CO INTERACTIONS WITH COPPER-COVERED Ru(0001).

S. D. Bader, L. Richter, P. L. Cao, D. E. Ellis, Arthur J Freeman

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Abstract

Photoemission-thermal desorption studies for saturation coverage CO on submonolayer Cu-covered Ru(0001), and self-consistent total-energy calculations for CO bound to small-cluster analogs of Cu(111), Ru(0001), and Cu/Ru(0001) chemisorption geometries are reported. New Cu-perturbed Ru binding sites are observed experimentally with (approximately 25%) reduced activation energy for desorption and increased molecular photoelectron binding energies (approximately 0. 3 ev) relative to CO/Ru(0001). The mixed-metal cluster calculation provides a description of a possible precursor intermediate state for CO desorption, in qualitative accord with experiment.

Original languageEnglish
Pages (from-to)1185-1187
Number of pages3
JournalJournal of Vacuum Science and Technology A: Vacuum, Surfaces and Films
Volume1
Issue number2 pt 2
DOIs
Publication statusPublished - Apr 1982

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ASJC Scopus subject areas

  • Surfaces, Coatings and Films
  • Physics and Astronomy (miscellaneous)
  • Surfaces and Interfaces

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