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Evidence, by metastable quenching spectroscopy, that CO adsorbs on K/Ni(111) near potassium and lies flat or tilts when heated

Authors
Journal
Surface Science Letters
0167-2584
Publisher
Elsevier
Publication Date
Volume
159
Issue
1
Identifiers
DOI: 10.1016/0167-2584(85)91229-0

Abstract

Abstract By using metastable quenching spectroscopy (MQS) we show that if a K/Ni(111) surface with low K coverage (θ K=0.1 and 0.12) is exposed to low doses of CO (0.3 L), the CO molecules are adsorbed near the potassium atoms. Heating from 118 to 298 K results in spectral changes that indicate that the CO molecules closest to the potassium atoms tilt strongly or lie flat on the surface.

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