Research Article

Kinetic Study on the CsXH3−X PW12O40/Fe-SiO2 Nanocatalyst for Biodiesel Production

Figure 4

The SEM images of PW12O40/Fe-SiO2 nanocatalyst, (a) precursor and (b) calcined catalyst.
612712.fig.004a
(a)
612712.fig.004b
(b)