A study of CO chemisorption on the stepped Cu(311) surface by angle resolved photoemission spectroscopy

A study of CO chemisorption on the stepped Cu(311) surface by angle resolved photoemission spectroscopy

The binding geometry and equilibrium adsorption thermodynamics of CO chemisorbed on Cu(311) have been studied by angle resolved photoemission spectroscopy employing Heii (40.8 eV) radiation. Under saturation conditions, three distinct CO orientations are found; two of these are with the molecular ax...

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Veröffentlicht in:The Journal of chemical physics 1981-09, Vol.75 (6), p.3142-3150
Hauptverfasser: Shinn, N. D., Trenary, M., McClellan, M. R., McFeely, F. R.
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container_end_page 3150
container_issue 6
container_start_page 3142
container_title The Journal of chemical physics
container_volume 75
creator Shinn, N. D.
Trenary, M.
McClellan, M. R.
McFeely, F. R.
description The binding geometry and equilibrium adsorption thermodynamics of CO chemisorbed on Cu(311) have been studied by angle resolved photoemission spectroscopy employing Heii (40.8 eV) radiation. Under saturation conditions, three distinct CO orientations are found; two of these are with the molecular axis nearly perpendicular to either the (100) or (111) microsurface. A third geometry, characterized by a lower heat of adsorption with complex coverage dependence, is seen in which the molecule lies flat on the (311) surface, parallel to the step direction. Local chemisorption sites are proposed and their significance in catalytic processes is considered.
doi_str_mv 10.1063/1.442370
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title A study of CO chemisorption on the stepped Cu(311) surface by angle resolved photoemission spectroscopy
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