Carbon nanotubes (CNTs), nanoscale hollow tubes of carbon atoms with
their unique characteristics, have been revolutionizing the technology world
because their unique structural and electrical properties make them ideal for a
wide variety of nanotechnology-based applications. This article gives a
synopsis of three prevalent methods of CNT synthesis. The field of
nanotechnology and nanoscience promote their investigation forward to produce
CNTs with acceptable parameters for future applications. Therefore, new
approaches to their synthesis need to be developed and optimized. Throughout
this paper, the history, the types, the structure, and the distinct well-developed
synthesis methods for preparing CNTs will be reviewed, including arc discharge,
laser ablation, and chemical vapor deposition (CVD).
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