Large scale production of multiwall carbon nanotubes (MWCNTs) has been achieved by a solution method. A heated bubble chamber is used as a hydrocarbon source from liquid n-hexane, and a Fe catalyst precursor is prepared by Fe(CO)5 which is dissolved into the n-hexane. The temperature and dissolved Fe concentration in the n-hexane have influences on the synthesis of MWCNTs. The synthesized MWNTs are collected by an electromagnet.
Carbon nanotubes; Solution method; Carbon nanotubes mass production
Jouranl of ceramic processing research / International organization for ceramic processing