Structure, energetics and diffusion properties of isomers of trimethyl benzene in beta zeolite: Uptake and Monte Carlo simulation study

Varanasi, Srinivasa Rao and Kumar, Prakash and Puranik, Vijayalakshmi Ravi and Umarji, Arun and Yashonath, S (2009) Structure, energetics and diffusion properties of isomers of trimethyl benzene in beta zeolite: Uptake and Monte Carlo simulation study. In: Microporous and Mesoporous Materials, 125 (1-2, S). pp. 135-142.

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Abstract

A Monte Carlo study along with experimental uptake measurements of 1,2,3-trimethyl benzene, 1,2,4-trimethyl benzene and 1,3,5-trimethyl benzene (TMB) in beta zeolite is reported. The TraPPE potential has been employed for hydrocarbon interaction and harmonic potential of Demontis for modeling framework of the zeolite. Structure, energetics and dynamics of TMB in zeolite beta from Monte Carlo runs reveal interesting information about the diameter, properties of these isomers on confinement. Of the three isomers, 135TMB is supposed to have the largest diameter. It is seen TraPPE with Demontis potential predicts a restricted motion of 135TMB in the channels of zeolite beta.Experimentally, 135TMB has the highest transport diffusivity whereas MID results suggest this has the lowest self diffusivity. (C) 2009 Elsevier Inc. Ail rights reserved.

Item Type:	Journal Article
Publication:	Microporous and Mesoporous Materials
Publisher:	Elsevier Science
Additional Information:	Copyright of this article belongs to Elsevier Science.
Keywords:	Trimethyl benzene;Zeolite beta;Diffusion;Isomers;Monte Carlo;Uptake measurements
Department/Centre:	Division of Chemical Sciences > Solid State & Structural Chemistry Unit
Date Deposited:	21 Dec 2009 09:54
Last Modified:	01 Mar 2012 08:16
URI:	http://eprints.iisc.ac.in/id/eprint/22939

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