Wulff construction for alloy nanoparticles

E. Ringe*, Richard P Van Duyne, Laurence Marks

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

116 Scopus citations

Abstract

The Wulff construction is an invaluable tool to understand and predict the shape of nanoparticles. We demonstrate here that this venerable model, which gives a size-independent thermodynamic shape, becomes size dependent in the nanoscale regime for an alloy and that the infinite reservoir approximation breaks down. The improvements in structure and energetic modeling have wide-ranging implications both in areas where energetics govern (e.g., nucleation and growth) and where the surface composition is important (e.g., heterogeneous catalysis).

Original languageEnglish (US)
Pages (from-to)3399-3403
Number of pages5
JournalNano Letters
Volume11
Issue number8
DOIs
StatePublished - Aug 10 2011

Keywords

  • Alloy nanoparticles
  • nanoparticle shape
  • surface segregation
  • thermodynamic modeling
  • Wulff construction

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Mechanical Engineering

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