Photoemission studies of adsorbed oxygen and oxide layers

Molecular adsorption characteristics of lanthanum oxide surfaces: the interaction of water with oxide overlayers grown on Cu(111)

H2O interaction with clean and oxygen precovered Ni(110)

The interaction of oxygen with gadolinium: UPS and XPS studies

The adsorption of water on both clean and oxygen‐predosed Al(111) has been studied by vibrational spectroscopy using electron energy loss spectroscopy (EELS). At 130 K, adsorption on either surface is competitively associative and dissociative. The dominant dissociation product is a hydroxyl species. On the clean surface, adsorption is predominantly molecular, while in the presence of oxygen, adsorption is predominantly dissociative. In contrast to the low temperature behavior, adsorption of water on clean Al(111) at 300 K is completely dissociative, resulting in oxygen adsorption and surface oxidation. Adsorbed hydroxyl species can be produced at 300 K by prolonged water exposure. Upon heating a low‐temperature water layer adsorbed on either surface, molecular water desorption and further decomposition both occur. The production of adsorbed hydroxyl species from water reaches a maximum at 250 K on the clean surface and at 350 K on the oxygen‐predosed surface. The hydroxyl species decompose above these te...

R.A. Wille

Papers

Ultra-violet photoemission of erbium exposed to oxygen, water and hydrogen