(a)

(b)

(c)

Figure 3: DRIFT spectrums for H2O and M-OH: (a) Mo/TiO2 after reduction under H2 at 300°C and He flow at RT. (b) As (a) for Pt-Mo/TiO2 and He flow at 350 K. (c) As (b) under H2 flow. Since M-OH becomes depleted in hydrogen flow, the same correspondingly occurs with water.