The defined adsorption site of sodium on the TiO2(110)–(1×1) surface
| Autor: | Jacques Jupille, P. Lagarde, Anne-Marie Flank, R. J. Prado, Sylvie Bourgeois |
|---|---|
| Přispěvatelé: | Groupe de Physique des Solides (GPS), Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS) |
| Rok vydání: | 2004 |
| Předmět: |
Alkali metals
Sodium Inorganic chemistry chemistry.chemical_element 02 engineering and technology Extended X-ray absorption fine structure (EXAFS) 01 natural sciences Oxygen Metal Adsorption 0103 physical sciences Atom Materials Chemistry 010306 general physics Titanium oxide Extended X-ray absorption fine structure Chemistry Surfaces and Interfaces 021001 nanoscience & nanotechnology Condensed Matter Physics Alkali metal Surfaces Coatings and Films Crystallography visual_art visual_art.visual_art_medium Absorption (chemistry) 0210 nano-technology |
| Zdroj: | Surface Science Surface Science, Elsevier, 2004, 553 (1-3), pp.115. ⟨10.1016/j.susc.2004.01.054⟩ |
| ISSN: | 0039-6028 |
| DOI: | 10.1016/j.susc.2004.01.054 |
| Popis: | The adsorption site of sodium on the TiO2(1 1 0)–(1 × 1) surface was studied by extended X-ray absorption fine structure. For coverage ranging between 0.25 and 0.5 ML, we find that sodium is on an ‘in-between' site where it is bound to two bridging oxygen atoms at 2.25 Å and one in-plane oxygen atom at 2.40 Å, in full agreement with DFT calculations. At higher coverage the site becomes an hollow site where the sodium atom is equidistant to the three oxygen atoms at 2.30 Å, while metallic sodium clusters are also formed at the surface. |
| Databáze: | OpenAIRE |
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