Synthesis and characterization of multiwalled carbon nanotubes produced using zeolite Co-beta

Abstract

Multiwalled carbon nanotubes are synthesized using Co-beta for the first time using the catalytic chemical vapour deposition method. The effects of reaction temperature, reaction time, and flow rate of acetylene on the growth of multiwalled carbon nanotubes are studied. From the TEM results it is established that the growth of multiwalled carbon nanotubes follows a tip growth mechanism. To understand the magnetic behavior of the Co, which is present at the tip of the nanotubes, magnetic measurements are performed using a SQUID magnetometer and the results are discussed.