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A density functional study on the aggregation of alumina clusters

A density functional study on the aggregation of alumina clusters A calculation has been performed to explore the mechanism of aggregation reaction between two small molecular clusters [(Al2O3) n1 and (Al2O3) n2] by the density functional theory method. Five pathways of aggregation reactions between two different (Al2O3)1 clusters isomers were identified. The detailed process of (Al2O3)1 interaction with (Al2O3)2 were also obtained. All the products of the aggregation reactions between two cage structures are cage-dimer structures. We calculated the thermodynamic properties of all the aggregate clusters. The Gibbs free energy changes of aggregation reactions in 0–1000 K were negative and increased with the temperature increase. The energy changes of enthalpy and entropy were also obtained. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Research on Chemical Intermediates Springer Journals

A density functional study on the aggregation of alumina clusters

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References (23)

Publisher
Springer Journals
Copyright
Copyright © 2016 by Springer Science+Business Media Dordrecht
Subject
Chemistry; Catalysis; Physical Chemistry; Inorganic Chemistry
ISSN
0922-6168
eISSN
1568-5675
DOI
10.1007/s11164-016-2708-3
Publisher site
See Article on Publisher Site

Abstract

A calculation has been performed to explore the mechanism of aggregation reaction between two small molecular clusters [(Al2O3) n1 and (Al2O3) n2] by the density functional theory method. Five pathways of aggregation reactions between two different (Al2O3)1 clusters isomers were identified. The detailed process of (Al2O3)1 interaction with (Al2O3)2 were also obtained. All the products of the aggregation reactions between two cage structures are cage-dimer structures. We calculated the thermodynamic properties of all the aggregate clusters. The Gibbs free energy changes of aggregation reactions in 0–1000 K were negative and increased with the temperature increase. The energy changes of enthalpy and entropy were also obtained.

Journal

Research on Chemical IntermediatesSpringer Journals

Published: Sep 3, 2016

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