Initial Stage of O2 Adsorption on Ag(100): Vacancies and Local Oxide Formation | Sciact - CRIS-system of Boreskov Institute of Catalysis

Initial Stage of O2 Adsorption on Ag(100): Vacancies and Local Oxide Formation Full article

Journal

PCCP: Physical Chemistry Chemical Physics
ISSN: 1463-9076 , E-ISSN: 1463-9084

Output data

Year: 2026, Volume: 28, Number: 1, Pages: 47-51 Pages count : 5 DOI: 10.1039/d5cp04099j

Authors

Andryushechkin B.V. ^1,2 , Pavlova T.V. ¹ , Shevlyuga V.M. ¹ , Nartova A.V. ³ , Bukhtiyarov V.I. ³

Affiliations

1	Prokhorov General Physics Institute of the Russian Academy of Sciences, Vavilov str. 38, 119991, Moscow, Russia
2	HSE University, Myasnitskaya str. 20, 101000, Moscow, Russia
3	Boreskov Institute of Catalysis, Pr. Lavrentieva 5, 630090, Novosibirsk, Russia

The early stage of molecular oxygen adsorption on the Ag(100) surface was reexamined with scanning tunneling microscopy (STM) and density functional theory. Using an oxygen-functionalized STM tip, we demonstrated that the simple interpretation of the individual objects randomly distributed over the surface as chemisorbed oxygen atoms is incompatible with the cross-shaped structures observed in atomic-resolution images in the current work. In our model, each feature is an oxide-like cross formed by two intersecting O–Ag–O–Ag–O chains, with oxygen atoms in vacancies in the Ag(100) layer. Furthermore, we found numerous oxygen-free vacancies randomly diffusing over the surface under the STM probe even at 77 K.

Andryushechkin B.V. , Pavlova T.V. , Shevlyuga V.M. , Nartova A.V. , Bukhtiyarov V.I.
Initial Stage of O2 Adsorption on Ag(100): Vacancies and Local Oxide Formation
PCCP: Physical Chemistry Chemical Physics. 2026. V.28. N1. P.47-51. DOI: 10.1039/d5cp04099j WOS Scopus РИНЦ AN PMID OpenAlex

Submitted:	Oct 24, 2025
Accepted:	Nov 28, 2025
Published online:	Dec 1, 2025
Published print:	Jan 7, 2026

Web of science:	WOS:001634798300001
Scopus:	2-s2.0-105024684352
Elibrary:	88177241
Chemical Abstracts:	2026:117487
PMID:	41368985
OpenAlex:	W4416846126

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