Synthesis methods of carbon nanotubes

Abstract

Carbon nanotubes (CNTs) with their extraordinary mechanical, electrical, and thermal properties have built broad interest in most areas of science and engineering and are utilized for many applications in the nanotechnology area. There are many approaches for CNT synthesis. While arc discharge, laser ablation, and chemical vapor deposition are the most common methods, lots of rarely utilized CNT production methods were reported in the literature. In this chapter, a detailed discussion about CNT synthesis methods with their experimental process, advantages, and disadvantages are provided. Especially, the CVD method, which is the most promising CNT synthesis method, has been reviewed with its subtypes. CNT synthesis method directly defines the type and properties of nanotubes. Therefore, researchers are still working on new methods and the development of currently used methods. Literature studies indicate that different synthesis methods come to the fore for different features such as SWCNT or MWCNT production, vertically aligned nanotubes, high yield synthesis, large-area synthesis, etc. In this chapter, a general overview and comparison of these methods are made.