Ostwald Ripening in an Oxide‐on‐Metal System

• DOI: 10.1002/admi.202200222
• Publication Date: 2022-05-02T02:30:33Z
• Authors: Natalia Michalak; Tomasz Ossowski; Zygmunt Miłosz; Mauricio J. Prieto; Ying Wang; Mirosław Werwiński; Visnja Babacic; Francesca Genuzio; Luca Vattuone; Adam Kiejna; Thomas Schmidt; Mikołaj Lewandowski
• Keywords: Ostwald ripening; Stoichiometry

Abstract Ostwald ripening is a well‐known physicochemical phenomenon in which smaller particles, characterized by high surface energy, dissolve and feed the bigger ones that are thermodynamically more stable. The effect commonly observed solid liquid solutions, as well systems consisting of supported metal clusters or droplets. Here, evidence provided for occurrence an oxide‐on‐metal system which, this case, consists ultrathin iron monoxide (FeO) islands grown on Ru(0001) single‐crystal support. results reveal thermally‐driven sintering allows altering their fine structural characteristics, including size, perimeter length, defect density stoichiometry, crucial, example, from point view heterogeneous catalysis.