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; Tomáš 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, Tomáš Skála, Jan Rossmeisl, Stefano Agnoli

Kemisk Institut

1 Citationer (Scopus)

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 CO ₂ . 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.

Originalsprog	Engelsk
Artikelnummer	1801874
Tidsskrift	Advanced Materials Interfaces
Vol/bind	6
Udgave nummer	6
Sider (fra-til)	1-9
Antal sider	9
ISSN	2196-7350
DOI	https://doi.org/10.1002/admi.201801874
Status	Udgivet - 22 mar. 2019

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10.1002/admi.201801874

Citationsformater

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

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 CO 2 . 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. ",

author = "Jian Zheng and Michael Busch and Luca Artiglia and Tom{\'a}{\v s} Sk{\'a}la and Jan Rossmeisl and Stefano Agnoli",

year = "2019",

month = mar,

day = "22",

doi = "10.1002/admi.201801874",

language = "English",

volume = "6",

pages = "1--9",

journal = "Advanced Materials Interfaces",

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TY - JOUR

T1 - Multiple Reaction Paths for CO Oxidation on a 2D SnO x Nano‐Oxide on the Pt(110) Surface

T2 - Intrinsic Reactivity and Spillover

AU - Zheng, Jian

AU - Busch, Michael

AU - Artiglia, Luca

AU - Skála, Tomáš

AU - Rossmeisl, Jan

AU - Agnoli, Stefano

PY - 2019/3/22

Y1 - 2019/3/22

N2 - 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 CO 2 . 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.

AB - 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 CO 2 . 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.

U2 - 10.1002/admi.201801874

DO - 10.1002/admi.201801874

M3 - Journal article

SN - 2196-7350

VL - 6

SP - 1

EP - 9

JO - Advanced Materials Interfaces

JF - Advanced Materials Interfaces

IS - 6

M1 - 1801874

ER -

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

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