TY - GEN
T1 - Neutron- And Raman-scattering measurements of hydrogen dynamics in clathrates hydrates
AU - Ulivi, Lorenzo
AU - Celli, Milva
AU - Giannasi, Alessandra
AU - Zoppi, Marco
AU - Ramirez-Cuesta, A. J.
PY - 2009
Y1 - 2009
N2 - Hydrogen clathrate hydrates have raised strong interest recently as possible materials for hydrogen storage. In these compounds, H2 molecules are hosted in "cages" formed in the hydrogen-bonded H2O lattice. They represent a paradigmatic example to study the quantum dynamics of confined hydrogen molecules. In this talk the results of recent inelastic neutron scattering and Raman spectroscopy measurements will be presented and discussed. The measurements have been performed on heavy water clathrates containing molecular hydrogen or HD, with completely deuterated tetra-hydrofuran (THF). In the high-resolution neutron spectrum the H2 (or HD) molecule excitations give rise to very strong bands, which are assigned unambiguously to rotational transitions of the H2 molecule, to center-of-mass translational transitions (rattling) and to combinations of these. The Raman spectra reveal details of the interaction of the H2 molecule with the cage, and of the different number of molecule in the cages.
AB - Hydrogen clathrate hydrates have raised strong interest recently as possible materials for hydrogen storage. In these compounds, H2 molecules are hosted in "cages" formed in the hydrogen-bonded H2O lattice. They represent a paradigmatic example to study the quantum dynamics of confined hydrogen molecules. In this talk the results of recent inelastic neutron scattering and Raman spectroscopy measurements will be presented and discussed. The measurements have been performed on heavy water clathrates containing molecular hydrogen or HD, with completely deuterated tetra-hydrofuran (THF). In the high-resolution neutron spectrum the H2 (or HD) molecule excitations give rise to very strong bands, which are assigned unambiguously to rotational transitions of the H2 molecule, to center-of-mass translational transitions (rattling) and to combinations of these. The Raman spectra reveal details of the interaction of the H2 molecule with the cage, and of the different number of molecule in the cages.
UR - http://www.scopus.com/inward/record.url?scp=78649507463&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:78649507463
SN - 9780841224414
T3 - ACS National Meeting Book of Abstracts
BT - American Chemical Society - 237th National Meeting and Exposition, ACS 2009, Abstracts of Scientific Papers
T2 - 237th National Meeting and Exposition of the American Chemical Society, ACS 2009
Y2 - 22 March 2009 through 26 March 2009
ER -
