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Using high resolution X-ray photoelectron spectroscopy and scanning tunneling microscopy we study the intercalation of hydrogen under graphene/Ir(111). The hydrogen intercalated graphene is characterized by a component in C 1s that is shifted−0.10 to−0.18eV with respect to pristine graphene and a component in Ir 4f at 60.54eV. The position of this Ir 4f component is identical to that of the Ir(111)...
Using high resolution and ambient pressure X-ray photoelectron spectroscopy we show that the catalytically active FeO $$_{2}$$ 2 trilayer films grown on Pt(111) are very active for water dissociation, in contrast to inert FeO(111) bilayer films. The FeO $$_{2}$$ 2 trilayer is so active for water dissociation that it becomes hydroxylated upon formation, regardless of the applied...
The mechanisms for oxygen etching of graphene on Ir(111) are uncovered through a systematic variation of the graphene morphology – ranging from an impermeable graphene layer to graphene nanoflakes – and the application of complementary experimental methods, including scanning tunneling microscopy, X-ray photoelectron spectroscopy, and temperature programmed desorption. Associated with a strong variation...
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