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"Two-step" model of molecular diffusion in silicalite

Kärger, Jörg and Demontis, Pierfranco and Suffritti, Giuseppe Baldovino and Tilocca, Antonio (1999) "Two-step" model of molecular diffusion in silicalite. The Journal of Chemical Physics, Vol. 110 (2), p. 1163-1172. eISSN 1089-7690. Article.

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DOI: 10.1063/1.478158


The influence of the particle "memory" on long-range diffusion in the channel network of silicalite is taken into account by considering pairs of subsequent steps between the channel intersections. It is shown that in this case the correlation rule between the principal elements of the diffusion tensor has to be modified by including an additional term, which takes account of the deviation of molecular propagation from complete randomness. The obtained relations are discussed in terms of molecular dynamics simulations of ethane in silicalite.

Item Type:Article
ID Code:314
Uncontrolled Keywords:Minerals, diffusion, digital simulation
Subjects:Area 03 - Scienze chimiche > CHIM/02 Chimica fisica
Divisions:001 Università di Sassari > 01 Dipartimenti > Chimica
Publisher:American Institute of Physics
Publisher Policy:Depositato in conformità con la politica di copyright dell'Editore
Deposited On:18 Aug 2009 10:02

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