ABSTRACT
This chapter reviews the recent advances in the synthesis of carbon nanotubes with special attention to chemical vapor deposition (CVD) methods. CVD methods are promising for synthesizing high quality and quantity of carbon nanotubes. Fluidized bed and floating catalyst CVDs enable continuous production of CNT to be scaled up. Plasma-enhanced CVD can greatly lower the CNT growth temperature and control the growth of aligned CNT at pre-determined areas for device applications. Improved CVD methods allow one to fabricate macroscopic assembly of carbon nanotubes. The chirality and electronic properties of nanotubes are more uniform using new growth strategies, purification and separation methods, which are useful for potential applications. 2.1 IntroductionIijima [1991] reported the observation of crystallized and multiply layered tubular carbon nanostructures (multi-walled carbon
