The adsorption of atomic hydrogen on Cu(111) investigated by reflection-absorption infrared spectroscopy, electron energy loss spectroscopy and low energy electron diffraction
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Cited by (79)
Surface structure-based CO<inf>2</inf>reduction reaction modelling over supported copper catalysts
2020, Journal of CO2 UtilizationInteractions of incident H atoms with metal surfaces
2018, Surface Science ReportsCitation Excerpt :The interactions of incident H atoms with Cu(111) has been extensively studied using LEED, HREELS, IRAS, helium atom scattering (HAS), and TPD [6,41,186–193]. Although there is general agreement in the literature that upon increasing exposure of H atoms, the (1 × 1) LEED pattern of clean Cu(111) transitions to a (2 × 2) pattern below θH = 0.5 ML and to a (3 × 3) pattern above θH = 0.5 ML [186,188,193], there is much debate regarding the assignment of the H atom adsorption sites responsible for peaks in vibrational spectra and the H2 desorption peaks in TPD data. Table 3 summarizes data for vibrational energies of adsorbed hydrogen from exposures of H atoms incident on Cu(111).
Hydrogen detection near surfaces and shallow interfaces with resonant nuclear reaction analysis
2014, Surface Science ReportsCitation Excerpt :Two H2 desorption signals with peak temperatures of 185 K and 330 K were seen. The characteristically sharp low-temperature (so-called α1) desorption feature at 185 K has been observed in numerous previous TDS studies of low-index Pd surfaces [61,279,401,494–498] and was attributed to `subsurface` hydrogen [494], on the basis of its peculiar desorption kinetics (close to zero or fractional orders at not too large populations) and due to the facts that its integrated intensity may exceed the desorption signal of surface-adsorbed H (the rapidly saturating feature at 330 K) after large exposures but does nonetheless not saturate, and that it does not induce notable work function changes. While all this certainly has been compelling indirect evidence for an absorbed H species, its nature and location below the surface could not be assessed any further.
First-principles study of H adsorption on and absorption in Cu(1 1 1) surface
2006, Chemical Physics
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Present address: Cavendish Laboratory, Department of Physics, University of Cambridge, Madingley Road, Cambridge CB3 0HE, UK.
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Present address: Analytical Support and Research Division, BP Research Centre, Chertsey Road, Sunbury on Thames, Middlesex, TW16 7LN, UK.
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Permanent address: Department of Chemistry, Queen Mary College, Mile End Road, London E1 4NS, UK.