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The metal-substrate interaction (MSI) represents an important effect determining the properties of supported heterogeneous catalysts. We investigated the MSI effects by X-ray photoelectron spectroscopy, ion scattering spectroscopy and thermal desorption spectroscopy in the case of Pd films vapor deposited on non-stoichiometric aluminum oxide substrates. We compared the obtained results with these...
CO adsorption on the bulk PdAl bimetallic systems has been studied using XPS, ISS, TDS, and SIMS under UHV conditions.Pd exhibits strong interaction with Al atoms resulting in the formation of noble metal-like electronic structure of PdAl alloy. The shifts of both Pd core levels and of Pd valence d-band centroid towards higher binding energies compared to bulk Pd were observed. The surface structure...
CO adsorption properties of the bimetallic Pd/Al systems have been studied using thermally programmed desorption (TPD) and X-ray photoelectron spectroscopy (XPS) under UHV conditions. The samples were prepared by vacuum evaporation of Pd onto pure Al substrates. Measured TPD and XPS spectra of CO from bimetallic surfaces were compared to the ones of clean bulk metals. The deposited Pd ad-layers exhibited...
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