Preparation of Sulfur-Free Exfoliated Graphite by a Two-Step Intercalation Process and Its Application for Adsorption of Oils

Figure 5

SEM images of (a) sectional morphology of natural flake graphite, (b) sectional morphology of GIC, and (c–f) surface morphology of EG: the magnification of each image is listed as follows: (a) ×5000, (b) ×500, (c) ×100, (d) ×500, (e) ×2000, and (f) ×10000.

(a)

(b)

(c)

(d)

(e)

(f)