Adsorption and co-adsorption with CO of NO on Cu(110) studied with EELS and LEED

Conference · Thu Oct 01 04:00:00 EDT 1981

OSTI ID:7096987

Wendelken, J F

The adsorption of NO on Cu(110) and its interaction with co-adsorbed CO at a crystal temperature of 80 K have been investigated with EELS. Dissociation of NO occurring at higher temperatures of higher exposures has been studied with both EELS and LEED. For exposures of less than 1.2 Langmuirs of /sup 14/NO at a crystal temperature of 80 K, vibrational energies are initially observed at 106, 195, and 262 MeV with EELS. With increasing NO coverage, the first peak grows. However, both peaks vanish for exposures greater than 1.2 Langmuirs. If the crystal is heated above 113 K both peaks also vanish. The third peak, which represents the CO stretching vibration of less than 5% of a monolayer of CO, shifts upward in energy with increasing NO coverage but does not shift back when the first two peaks vanish. Hence, the NO or its products do not desorb under these conditions.

• Research Organization: Oak Ridge National Lab., TN (USA)
• DOE Contract Number: W-7405-ENG-26
• OSTI ID: 7096987
• Report Number(s): CONF-8009286-1-Draft; ON: DE82022272
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360104* -- Metals & Alloys-- Physical Properties
ADSORPTION
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CHALCOGENIDES
COPPER
ELEMENTS
METALS
NITRIC OXIDE
NITROGEN COMPOUNDS
NITROGEN OXIDES
OXIDES
OXYGEN COMPOUNDS
SORPTION
SORPTIVE PROPERTIES
SURFACE PROPERTIES
TEMPERATURE DEPENDENCE
TRANSITION ELEMENTS