Multiple Reaction Paths for CO Oxidation on a 2D SnOx Nano‐Oxide on the Pt(110) Surface: Intrinsic Reactivity and Spillover
Source abstract
Abstract
Abstract 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.
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Research context
OpenAlex topics: Catalytic Processes in Materials Science · Electrocatalysts for Energy Conversion · Gas Sensing Nanomaterials and Sensors
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Chemical Sciences and INSTM UNIT University of Padova Via Marzolo, 1 I‐35131 Padova Italy
Laboratory for Catalysis and Sustainable Chemistry and Laboratory of Environmental Chemistry Paul Scherrer Institute Forschungsstrasse 111 5232 Villigen PSI Switzerland
Center for Atomic‐Scale Materials Design Department of Physics Technical University of Denmark DK‐2800 Kongens Lyngby Denmark
Faculty of Mathematics and Physics Department of Surface and Plasma Science Charles University V Holešovičkách 2 CZ‐18000 Prague Czech Republic
Nano‐Science Center Department of Chemistry University of Copenhagen Universitetsparken 5 DK‐2100 Copenhagen Denmark
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