Evidence for ‘‘subsurface’’ hydrogen on Pd(110): An intermediate between chemisorbed and dissolved species
- 15 June 1983
- journal article
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 78 (12) , 7486-7490
- https://doi.org/10.1063/1.444739
Abstract
We report experimental evidence for the formation of a ‘‘subsurface’’ hydrogen species at 130 K on a Pd(110) single crystal surface. This is well separated by distinct activation energy barriers from species which are chemisorbed or which are dissolved in the Pd bulk, thereby confirming a model of H absorption in Pd in which a subsurface state acts as a reaction intermediate.Keywords
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