In my prior work, the nitrogen-doped graphene is applied as a non-metal catalyst for oxygen reduction reaction process in aidic and alkaline media, finally exhibit high current density and mass activity.[3,4] In this work, we also heat treated carbon with the goal of doping nitrogen into carbon, and apply this nitrogen-doped carbon as catalyst for CO2 electrochemical reduction process. The nitrogen-doped carbon catalyst exhibit higher current density and higher overpotential than the corresponding carbon, that is to say, the doped nitrogen atoms play an important role for the reduction process.
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