Details

Autor(en) / Beteiligte

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

Titel

Nanoclusters of TiO 2 wetted with gold

Ist Teil von

• Surface science, 2009, Vol.603 (20), p.3131-3135

Ort / Verlag

Elsevier B.V

Erscheinungsjahr

2009

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• We combined scanning tunneling microscopy and density functional theory to establish the structure–functionality relationship for nanometer-sized defects on TiO 2(1 1 0). Three-angstrom high topographically distinct dots are ascribed to stoichiometric TiO 2 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.