Applied Physics Letters · 1978 · 53 citations · 7 references
Natural SciencesMaterials EngineeringMaterials SciencePhysical ChemistrySurface ChemistrySurface ScienceCrystal ChemistrySurface Chemistry Of SolidsSurface CrystallographySurface KineticsSurface PhysicsSurface ReactionsChemical Reaction MechanismsReaction-induced Surface SegregationSurface Hydrogenation ReactionsSurface SegregationSurface-based Segregation
LEED and AES studies of LaNi5 single crystals cleaved in UHV and exposed to oxygen and hydrogen show that surface segregation of La is induced at room temperature by oxygen, but not by hydrogen. This segregation is driven by the chemical exchange reaction (La-Ni)+O→ (La-O)+Ni. A surface-layer model is derived supporting the important implications of the segregation for the excellent kinetics in hydrogenation and the resistance to contaminants.
7
Formation and properties of iron titanium hydride
J.J. Reilly, R.H. Wiswall · Inorganic Chemistry · 1974 · 889 citations
O. Böser · Journal of the Less Common Metals · 1976 · 117 citations
Natural Sciences, Materials Engineering, Materials Science +6