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Carbon Monoxide Adsorption on (111) and (110) Single-Crystal Nickel-Aluminum Alloy Surfaces

Published online by Cambridge University Press:  25 February 2011

J. M. Mundenar ,
R. H. Gaylord ,
S. C. Lui ,
E. W. Plummer ,
D. M. Zehner ,
W. K. Ford  and
L. G. Sneddon
J. M. Mundenar
Affiliation:
The Laboratory for Research on the Structure of Matter University of Pennsylvania, Philadelphia, PA 19104
R. H. Gaylord
Affiliation:
The Laboratory for Research on the Structure of Matter University of Pennsylvania, Philadelphia, PA 19104 Department of Physics. University of Oregon, Eugene, OR 97401
S. C. Lui
Affiliation:
The Laboratory for Research on the Structure of Matter University of Pennsylvania, Philadelphia, PA 19104
E. W. Plummer
Affiliation:
The Laboratory for Research on the Structure of Matter University of Pennsylvania, Philadelphia, PA 19104
D. M. Zehner
Affiliation:
Solid State Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831
W. K. Ford
Affiliation:
Department of Physics, Montana State University, Bozeman, MT 59717
L. G. Sneddon
Affiliation:
The Laboratory for Research on the Structure of Matter University of Pennsylvania, Philadelphia, PA 19104
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Abstract

Carbon monoxide chemisorption on the (111) and (110) surfaces of a single-crystal NiAI alloy has been studied using several surface sensitive techniques, including work function change measurements, ultra-violet photoelectron, thermal desorption and electron energy loss spectroscopy. Results from these experiments indicate that the reactivity of these NiAI surfaces toward CO is distinctly different and that although the CO/NiAI (111) surface behaves more like CO adsorbed on pure nickel surfaces, the CO/NiAI (110) surface is neither like CO adsorbed on pure nickel nor aluminum surfaces. The local CO bonding sites, as probed with photoemission and electron energy loss spectroscopy, are similar on both NiAI surfaces.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 83: Symposium J – Physical and Chemical Properties of Thin Metal Overlayers and Alloy Surfaces , 1986 , 59
Copyright
Copyright © Materials Research Society 1987

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References

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