ausblenden:
Schlagwörter:
Carbon monoxide oxidation; molecular beams; Ag(110); subsurface oxygen; surface reconstruction.
Zusammenfassung:
Transient CO2 formation has been studied under "quasi-steady-state" measuring conditions by means of surface titrations. By this method the reactivity of the surface could be sampled as a function of time, thereby following the formation of the surface reconstruction induced by oxygen. The reactivity of the surface towards CO oxidation was reduced in the course of the developing surface reconstruction. A possible influence of subsurface oxygen on the CO2 formation rates can be excluded.
