The effect of doping temperature on the nitrogen-bonding configuration of nitrogen-doped graphene by hydrothermal treatment

Abstract

Nitrogen-doped graphene was synthesized by hydrothermal treatment of graphene oxide with ammonia at different doping temperatures. As the doping temperature increased, each type of nitrogen-bonding showed different tendencies. There was a high proportion of pyrrolic-N, but the proportion was relatively lower with temperature. Despite its smaller content, pyridinic-N plays a prominent part.