Urea-Based Synthesis of Zinc Oxide Nanostructures at Low Temperature

Figure 4

FE-SEM images of ZnO powders prepared using (a) conventional water bath heating, (b) the MH method for 2 min (average distribution of particles is inserted), and (c) the MH method for 8 min (average distribution of particles is inserted).

(a)

(b)

(c)