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- W3046398212 abstract "Abstract The growth of ultrathin layers of VO x (< 12 monolayers) on Pt(111) and the activity of these layers in catalytic methanol oxidation at 10 −4 mbar have been studied with low-energy electron diffraction, Auger electron spectroscopy, rate measurements, and with photoemission electron microscopy. Reactive deposition of V in O 2 at 670 K obeys a Stranski–Krastanov growth mode with a (√3 × √3)R30° structure representing the limiting case for epitaxial growth of 3D-VO x . The activity of VO x /Pt(111) in catalytic methanol oxidation is very low and no redistribution dynamics is observed lifting the initial spatial homogeneity of the VO x layer. Under reaction conditions, part of the surface vanadium diffuses into the Pt subsurface region. Exposure to O 2 causes part of the V to diffuse back to the surface, but only up to one monolayer of VO x can be stabilized in this way at 10 −4 mbar." @default.
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- W3046398212 date "2020-07-31" @default.
- W3046398212 modified "2023-09-26" @default.
- W3046398212 title "Reactivity and Stability of Ultrathin VOx Films on Pt(111) in Catalytic Methanol Oxidation" @default.
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- W3046398212 doi "https://doi.org/10.1007/s11244-020-01321-z" @default.
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