There are two main types of CNTs: Single-Walled Carbon Nanotubes (SWCNTs) and Multi-Walled Carbon Nanotubes (MWCNTs). SWCNTs consist of a single graphene cylinder, whereas MWCNTs comprise multiple concentric graphene cylinders nested within each other. The properties of CNTs can vary significantly depending on their type, diameter, chirality, and the number of walls.
