Influence of alkali co-adsorption on the adsorption and reaction of CO2 on 
Pd(111)

Wambach, J.; Odörfer, G.; Freund, Hans-Joachim; Kuhlenbeck, H.; Neumann, M.

doi:10.1016/0039-6028(89)90065-4

Item

ITEM ACTIONSEXPORT

Add to Basket

Local TagsRelease HistoryDetailsSummary

Released

Journal Article

Influence of alkali co-adsorption on the adsorption and reaction of CO₂ on Pd(111)

MPS-Authors

There are no MPG-Authors in the publication available

External Resource

No external resources are shared

Fulltext (restricted access)

There are currently no full texts shared for your IP range.

Fulltext (public)

There are no public fulltexts stored in PuRe

Supplementary Material (public)

There is no public supplementary material available

Citation

Wambach, J., Odörfer, G., Freund, H.-J., Kuhlenbeck, H., & Neumann, M. (1989). Influence of alkali co-adsorption on the adsorption and reaction of CO₂ on Pd(111). Surface Science, 209(1-2), 159-172. doi:10.1016/0039-6028(89)90065-4.

Cite as: https://hdl.handle.net/21.11116/0000-000E-A69F-4

Abstract

The Pd(111) surface has been extensively used as a model substrate to study CO oxidation. The reverse reaction, CO₂ dissociation, however, has not been investigated to a comparable extend on this surface. We report angle-resolved photoemission studies on the system CO₂ (+Na)/Pd(111). On a clean Pd(111) surface at 85 K no CO₂ adsorption takes place. Upon small precoverages of Na, adsorption of CO₂ occurs at T = 85 K. Via an analysis of the angular dependence of the photoelectron spectra we obtain information about the orientation of the adsorbed molecules. Upon annealing the surface to 125 K, CO₂ reacts to form co-adsorbed CO and O. For a thick Na film on Pd(111) we also find CO₂ adsorption but the reaction of the adsorbed species occurs along different reaction channels, ending at adsorbed carbonate species.