Electronic interactions in bimetallic systems: An x-ray photoelectron spectroscopic study

Journal Article · Thu Sep 06 00:00:00 EDT 1990 · Journal of Physical Chemistry; (United States)

DOI:https://doi.org/10.1021/j100381a004· OSTI ID:5497612

Rodriguez, J A; Campbell, R A; Goodman, D W ^[1]

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1. Texas A and M Univ., College Station (USA)

The electronic interactions in Cu/Rh(100), Cu/Ru(0001), Ni/Ru(0001), Ni/W(110), and Pd/W(110) have been examined by means of x-ray photoelectron spectroscopy (XPS). The shifts in core-level binding energies indicate that the adatoms in a monolayer of Ni, Cu, or Pd are electronically perturbed with respect to the surface atoms of Ni(100), Cu(100), or Pd(100). The magnitude of the electronic perturbations is larger for Pd/W(110) and Cu/Rh(100). The present results show a correlation between the shifts in the XPS surface core-level binding energies and the variations in the desorption temperature of CO from metal adlayers.

• OSTI ID: 5497612
• Journal Information: Journal of Physical Chemistry; (United States), Journal Name: Journal of Physical Chemistry; (United States) Vol. 94:18; ISSN 0022-3654; ISSN JPCHA
• Country of Publication: United States
• Language: English

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