EPR Study of Fe_3C Nanoparticles in Carbon Aerosol Aggregates

摘要

This work investigates the morphology and magnetic properties of Fe3C-carbon aerosol aggregates. Aerosol aggregates were produced during co-pyrolysis of Fe(CO)_5+C_3H_8+Ar mixture in a flow reactor. The pyrolysis temperature was 1280 K. The aggregate morphology was studied by Transmission Electron Microscopy (TEM). Aerosol aggregates consisted of carbon nanotubes (Fig. la) and Fe_3C nanoparticles (10-15 nm in diameter) covered by amorphous carbon (Fig. 1b).