Coupled desorption and site conversion of co-adsorbates: A lattice gas analysis of thermal desorption and spectroscopic data of (NO+O)/Ru(001)

H. J. Kreuzer; S. H. Payne; P. Jakob; D. Menzel

doi:10.1016/S0039-6028(99)00010-2

Coupled desorption and site conversion of co-adsorbates: A lattice gas analysis of thermal desorption and spectroscopic data of (NO+O)/Ru(001)

H. J. Kreuzer
, S. H. Payne
, P. Jakob
, D. Menzel

Chair of Experimental Physics

Dalhousie University
Technical University of Munich

Research output: Contribution to journal › Article › peer-review

15 Scopus citations

Abstract

The (NO+O)/Ru(001) system constitutes a good example of complex desorption-site conversion with the advantage that the geometrical structures, the coverages, as well as detailed spectroscopic information on all participating species are available. We present a combined set of desorption data and vibrational spectra with in situ determination of partial coverages in desorption which show site-conversion for both increasing and decreasing temperatures. This system is understood in detail by modeling the (NO+O) coadsorbate layer on Ru(001) as a lattice gas that accounts for the adsorbate structure and site-conversion, and explains the TPD spectra. The unusual features of the TPD spectra result in part from the dramatic coverage dependence of the sticking coefficient induced by site-exclusion.

Original language	English
Pages (from-to)	36-54
Number of pages	19
Journal	Surface Science
Volume	424
Issue number	1
DOIs	https://doi.org/10.1016/S0039-6028(99)00010-2
State	Published - 19 Mar 1999

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10.1016/S0039-6028(99)00010-2

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@article{b81416b0a7e64fd4aee87f3252d246fd,

title = "Coupled desorption and site conversion of co-adsorbates: A lattice gas analysis of thermal desorption and spectroscopic data of (NO+O)/Ru(001)",

abstract = "The (NO+O)/Ru(001) system constitutes a good example of complex desorption-site conversion with the advantage that the geometrical structures, the coverages, as well as detailed spectroscopic information on all participating species are available. We present a combined set of desorption data and vibrational spectra with in situ determination of partial coverages in desorption which show site-conversion for both increasing and decreasing temperatures. This system is understood in detail by modeling the (NO+O) coadsorbate layer on Ru(001) as a lattice gas that accounts for the adsorbate structure and site-conversion, and explains the TPD spectra. The unusual features of the TPD spectra result in part from the dramatic coverage dependence of the sticking coefficient induced by site-exclusion.",

author = "Kreuzer, \{H. J.\} and Payne, \{S. H.\} and P. Jakob and D. Menzel",

note = "Funding Information: This work was supported by the Deutsche Forschungsgemeinschaft through SFB 338 and, at Dalhousie University, by the Office of Naval Research. One of us (H.J.K.) thanks the Alexander von Humboldt foundation for a Humboldt Research Award, during which much of this work has been performed.",

year = "1999",

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day = "19",

doi = "10.1016/S0039-6028(99)00010-2",

language = "English",

volume = "424",

pages = "36--54",

journal = "Surface Science",

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TY - JOUR

T1 - Coupled desorption and site conversion of co-adsorbates

T2 - A lattice gas analysis of thermal desorption and spectroscopic data of (NO+O)/Ru(001)

AU - Kreuzer, H. J.

AU - Payne, S. H.

AU - Jakob, P.

AU - Menzel, D.

N1 - Funding Information: This work was supported by the Deutsche Forschungsgemeinschaft through SFB 338 and, at Dalhousie University, by the Office of Naval Research. One of us (H.J.K.) thanks the Alexander von Humboldt foundation for a Humboldt Research Award, during which much of this work has been performed.

PY - 1999/3/19

Y1 - 1999/3/19

N2 - The (NO+O)/Ru(001) system constitutes a good example of complex desorption-site conversion with the advantage that the geometrical structures, the coverages, as well as detailed spectroscopic information on all participating species are available. We present a combined set of desorption data and vibrational spectra with in situ determination of partial coverages in desorption which show site-conversion for both increasing and decreasing temperatures. This system is understood in detail by modeling the (NO+O) coadsorbate layer on Ru(001) as a lattice gas that accounts for the adsorbate structure and site-conversion, and explains the TPD spectra. The unusual features of the TPD spectra result in part from the dramatic coverage dependence of the sticking coefficient induced by site-exclusion.

AB - The (NO+O)/Ru(001) system constitutes a good example of complex desorption-site conversion with the advantage that the geometrical structures, the coverages, as well as detailed spectroscopic information on all participating species are available. We present a combined set of desorption data and vibrational spectra with in situ determination of partial coverages in desorption which show site-conversion for both increasing and decreasing temperatures. This system is understood in detail by modeling the (NO+O) coadsorbate layer on Ru(001) as a lattice gas that accounts for the adsorbate structure and site-conversion, and explains the TPD spectra. The unusual features of the TPD spectra result in part from the dramatic coverage dependence of the sticking coefficient induced by site-exclusion.

UR - https://www.scopus.com/pages/publications/0345103259

U2 - 10.1016/S0039-6028(99)00010-2

DO - 10.1016/S0039-6028(99)00010-2

M3 - Article

AN - SCOPUS:0345103259

SN - 0039-6028

VL - 424

SP - 36

EP - 54

JO - Surface Science

JF - Surface Science

IS - 1

ER -

Coupled desorption and site conversion of co-adsorbates: A lattice gas analysis of thermal desorption and spectroscopic data of (NO+O)/Ru(001)

Abstract

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