ABOUT THE INFLUENCE OF LATTICE-VIBRATIONS ON THE DIFFUSION OF METHANEIN A CATION-FREE LTA ZEOLITE

Authors
FRITZSCHE S WOLFSBERG M HABERLANDT R DEMONTIS P SUFFRITTI GB TILOCCA A
Citation
S. Fritzsche et al., ABOUT THE INFLUENCE OF LATTICE-VIBRATIONS ON THE DIFFUSION OF METHANEIN A CATION-FREE LTA ZEOLITE, Chemical physics letters, 296(3-4), 1998, pp. 253-258
Citations number
19
Categorie Soggetti
Physics, Atomic, Molecular & Chemical
Journal title
Chemical physics letters → ACNP
ISSN journal
00092614
Volume
296
Issue
3-4
Year of publication
1998
Pages
253 - 258
Database
ISI
SICI code
0009-2614(1998)296:3-4<253:ATIOLO>2.0.ZU;2-9
Abstract
The influence of lattice vibrations on the diffusion of methane in st cation-free zeolite of structure Type LTA is examined. It is shown tha t contrary to earlier published results the self-diffusion coefficient s obtained with flexible and with rigid lattices are practically the s ame. This finding is true over a wide range of temperatures and for di fferent interaction parameters. The reason why earlier papers did not state this independence of D on the lattice vibrations is explained. ( C) 1998 Elsevier Science B.V. All rights reserved.