Oxygen-induced surface reconstructions on curved Ag(111)

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 ad...

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Bibliographic Details
Published in:Journal of vacuum science & technology. A, Vacuum, surfaces, and films Vacuum, surfaces, and films, 2021-09, Vol.39 (5)
Main Authors: Turano, Marie E., Juurlink, Ludo B. F., Gillum, Maxwell Z., Jamka, Elizabeth A., Hildebrandt, George, Lewis, Faith, Killelea, Daniel R.
Format: Article
Language:English
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Summary: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 (
ISSN:0734-2101
1520-8559
DOI:10.1116/6.0001167