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

Figure 3

Raman spectra of GO, Mn₃O_4, and GM composite prepared with Mn²⁺/GO mass percent of 50 : 50. Numbers in the bracket represent the D/G intensity ratio of GO and GM composite.