吡啶型氮与石墨型氮有什么区别

Catalyst-Free Synthesis of Nitrogen- Doped Graphene via Thermal Annealing Graphite Oxide with Melamine and Its Excellent Electrocatalysis 你可以参考一下这篇文献，也许会对你有帮助的。里面有三种N-doped的XPS图。