329082.fig.002a
(a)
329082.fig.002b
(b)
Figure 2: (a) The TEM image of PAD:Fe-ZnO-SiO2 catalysts after H2 treatment at 550°C. (b) Size distribution diagrams of Fe metal obtained from the TEM images of the PAD:Fe-ZnO-SiO2 catalyst after H2 treatment at 550°C.