Figure 11
Optical measurement showing reduction of graphene oxide (a) Raman spectra of graphene oxide and reduced graphene oxide (b) Raman spectra of reduced graphene oxide (with and without Ag nanoparticles) (c) Absorption spectra of graphene oxide and reduced graphene oxide. These measurements confirm the size of sp2 cluster reduce and the formation of new sp2 cluster takes place on reduction of graphene oxide.
