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

doi:10.1002/admi.201801874

Multiple Reaction Paths for CO Oxidation on a 2D SnO_x 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

Department of Physics

Research output: Contribution to journal › Journal article › Research › peer-review

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Abstract

An interface stabilized SnO_x/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 SnO_x 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 SnO_x/Pt(110) system with enhanced tolerance to CO poisoning.

Original language	English
Article number	1801874
Journal	Advanced Materials Interfaces
Volume	6
Issue number	6
Number of pages	9
ISSN	2196-7350
DOIs	https://doi.org/10.1002/admi.201801874
Publication status	Published - 2019

Keywords

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

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@article{4fa6116fef324eeb9a64e78b2050d16c,

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

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",

doi = "10.1002/admi.201801874",

language = "English",

volume = "6",

journal = "Advanced Materials Interfaces",

issn = "2196-7350",

publisher = "John Wiley & Sons Ltd",

number = "6",

}

Multiple Reaction Paths for CO Oxidation on a 2D SnO_x 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 journal › Journal article › Research › peer-review

TY - JOUR

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

Y1 - 2019

N2 - 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.

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

U2 - 10.1002/admi.201801874

DO - 10.1002/admi.201801874

M3 - Journal article

VL - 6

JO - Advanced Materials Interfaces

JF - Advanced Materials Interfaces

SN - 2196-7350

IS - 6

M1 - 1801874

ER -