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A single-walled carbon nanotubes (SWCNT) can be envisioned as strip of a graphene molecule (a single sheet of graphite) rolled and joined into a seamless cylinder.The structure of the nanotube can be characterized by the width of this hypothetical strip (that is, the circumference c or diameter d of the tube) and the angle α of the strip relative to the main symmetry axes of the hexagonal ...
Buckyballs and carbon nanotubes have been used as building blocks for a great variety of derivatives and larger structures, such as [27] Nested buckyballs ("carbon nano-onions" or "buckyonions") [35] proposed for lubricants; [36] Nested carbon nanotubes ("carbon megatubes") [37] Linked "ball-and-chain" dimers (two buckyballs linked by a carbon ...
Graphene can be created by opening carbon nanotubes by cutting or etching. [268] In one such method, multi-walled carbon nanotubes were cut open in solution by action of potassium permanganate and sulfuric acid. [269] [270] In 2014, carbon nanotube-reinforced graphene was made via spin coating and annealing functionalized carbon nanotubes. [244]
Carbon nanobuds are a newly created material combining two previously discovered allotropes of carbon: carbon nanotubes and fullerenes. In this new material, fullerene-like "buds" are covalently bonded to the outer sidewalls of the underlying carbon nanotube. This hybrid material has useful properties of both fullerenes and carbon nanotubes.
In recent decades, many more allotropes have been discovered and researched, including ball shapes such as buckminsterfullerene and sheets such as graphene. Larger-scale structures of carbon include nanotubes, nanobuds and nanoribbons. Other unusual forms of carbon exist at very high temperatures or extreme pressures.
Three dimensional molecular model of an all-carbon tubular fullerene. This is a list of notable computer programs that are used to model nanostructures at the levels of classical mechanics [1] and quantum mechanics. Furiousatoms [2] - a powerful software for molecular modelling and visualization; Aionics.io [3] - a powerful platform for ...
Carbon nanotubes (CNTs) are cylinders of one or more layers of graphene (lattice). Diameters of single-walled carbon nanotubes (SWNTs) and multi-walled carbon nanotubes (MWNTs) are typically 0.8 to 2 nm and 5 to 20 nm, respectively, although MWNT diameters can exceed 100 nm.
In nanotechnology, a carbon nanobud is a material that combines carbon nanotubes and spheroidal fullerenes, both allotropes of carbon, forming "buds" attached to the tubes. Carbon nanobuds were discovered and synthesized in 2006. [2] In this material, fullerenes are bonded with covalent bonds to the outer sidewalls of the underlying nanotube ...