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Abstract XP Spectroscopy is used to compare the states of the supported platinum particles in the samples of the Pt/Sibunit catalyst and the Pt/HOPG model system after treating in NO… Click to show full abstract
Abstract XP Spectroscopy is used to compare the states of the supported platinum particles in the samples of the Pt/Sibunit catalyst and the Pt/HOPG model system after treating in NO 2 at room temperature and pressure of 3 × 10 −6 mbar. It is shown that in both cases the platinum particles are not oxidized completely. The comparison of the spectra obtained for the Pt/Sibunit sample in the Pt 4f and Pt 3d 5/2 regions with the use of Al K α and Ag L α radiations serves as a basis for an assumption that the particles of platinum after being treated in NO 2 have the core (metallic Pt) − shell (platinum oxides) structure.
Journal Title: Applied Surface Science
Year Published: 2018
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