Synthesis of Fe-included onion-like Fullerenes by chemical vapor deposition

Fe-included Onion-Like Fullerenes (OLFs) have been synthesized by Chemical Vapor Deposition(CVD) at 1100 °C in all zones. The samples with diameter from 15 to 40 nm have been characterised by XRD, FESEM, HRTEM, and Raman methods. The results show that Fe-included OLFs are of high degree graphitization. It is the strain of graphene shells and the uniform size of Fe-included OLFs that caused the Raman spectra shifted upward slightly from 1582 cm− 1.