(247b) Effect of the Oxygen Content of Precursors on the Structural Properties of Nitrogen doped Multiwall Carbon Nanotubes

Ali Qajar, Maryam Peer, Henry C. Foley

Abstract:

                Nitrogen doped carbon nanotubes are synthesized by using liquid phase precursors. Acetonitrile is used as carbon and nitrogen source and ferrocene is employed as the catalyst. Also, toluene and THF are used as auxiliary carbon sources. All reactions are performed at 900 °C and constant flow rates of 1000 sccm for Ar, the carrier gas and liquid injection rate of 10 ml/hr for the reactant solution. The structural properties of the nanotubes are characterized by using SEM and TEM imaging, Raman spectroscopy, XRD and XPS. Our study shows despite pervious results, addition of THF does not significantly increase the nitrogen content of nanotubes. These outcomes are consistent with newer results, suggesting that order of 0.1% or less nitrogen doping can significantly change the structural properties of nanotubes.