Magnetic resonance evidence of manganese-graphene complexes in reduced graphene oxide Academic Article uri icon


  • We report on EPR and NMR study of reduced graphene oxide (RGO) produced by the Hummers method. We show that this RGO sample reveals isolated Mn 2+ ions, which originate from potassium permanganate used in the process of the sample preparation. These ions form paramagnetic charge-transfer complexes with the graphene planes and contribute to the 13 C spin–lattice relaxation.

publication date

  • January 1, 2012