Multiple Reaction Paths for CO Oxidation on a 2D SnOx Nano-Oxide on the Pt(110) Surface: Intrinsic Reactivity and Spillover

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An interface stabilized SnOx/Pt(110) nano-oxide characterized by a c(2 × 4) surface reconstruction is prepared and characterized by low-energy electron diffraction (LEED), synchrotron radiation photoemission spectroscopy (SRPES), and scanning tunneling microscopy (STM). Based on the experimental data, atomic models for the nano-oxide are proposed and then validated by comparing the experimental results with the outcome of first-principle calculations. The reactivity of the nano-oxide toward CO is investigated, obtaining that the c(2 × 4) reconstruction efficiently oxidizes CO to CO2. The SnOx nano-oxide on the Pt(110) surface can act as a reservoir for oxygen that can diffuse on the adjacent Pt areas where it oxidizes CO. This spillover effect endows the SnOx/Pt(110) system with enhanced tolerance to CO poisoning.
Original languageEnglish
Article number1801874
JournalAdvanced Materials Interfaces
Issue number6
Number of pages9
Publication statusPublished - 2019
CitationsWeb of Science® Times Cited: No match on DOI

    Research areas

  • CO reactivity, Density fucntional theory, Nano-oxide, Photoemission spectroscopy, Scanning tunneling microscopy

ID: 166898606