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Spontaneous formation of size-selected bimetallic nanoparticle arrays

Authors
Journal
Surface Science
0039-6028
Publisher
Elsevier
Publication Date
Volume
606
Identifiers
DOI: 10.1016/j.susc.2011.09.010
Keywords
  • Self-Assembly
  • Surface Chemical Reaction
  • Clusters
  • Graphite
  • Surface Diffusion

Abstract

Abstract An original physical route is proposed to organize size-selected bimetallic nanoparticles on graphite surfaces. This approach is based on the soft landing of preformed clusters and is demonstrated for bimetallic Au xPt 1 − x clusters of different compositions. Particle coalescence is avoided thanks to cluster surface reactivity, leading to a self-assembly with a well-defined inter-particle separation (~ 1 nm).

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