I recently analyzed the Raman spectrum of graphene-like nanomaterials. The characteristic Raman peaks of graphite materials are 1300cm-1 and 1580cm-1, but the Raman shift of my materials is 1600cm-1 and 1100cm-1. What could be the possible reason?
I think, Raman shift of your materials is correct. For highly oriented graphite materials, there is a very high G-band peak around 1600 cm-1 and a very negligible D-band peak around 1300 cm-1(sometime you may not see it). I also got a small peak around 1100 cm-1 with treated Toray carbon paper(TGP-H-120). I don't know the reason for peak around 1100 cm-1, may be due to " Vacancies and possible heteroatoms in the carbon network" (Louann mention that).
You can check this out: DOI:10.1021/acs.jpcc.9b04224