A nanotube is a nanoscale cylindrical structure with a hollow core, typically composed of carbon atoms, though other materials can also form nanotubes. Carbon nanotubes (CNTs) are the most well-known and widely studied type, consisting of rolled-up sheets of graphene with diameters ranging from about 1 to tens of nanometers and lengths up to millimeters.[1][2] These structures exhibit remarkable physical, chemical, and electrical properties, including high tensile strength, excellent thermal and electrical conductivity, and unique quantum effects due to their one-dimensional nature.[2] Nanotubes can be classified into two main categories: single-walled nanotubes (SWNTs) and multi-walled nanotubes (MWNTs), each with distinct characteristics and potential applications. Since their discovery in 1991, nanotubes have been the subject of intense research and development, with promising applications in fields such as electronics, materials science, energy storage, and medicine.[1][3]
- ^ a b Maruyama S, Arnold MS, Krupke R, Peng LM (February 2022). "Physics and applications of nanotubes". Journal of Applied Physics. 131 (8). doi:10.1063/5.0087075.
- ^ a b Ren G (September 2024). "Carbon nanotube". Encyclopedia Britannica.
- ^ Reidel H (March 2017). "Current and Potential Applications of Carbon Nanotubes". PreScouter.