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Direct Observation of H2 Binding to a Metal Oxide Surface.
DOI:
10.1103/PhysRevLett.101.165302
PMID:
18999681
Authors:
J. Z.
Larese
(University of Tennessee,ORNL)
,
T.
Arnold
(Diamond Light Source)
,
L.
Frazier
(University of Tennessee)
,
R. J.
Hinde
(University of Tennessee)
,
A. J.
Ramirez-cuesta
(ISIS)
Co-authored by industrial partner:
No
Type:
Journal Paper
Journal:
Physical Review Letters
, VOL 101 (16)
, PAGES 165302
State:
Published (Approved)
Published:
October 2008
Abstract: Inelastic neutron scattering is used to probe the dynamical response of H(2) films adsorbed on MgO(100) as a function of film thickness. Concomitant diffraction measurements and a reduced-dimensionality quantum dynamical model provide insight into the molecule-surface interaction potential. At monolayer thickness, the rotational motion is strongly influenced by the surface, so that the molecules behave like quasiplanar rotors. These findings have a direct impact on understanding how molecular hydrogen binds to the surface of materials used in catalytic and storage applications.
Subject Areas:
Chemistry,
Physics
Instruments:
NONE-No attached Diamond beamline