NO2 adsorption on graphite at 90 K

P. Sjövall; S.K. So; B. Kasemo; R. Franchy; W. Ho

doi:10.1016/0009-2614(90)87284-X

NO₂ adsorption on graphite at 90 K

P. Sjövall, S.K. So, B. Kasemo, R. Franchy, W. Ho

Department of Physics

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Abstract

High-resolution electron-energy-loss spectra (HREELS) and thermal-desorption spectra (TDS) are presented for NO₂ adsorbed in the mono- and multi-layer regimes on graphite at 90 K. The TDS show a single desorption peak at 150 K at low coverages. A binding energy of 0.4 eV is estimated. At higher coverages, an additional peak due to multilayer desorption is observed at 140 K. The HREELS in the multilayer regime are fully compatible with a 3D solid structure of NO₂ dimers. In the monolayer regime, a dimer interpretation is also favoured over monomer adsorption. The results are consistent with the dimers adsorbed with the molecular axis normal to the graphite surface.

Original language	English
Pages (from-to)	125-130
Number of pages	6
Journal	Chemical Physics Letters
Volume	172
Issue number	2
DOIs	https://doi.org/10.1016/0009-2614(90)87284-X
Publication status	Published - 31 Aug 1990

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10.1016/0009-2614(90)87284-X

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@article{4d51b1adc3014000984960ef81068cea,

title = "NO2 adsorption on graphite at 90 K",

abstract = "High-resolution electron-energy-loss spectra (HREELS) and thermal-desorption spectra (TDS) are presented for NO2 adsorbed in the mono- and multi-layer regimes on graphite at 90 K. The TDS show a single desorption peak at 150 K at low coverages. A binding energy of 0.4 eV is estimated. At higher coverages, an additional peak due to multilayer desorption is observed at 140 K. The HREELS in the multilayer regime are fully compatible with a 3D solid structure of NO2 dimers. In the monolayer regime, a dimer interpretation is also favoured over monomer adsorption. The results are consistent with the dimers adsorbed with the molecular axis normal to the graphite surface.",

author = "P. Sj{\"o}vall and S.K. So and B. Kasemo and R. Franchy and W. Ho",

note = "Funding information: Support of this work by the Cornell Materials Science Center through the National Science Foundation Grant No. DMR-88-18558 is gratefully acknowledged. In addition, one of us (BK) has benefited from a Fulbright Scholarship, and one (PS) is supported by the Swedish Energy Agency. Publisher copyright: {\textcopyright} 1990 Published by Elsevier B.V.",

year = "1990",

month = aug,

day = "31",

doi = "10.1016/0009-2614(90)87284-X",

language = "English",

volume = "172",

pages = "125--130",

journal = "Chemical Physics Letters",

issn = "0009-2614",

publisher = "Elsevier B.V.",

number = "2",

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TY - JOUR

T1 - NO2 adsorption on graphite at 90 K

AU - Sjövall, P.

AU - So, S.K.

AU - Kasemo, B.

AU - Franchy, R.

AU - Ho, W.

N1 - Funding information: Support of this work by the Cornell Materials Science Center through the National Science Foundation Grant No. DMR-88-18558 is gratefully acknowledged. In addition, one of us (BK) has benefited from a Fulbright Scholarship, and one (PS) is supported by the Swedish Energy Agency. Publisher copyright: © 1990 Published by Elsevier B.V.

PY - 1990/8/31

Y1 - 1990/8/31

N2 - High-resolution electron-energy-loss spectra (HREELS) and thermal-desorption spectra (TDS) are presented for NO2 adsorbed in the mono- and multi-layer regimes on graphite at 90 K. The TDS show a single desorption peak at 150 K at low coverages. A binding energy of 0.4 eV is estimated. At higher coverages, an additional peak due to multilayer desorption is observed at 140 K. The HREELS in the multilayer regime are fully compatible with a 3D solid structure of NO2 dimers. In the monolayer regime, a dimer interpretation is also favoured over monomer adsorption. The results are consistent with the dimers adsorbed with the molecular axis normal to the graphite surface.

AB - High-resolution electron-energy-loss spectra (HREELS) and thermal-desorption spectra (TDS) are presented for NO2 adsorbed in the mono- and multi-layer regimes on graphite at 90 K. The TDS show a single desorption peak at 150 K at low coverages. A binding energy of 0.4 eV is estimated. At higher coverages, an additional peak due to multilayer desorption is observed at 140 K. The HREELS in the multilayer regime are fully compatible with a 3D solid structure of NO2 dimers. In the monolayer regime, a dimer interpretation is also favoured over monomer adsorption. The results are consistent with the dimers adsorbed with the molecular axis normal to the graphite surface.

UR - http://www.scopus.com/inward/record.url?scp=44949291226&partnerID=8YFLogxK

U2 - 10.1016/0009-2614(90)87284-X

DO - 10.1016/0009-2614(90)87284-X

M3 - Journal article

AN - SCOPUS:44949291226

SN - 0009-2614

VL - 172

SP - 125

EP - 130

JO - Chemical Physics Letters

JF - Chemical Physics Letters

IS - 2

ER -

NO₂ adsorption on graphite at 90 K

Abstract

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