Evaluation of various processes for C60Fe production Original Research Article

Iron fullerides were prepared by chemical methods and in the electric arc. The reactions were performed in toluene or benzene solution using aluminium chloride or nitric/acetic acid as activating agents, while ferrocene was used as a source of iron. Iron: carbon plasma was investigated by means of the emission spectroscopy in order to determine the plasma temperature, C2, Fe and Fe+ concentrations. The samples were evaluated by mass spectrometry, thermal analyses, X-ray diffraction and by Mössbauer spectroscopy which revealed two doublets ascribed to the iron +2 and +3 ionization states, depending on thermal treatment of the samples.