Identification of the Surface Phases Formed on the Ag(111) Face during Molecular Oxygen Adsorption at Room Temperature Full article
| Journal |
Physics of Wave Phenomena
ISSN: 1541-308X , E-ISSN: 1934-807X |
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| Output data | Year: 2025, Volume: 33, Number: 6, Pages: 424-433 Pages count : 10 DOI: 10.3103/s1541308x25700335 | ||||
| Tags | Clusters and Nanostructures on Surfaces, Phase Transitions and Multiphase Systems,, Solid-State Chemistry, Surface Chemistry, Surface , pectroscopy, Surfaces, Interfaces and Thin Film | ||||
| Authors |
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| Affiliations |
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Funding (1)
| 1 | Russian Science Foundation | 24-63-00037 |
Abstract:
Adsorption of molecular oxygen on the Ag(111) surface at room temperature has been studied using scanning tunneling microscopy (STM), Auger-electron spectroscopy (AES), temperature programmed desorption (TPD), and density functional theory (DFT). In the early stage of adsorption, the STM images show formation of a disordered phase in the form of dark spots (local oxide (Ag6O6) rings. Further O2 dosing leads to the formation of a set of bright objects 5–8 Å in size, which were associated with CO2 molecules stabilized on the surface due to the presence of H2O molecules. Heating of the system to temperatures above 423 K led to partial desorption of silver dioxide molecules and formation of ordered striped () and hexagonal (3 × 3) phases. According to the DFT calculations, the (3 × 3) phase can be interpreted as surface high-temperature silver carbonate (Ag2CO3), adsorbed on Ag(111). Small areas with the (3 × 3) phase can be seen in STM images even after heating to 540 K, which indicates higher temperature stability of surface carbonates on Ag(111) than it was believed previously.
Cite:
Andryushechkin B.V.
, Pavlova T.V.
, Shevlyuga V.M.
, Nartova A.V.
, Bukhtiyarov V.I.
Identification of the Surface Phases Formed on the Ag(111) Face during Molecular Oxygen Adsorption at Room Temperature
Physics of Wave Phenomena. 2025. V.33. N6. P.424-433. DOI: 10.3103/s1541308x25700335 WOS Scopus OpenAlex
Identification of the Surface Phases Formed on the Ag(111) Face during Molecular Oxygen Adsorption at Room Temperature
Physics of Wave Phenomena. 2025. V.33. N6. P.424-433. DOI: 10.3103/s1541308x25700335 WOS Scopus OpenAlex
Dates:
| Submitted: | Sep 8, 2025 |
| Accepted: | Sep 12, 2025 |
| Published print: | Dec 29, 2025 |
| Published online: | Dec 29, 2025 |
Identifiers:
| Web of science: | WOS:001650923200006 |
| Scopus: | 2-s2.0-105026216880 |
| OpenAlex: | W7117467038 |
Citing:
| DB | Citing |
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| OpenAlex | Нет цитирований |
| Scopus | Нет цитирований |