Effect of Hydrogen Adsorption on the X-Ray Absorption Spectra of Small Pt Clusters
Journal Article
·
· Physical Review Letters
Hydrogen adsorption on Pt{sub 6}H{sub n} clusters leads to striking changes in the Pt L{sub 2,3} x-ray absorption spectra. These effects are interpreted using a self-consistent real space Green's function approach. Calculations show that they are due largely to changes in the atomic background contribution to x-ray absorption (i.e., atomic x-ray absorption fine structure) and to reduced Pt-Pt scattering at the edge, while Pt-H multiple scattering is relatively weak. The origin of both effects is traced to the change in the local Pt potential due to Pt-H bonding.
- Sponsoring Organization:
- (US)
- OSTI ID:
- 40205835
- Journal Information:
- Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 8 Vol. 86; ISSN 0031-9007
- Publisher:
- The American Physical Society
- Country of Publication:
- United States
- Language:
- English
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