Investigation of oxygen adsorption on Pd 100/ with defects

Pd 100.with mesoscopic defects was prepared, and oxygen adsorption on this surface was studied by photoemission electron microscopy PEEM.. The defect surfaces behaved differently towards oxygen adsorption from the Pd 100.surface. Besides the oxygen species adsorbed on the surface, the formation of surface oxide and subsurface oxygen on different facets, as well as surface restructure, was observed by PEEM during oxygen adsorption. q2000 Elsevier Science B.V. All rights reserved