2000 character limit reached
DFT study of noble metal impurities on TiO_2(110) (1109.3029v1)
Published 14 Sep 2011 in cond-mat.str-el and cond-mat.mtrl-sci
Abstract: Atomic and electronic structures of TiO_2(110) surface with possible adsorptional, substitutional and interstitial Au or Pt elemental impurities at full and one-sixth monolayer concentrations were investigated by density functional theory calculations using the projector augmented wave approach within the plane wave method. Relative thermodynamic stabilities of such phases have been discussed by means of their surface free energies. Our results suggest that tunable photocatalytic activity can be achieved on Pt atom admixed rutile (110) surface at low coverages.