Adsorption of CO on W(110) as studied using electron-stimulated desorptionand thermal desorption

Journal Article · Wed Apr 15 04:00:00 EST 1981 · Phys. Rev. B: Condens. Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.23.3788· OSTI ID:6451011

Weng, S

The chemisorption of CO on the (110) face of W at room temperature is studied using a combined technique consisting of electron-stimulated desorption (ESD) and thermal desorption. Measurements of the ESD ion energy distribution as a function of CO exposure, crystal temperature, and incident electron energy are presented in conjunction with a comparison with the corresponding thermal-desorption spectra. The correlation between the presence of the binding states in the thermal-desorption spectra and the liberation of ions in ESD is discussed in detail. An interesting result is the observation that O/sup +/ and CO/sup +/ are due to b/sub 1/ and virgin states of CO, respectively. In conjunction with data acquired from other surface techniques, the present results are used to discuss and propose the bonding geometry of the various binding states of CO on W(110).

• Research Organization: Physics Department, Brookhaven National Laboratory, Upton, New York 11973
• OSTI ID: 6451011
• Journal Information: Phys. Rev. B: Condens. Matter; (United States), Journal Name: Phys. Rev. B: Condens. Matter; (United States) Vol. 23:8; ISSN PRBMD
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360104* -- Metals & Alloys-- Physical Properties
BINDING ENERGY
BOND ANGLE
BOND LENGTHS
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CHALCOGENIDES
CHEMICAL REACTIONS
CHEMISORPTION
DESORPTION
DIMENSIONS
ELEMENTS
ENERGY
ION TEMPERATURE
LENGTH
MEDIUM TEMPERATURE
METALS
OXIDES
OXYGEN COMPOUNDS
REFRACTORY METALS
SEPARATION PROCESSES
SORPTION
SORPTIVE PROPERTIES
SURFACE PROPERTIES
TRANSITION ELEMENTS
TUNGSTEN