Figure 6
From: Dispersion and stability mechanism of Pt nanoparticles on transition-metal oxides
(a) and (b) Top and side views of anatase TiO2(101) surface, respectively. Top views of (c1) bare–TiO2(101), (d1) oxidized–TiO2(101), and (e1) reduced–TiO2(101) surfaces, respectively. The green vertical arrows in (d1) and (e1) indicate added (oxidized–TiO2) and removed (reduced–TiO2) O atoms, respectively. DFT calculation results with a Pt adatom on (c2) bare–TiO2(101), (d2) oxidized–TiO2(101), and (e2) reduced–TiO2(101) surfaces, respectively. ΔE is the total energy change due to a Pt adatom, and it is described in the text. (c3), (d3), and (e3) are the side views of (c2), (d2), and (e2), respectively. The gray, red, and blue symbols are Ti, O, and Pt atoms, respectively.
