Solvothermal Synthesis of Mn₃O₄ Nanoparticle/Graphene Sheet Composites and Their Supercapacitive Properties

Figure 2

XPS spectra of (a) C1s region of GO and (b) C1s region, (c) survey scan, and (d) Mn2p region of GM composite prepared with Mn²⁺/GO mass percent of 50 : 50.

(a)

(b)

(c)

(d)