Tuning clathrate hydrates for hydrogen storage

Huen Lee (), Jong-won Lee, Do Youn Kim, Jeasung Park, Yu-Taek Seo, Huang Zeng, Igor L. Moudrakovski, Christopher I. Ratcliffe and John A. Ripmeester ()
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Huen Lee: Korea Advanced Institute of Science and Technology (KAIST)
Jong-won Lee: Korea Advanced Institute of Science and Technology (KAIST)
Do Youn Kim: Korea Advanced Institute of Science and Technology (KAIST)
Jeasung Park: Korea Advanced Institute of Science and Technology (KAIST)
Yu-Taek Seo: Steacie Institute for Molecular Sciences, National Research Council Canada
Huang Zeng: Steacie Institute for Molecular Sciences, National Research Council Canada
Igor L. Moudrakovski: Steacie Institute for Molecular Sciences, National Research Council Canada
Christopher I. Ratcliffe: Steacie Institute for Molecular Sciences, National Research Council Canada
John A. Ripmeester: Steacie Institute for Molecular Sciences, National Research Council Canada

Nature, 2005, vol. 434, issue 7034, 743-746

Abstract: Fuelling the hydrogen economy Clathrate hydrates, in which an ice lattice plays host to molecules of hydrogen gas, are leading candidates for hydrogen storage devices in fuel cells. Some structure II hydrates, with two different sizes of molecular cage, have already achieved good hydrogen storage performance. However, the harsh conditions required for their synthesis and performance make actual applications of the material rather unrealistic. The practical feasibility of these materials for hydrogen storage is now brought closer with the development of structure II gas hydrates stabilized by the inclusion of a water-soluble guest, tetrahydrofuran (THF). The presence of THF enables both the large and small cages of the clathrate to contain hydrogen, achieving an uptake of 4 wt % hydrogen at reasonable pressure conditions, moving these systems still closer to the accepted target for some fuel cell applications.

Date: 2005
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DOI: 10.1038/nature03457

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