Periodic Arrays of Metal Nanoclusters on Ultrathin Fe-Oxide Films Modulated by Metal-Oxide Interactions.

ABSTRACT: Rational design of highly stable and active metal catalysts requires a deep understanding of metal-support interactions at the atomic scale. Here, ultrathin films of FeO and FeO_2-x grown on Pt(111) are used as templates for the construction of well-defined metal nanoclusters. Periodic arrays of Cu clusters in the form of monomers and trimers are preferentially located at FCC domains of FeO/Pt(111) surface, while the selective location of Cu clusters at FeO₂ domains is observed on FeO_2-x /Pt(111) surface. The preferential nucleation and formation of well-ordered Cu clusters are driven by different interactions of Cu with the Fe oxide domains in the sequence of FeO₂-FCC > FeO-FCC > FeO-HCP > FeO-TOP, which is further validated by dens

SUBMITTER: Luo X 

PROVIDER: S-EPMC9875227 | biostudies-literature | 2023 Jan

REPOSITORIES: biostudies-literature