Dynamics of hydrogen molecules in the channels of binary THF-H(2) clathrate hydrate and its physicochemical significance on hydrogen storage

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We have studied the dynamics of the H-2 loaded THF (tetrahydrofuran) clathrate hydrate by using an inelastic neutron scattering technique At 2 K a well defined single peak indicative of the ortho (J = 1) to para (J = 0) hydrogen transition is observed at 13 6 meV The neutron spectrum undergoes two distinct changes as the temperature increases First additional peaks appear from splitting of the rotational transition above 10 K Upon further heating a quasi elastic neutron scattering (QENS) signal due to hydrogen molecular diffusion through the THF hydrate crystalline lattice grows significantly above 65 K These results indicate that H-2 molecules trapped inside the THF hydrate crystalline structure undergo two distinct transformations in their dynamical behavior (C) 2010 Professor T Nejat Veziroglu Published by Elsevier Ltd All rights reserved
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Issue Date
2010-12
Language
English
Article Type
Article; Proceedings Paper
Keywords

METAL-ORGANIC FRAMEWORKS; CLUSTERS; CAGES; H-2

Citation

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY , v.35, no.23, pp.13068 - 13072

ISSN
0360-3199
URI
http://hdl.handle.net/10203/95823
Appears in Collection
CBE-Journal Papers(저널논문)
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