N-containing nano-graphite

We developed a simple method to fabricate a nitrogen N-containing nano-graphite with magnetic moments. By using chlorinated phthalonitrile as the building block and potassium K as the coupling reagent, a paramagnetic N-containing nano-graphite has been successfully prepared. From transmission electron microscopy images, X-ray photoelectron spectroscopy, and X-ray diffraction experiments, it is evident that the reaction product consists of randomly connected flakes of nano-graphite that contains large amount of N-decorated vacancy and edges. Interestingly, this N-containing nano-graphite shows a Curie-like paramagnetism that originates isolated magnetic moments on N-decorated vacancies and edges. These results make the N-containing nano-graphite a promising candidate for versatile applications in the fields of magnetics and spintronics.