Nanoclusters of TiO2 wetted with gold

K. T. Park, V. Meunier, M. H. Pan, W. A. Shelton, N. H. Yu, E. W. Plummer

Research output: Contribution to journalArticlepeer-review

7 Scopus citations


We combined scanning tunneling microscopy and density functional theory to establish the structure-functionality relationship for nanometer-sized defects on TiO2(1 1 0). Three-angstrom high topographically distinct dots are ascribed to stoichiometric TiO2 nanoclusters with low coordination numbers. The under-coordinated O atoms of the nanocluster, with surface O atoms, provide exceptionally strong binding sites for Au nanoparticles. Our atomistic model elucidates a number of characteristics salient to low temperature CO oxidation by Au nanoparticles.

Original languageEnglish (US)
Pages (from-to)3131-3135
Number of pages5
JournalSurface Science
Issue number20
StatePublished - Oct 15 2009

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Materials Chemistry


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