISSN
0167-2738

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Synchrotron X-ray single-crystal diffraction analyses revealed that as-synthesized and Na-exchanged RUB-29 (Cs 1Àx , Na x ) 14 Li 24 [Si 72 Li 18 O 172 ] . yH 2 O ðx ¼ 0; 0:9Þ displays the lattice symmetry I222. With increasing ion-exchange time, the Na cations preferentially replace Cs in the large