Fig. (3) Top: Snapshots of a formamide-water mixture in the presence of TiO2 (anatase; left) and Pt (platinum; right) surfaces. Middle: Z-density distributions of formamide (the solid line) and water (the dashed line) on the TiO2 (left) and Pt (right) surfaces. Bottom: The relation between ln D(T) and reciprocal temperature in Kelvin; the solid line is for formamide and the dashed line is for water in the presence of TiO2 (left) and Pt (right) surfaces.