Preparation of Metal-Free Nitrogen-Doped Graphene Via Direct Electrochemical Exfoliation of Graphite in Ammonium Nitrate

Abstract

Nitrogen-doped graphene (N-graphene) nanosheets have been synthesized via electrochemical intercalation and exfoliation of graphite rods in ammonium nitrate aqueous solutions. This method produces N-graphene free from possible metal contaminations that can be utilized as efficient electrocatalysts towards oxygen reduction reactions.