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Review on Current Synthetic Methodologies of Carbon Nanotubes



Carbon Nanotubes (CNTs) possess an unique one-dimensional molecular geometry with large surface area. Recently, CNTs becomes a thrust area of research as it plays a key role in molecular engineering due to their excellent mechanical, electrical, and thermal properties. The CNTs finds a wide range of applications in various fields due to the presence of unique properties in them. The Multiple Walled Carbon Nanotubes (MWCNTs) are thermally, mechanically, and structurally stronger than Single Walled Carbon Nanotubes (SWCNTs). Most of the methods of CNTs synthesis like solar method, laser ablation, and electric arc discharge are based on the sublimation of carbon in inert atmosphere. There are certain chemical methods like CVD, electrolysis, catalytic decomposition of hydrocarbons, heat treatment of a polymer, ball milling, etc. can also be used for the preparation of CNTs. Attempts have been made in the present review to discuss all synthetic methods of CNTs, their discoverers, the importance of techniques, various parameters which affect the method in detail and mechanism for growth of CNTs. The aim of this article is to provide a comprehensive pathway for researchers who deal with the synthetic methodology of carbon nanotubes. This review also provides a great interest for the readers of material science and nanochemistry.
