Figure 2

FE-SEM images of Zn foil in DI water at room temperature for (a) 0 h, (b) 8 h, (c) 16 h, (d) 24 h, (e) 32 h, (f) 40 h. Inset images are enlarged images for clarity. (g) Showed the EDX of various spot of the Zn surface after 24 h DI water exposure.