Dynamics of Adatom and Vacancy Islands on Au(111) in Alkaline and Acidic Media.

ABSTRACT: Gold (Au), especially single-crystalline Au(111), has been extensively studied in fundamental electrochemistry due to its unique properties, including high conductivity, chemical stability, and well-defined surface characteristics, which make it an ideal model system for electrochemical investigations. At the same time, the Au(111) surface is known to degrade during oxidation-reduction cycling in commonly used electrolytes, exhibiting the formation of atomic-scale vacancy and adatom islands. Although there are many fundamental studies on these degradation processes, only a limited number of studies have been performed in alkaline media. In this work, we study the roughening and healing characteristics of Au(111) upon oxidation-reduction treatments in H₂SO₄ and NaOH. W

SUBMITTER: Moser T 

PROVIDER: S-EPMC12359112 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature