Chemisorption of atomic hydrogen on Cu(111)
作者： Felix Greuter , E. Ward Plummer
DOI: 10.1016/0038-1098(83)90178-3
关键词: Transition metal 、 Analytical chemistry 、 Hydrogen bond 、 Adsorption 、 Thermal desorption 、 Fermi energy 、 Chemistry 、 Dissociation (chemistry) 、 Chemisorption 、 Hydrogen
摘要: Abstract Angle resolved photoemission and thermal desorption studies of atomic hydrogen adsorbed onto the (111) surface Cu show that bonding H to is very similar on transition metals. Saturated adsorption at temperatures below 200K produces a two peak spectrum (peaks ≈ 230K 300K) spectra reveal Hls derived state 6.2 eV Fermi energy quite dramatic charge redistributions within d-bands. Molecular H2 does not dissociate Cu(111) under conditions these experiments whereas chemisorbs even above room temperature. This confirms existence large dissociation barrier Cu.
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