A rapid, one-step, variable-valence metal ion assisted reduction method for graphene oxide

A process characterized by variable-valence metal (Mn, Co, Ni, etc) ion assisted reduction of graphene oxide with NaBH(4) heated at 90 degrees C for a short period of 1 h was developed to produce reduced graphene oxide (RGO), and the RGO sheets exhibited a homogeneous and stable dispersibility in water.