Oxygen-induced surface reconstructions on curved Ag(111)
| Autor: | Daniel R. Killelea, Maxwell Z. Gillum, George Hildebrandt, Ludo B. F. Juurlink, Faith Lewis, Marie E. Turano, Elizabeth A. Jamka |
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| Rok vydání: | 2021 |
| Předmět: |
Surface (mathematics)
Materials science Analytical chemistry chemistry.chemical_element Surfaces and Interfaces Condensed Matter Physics Oxygen Surfaces Coatings and Films Catalysis law.invention Metal Planar Adsorption chemistry law visual_art visual_art.visual_art_medium Scanning tunneling microscope Single crystal |
| Zdroj: | Journal of Vacuum Science & Technology A. 39:053201 |
| ISSN: | 1520-8559 0734-2101 |
| DOI: | 10.1116/6.0001167 |
| Popis: | The adsorption of oxygen and the resultant O-induced surface reconstructions are key components in heterogeneously catalyzed reactions on silver metal surfaces. O uptake and reconstructions on planar Ag(111) are well-characterized, and in this paper, we show that curved Ag(111) features similar O adsorption and reconstructions. Through a systematic scanning tunneling microscope study of a curved Ag(111) single crystal exposed to gas-phase atomic oxygen at a temperature of 525 K, we observed O a d and, upon higher coverages, saw p( 4 × 4) and p( 4 × 5 √ 3) reconstructions form on both the A-type and B-type steps. Exposures at low temperatures ( |
| Databáze: | OpenAIRE |
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