412165.fig.007a
(a)
412165.fig.007b
(b)
Figure 7: Pt 4f (a) and O 1s (b) XPS core level spectra of the Pt catalyst on Nb2O5/C support at room temperature (RT), after annealing under UHV conditions at 360°C and after reduction at 360°C under 20% H2 in N2 flow.