Adsorption of Oxygen on Pt (111) and Its Reactivity to Hydrogen and Carbon Monoxide.

Abstract

Oxygen was found to adsorb on Pt(111) with an initial sticking coefficient of 0.048 + or - .006 and linear adsorption kinetics. The surface saturated at an oxygen to platinum ratio of 1:4. The reactivity of adsorbed oxygen to hydrogen and CO was determined from steady state oxygen coverages for H2-O2 and CO-O2 mixtures. From the reactivity data which show reaction probabilities of 1.0 for CO and 1/2 for H2 over a wide range of oxygen coverages, it is concluded that both H2 and CO are reactive in mobile states which are probably the precursors to adsorption. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1978
Accession Number
ADA072710

Entities

People

  • David R. Monroe
  • Robert P. Merrill

Organizations

  • University of California, Berkeley

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Adsorption
  • Auger Electron Spectroscopy
  • Auger Electrons
  • Carbon Monoxide
  • Desorption
  • Dielectric Gases
  • Diffraction
  • Electron Spectroscopy
  • Energy
  • Equations
  • Monoxides
  • Partial Pressure
  • Spectra
  • Spectroscopy
  • Steady State
  • Surface Temperature
  • Vacuum Chambers

Readers

  • Combustion science or combustion engineering.
  • Electrochemical Engineering/ Fuel Cell Technologies