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

Jian Zheng, Michael Busch, Luca Artiglia, Tomás Skála, Jan Rossmeisl, Stefano Agnoli*

*Corresponding author for this work

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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.
Original languageEnglish
Article number1801874
JournalAdvanced Materials Interfaces
Volume6
Issue number6
Number of pages9
ISSN2196-7350
DOIs
Publication statusPublished - 2019

Keywords

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

Cite this

Zheng, Jian ; Busch, Michael ; Artiglia, Luca ; Skála, Tomás ; Rossmeisl, Jan ; Agnoli, Stefano. / Multiple Reaction Paths for CO Oxidation on a 2D SnOx Nano-Oxide on the Pt(110) Surface: Intrinsic Reactivity and Spillover. In: Advanced Materials Interfaces. 2019 ; Vol. 6, No. 6.
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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.",
keywords = "CO reactivity, Density fucntional theory, Nano-oxide, Photoemission spectroscopy, Scanning tunneling microscopy",
author = "Jian Zheng and Michael Busch and Luca Artiglia and Tom{\'a}s Sk{\'a}la and Jan Rossmeisl and Stefano Agnoli",
year = "2019",
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language = "English",
volume = "6",
journal = "Advanced Materials Interfaces",
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Multiple Reaction Paths for CO Oxidation on a 2D SnOx Nano-Oxide on the Pt(110) Surface: Intrinsic Reactivity and Spillover. / Zheng, Jian; Busch, Michael; Artiglia, Luca; Skála, Tomás; Rossmeisl, Jan; Agnoli, Stefano.

In: Advanced Materials Interfaces, Vol. 6, No. 6, 1801874, 2019.

Research output: Contribution to journalJournal articleResearchpeer-review

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T1 - Multiple Reaction Paths for CO Oxidation on a 2D SnOx Nano-Oxide on the Pt(110) Surface: Intrinsic Reactivity and Spillover

AU - Zheng, Jian

AU - Busch, Michael

AU - Artiglia, Luca

AU - Skála, Tomás

AU - Rossmeisl, Jan

AU - Agnoli, Stefano

PY - 2019

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AB - 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.

KW - CO reactivity

KW - Density fucntional theory

KW - Nano-oxide

KW - Photoemission spectroscopy

KW - Scanning tunneling microscopy

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