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From thermodynamic cell models to partitioning cellular automata for diffusion in zeolites: I. Structure of the algorithm

Pazzona, Federico Giovanni and Demontis, Pierfranco and Suffritti, Giuseppe Baldovino (2009) From thermodynamic cell models to partitioning cellular automata for diffusion in zeolites: I. Structure of the algorithm. The Journal of Chemical Physics, Vol. 131 (23), p. 234703/1-15. eISSN 1089-7690. Article.

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DOI: 10.1063/1.3267635

Abstract

In the study of adsorption of simple adsorbates in microporous materials like zeolites, thermodynamic models of small grand-canonical cells with very local interactions [ e.g., see K. G. Ayappa, J. Chem. Phys. 111, 4736 (1999) ] have been proven to be able to produce thermodynamic properties in very good agreement with the results of experiments and atomistic simulations. In this paper we present in details the structure and implementation of a thermodynamic partitioning cellular automaton (PCA) devised as a dynamical version of thermodynamic cell models and proposed as an easy environment to perform coarse-grained simulations of adsorption/diffusion of simple interacting molecules in microporous materials. Local evolution rules and memory effects are introduced to make our PCA able to complete the static picture provided by thermodynamic cell models with the simulation of transport properties.

Item Type:Article
ID Code:3759
Status:Published
Refereed:Yes
Uncontrolled Keywords:Adsorption, cellular automata, diffusion, porous materials, thermodynamic properties, zeolites
Subjects:Area 03 - Scienze chimiche > CHIM/02 Chimica fisica
Divisions:002 Altri enti e centri di ricerca del Nord Sardegna > INSTM-Consorzio Interuniversitario Nazionale per la Scienza e la Tecnologia dei Materiali, Unità di ricerca di Sassari
001 Università di Sassari > 01 Dipartimenti > Chimica
Publisher:American Institute of Physics
eISSN:1089-7690
Deposited On:23 Apr 2010 12:03

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