An Overview of Carbon Nanotubes: Synthesis, Purification and Characterization

This work was aimed to explore the state-of-the-art in the field of carbon nanotubes exploring the different and more commonly used synthesis, purification and characterization methods. The diversification of techniques to elaborate, purify and analyze the diverse types of carbon nanotubes has driven to the development of their structures and to the growth of their applications. The historical analysis revealed an initial increase in the number of publications that has caused a deceleration in recent years; nonetheless, the scientific research in this field still presents a number of challenges.