Abstract
We present evidence for mixed molecular and dissociative water adsorption at monolayer coverage on a rutile TiO2(110) surface free from oxygen vacancies using synchrotron radiation photoemission. At monolayer coverage the OH:H2O ratio is close to 0.5 and reducing the coverage by heating yields an increased OH:H2O ratio. At room temperature neither species originating from the monolayer on the defect-free surface can be detected. The OH species of the monolayer hence recombines and leaves the surface at much lower temperatures than OH formed by water dissociation on oxygen vacancies.
| Original language | English |
|---|---|
| Journal | Physical Review B (Condensed Matter and Materials Physics) |
| Volume | 80 |
| Issue number | 23 |
| DOIs | |
| Publication status | Published - 2009 |
Bibliographical note
The information about affiliations in this record was updated in December 2015.The record was previously connected to the following departments: Chemical Physics (S) (011001060)
Subject classification (UKÄ)
- Atom and Molecular Physics and Optics
Free keywords
- synchrotron radiation
- photoemission
- adsorption
- dissociation
- titanium compounds
- water