High Temperature Vacuum Annealing and Hydrogenation Modification of Exfoliated Graphite Nanoplatelets

Figure 3

XPS elemental scan of GNPs. (a) GNPs; (b) GNPs annealed without exposure to air; (c) GNPs annealed then exposed to air; (d) GNPs annealed then hydrogenated.

(a)

(b)

(c)

(d)