Neutron spectroscopic evidence for subsurface hydrogen in palladium
- 15 December 1987
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 36 (17) , 9315-9317
- https://doi.org/10.1103/physrevb.36.9315
Abstract
The interaction of hydrogen with palladium black, a high-surface-area metal powder, has been investigated by incoherent inelastic neutron scattering. The vibrational spectrum associated with chemisorbed surface hydrogen occupying threefold sites has been identified. A vibrational mode at 58 meV, which is found to be inconsistent with either surface or bulk palladium-hydrogen species, is assigned to chemisorbed hydrogen occupying subsurface sites.Keywords
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