Volume 46, Issue 32 pp. 6102-6105
Communication

Hydrogen-Gas Migration through Clathrate Hydrate Cages

Saman Alavi Dr.

Saman Alavi Dr.

Steacie Institute for Molecular Sciences, National Research Council of Canada, Ottawa, ON K1A 0R6, Canada, Fax: (+1) 613-947-2838

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John A. Ripmeester Prof.

John A. Ripmeester Prof.

Steacie Institute for Molecular Sciences, National Research Council of Canada, Ottawa, ON K1A 0R6, Canada, Fax: (+1) 613-947-2838

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First published: 03 August 2007
Citations: 111

The authors acknowledge the support of the National Research Council of Canada.

Graphical Abstract

Escape! Electronic-structure calculations have been used to estimate the energy barriers to the migration of H2 guest molecules from the cages of the structure-II clathrate hydrate (see picture; H green, O red). The escape rates from the cages were calculated using an Arrhenius expression with a tunneling correction.

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