Generation of carbon nanostructures with diverse morphologies by the catalytic aerosol-assisted vapor-phase synthesis method

The Fe catalyst-supported aerosol-assisted synthesis method was used to prepare carbon products of diverse morphologies from toluene. Aerosol mist generation was accomplished with an ultrasonic device. An open-ended quartz boat for powder collection was placed in the maximum temperature zone of the tube reactor (850 °C or 1000 °C). The morphology of the products was studied by SEM and TEM microscopy. Structural characterization was provided by powder XRD, whereas Raman spectroscopy was used to determine the structural quality/homogeneity of the products. The hydrogen gas sorption capacity of the product prepared at 850 °C was relatively high despite its rather moderate BET specific surface area.