Adsorption of small molecules on the Pt(100) single crystal surface studied by Disappearance Potential Spectroscopy
Source abstract
Abstract
Abstract Disappearance potential spectroscopy (DAPS) is used to elucidate the influence of H 2 , O 2 , NO, and CO adsorption and NO+H ads interaction on the electronic structure of the Pt(100)-(1×1) single crystal surface. DAP spectra obtained after adsorption of different molecules reveal the similar features related to excitation of platinum core electrons. Besides, a set of the pronounced individual satellites originating from the adsorbed species are also exhibited in DAP spectra. The locations of these satellites with respect to the substrate Fermi level are found to be comparable with the ionization potentials of the given adsorbed particle. It evidences the conjugate pathway of the primary electron energy consumption, which includes an ordinary threshold excitation of the substrate core electron accompanied by ionization of the adsorbed species.
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OpenAlex topics: Advanced Chemical Physics Studies · Catalysis and Oxidation Reactions · Molecular Junctions and Nanostructures
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