Precursor adsorption of CO on Ni(111) near 5 K and the activation energy for chemisorption

Mansour Shayegan, E. D. Williams, R. E. Glover, Robert L. Park

Research output: Contribution to journalLetterpeer-review

25 Scopus citations

Abstract

Measurements of low energy electron transmission spectrum and work function φ of a Ni(111) surface held at T = 5.5 K during exposure to CO provide direct evidence for a precursor adsorption preceding chemisorption. Subsequent warming of the CO covered surface leads to the chemisorption state. An analysis of the kinetics of the increase in φ that accompanies this transition gives an activation energy of ~ 4 meV for the reaction.

Original languageEnglish (US)
JournalSurface Science
Volume154
Issue number2-3
DOIs
StatePublished - May 2 1985
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Materials Chemistry

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