Abstract
Carbon nanotubes (CNTs) have received the attention of researchers for the past 25 years. It is one of the most investigative material in the history of Nanoscience and mainly responsible for current Nanotechnology boom. This chapter describes the various techniques of synthesis of CNTs such as arc discharge, laser ablation and chemical vapor deposition. Special techniques like use of liquid solution in arc discharge, lithographic techniques, solar, electrolysis and hydrothermal for CNTs synthesis are also included. The chapter also discusses the mechanism proposed for the development of carbon nanotubes in these methods and summarizes the removal of impurities from these synthesized CNTs by chemical, physical, and multi-steps purifications.
Keywords: Arc discharge, Carbon nanotubes (CNTs), Chemical Purifications, Dry oxidation, Electrolysis, Hydrothermal, Laser ablation: CVD, Mechanisms, MWCNTs, Physical purifications, Solar, Synthesis of CNTs, SWCNTs, Wet oxidation.
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