Carbon nanotubes

What is carbon nanotube?
A carbon nanotube is a small cylindrical carbon structure made of graphene. The tube includes hexagonal structures. Despite their very small size, carbon nanotubes are very strong. They are currently used for structural reinforcement in applications such as rebar, but could also be used as semiconductors.

Carbon nanotubes are also known as 'Buckytubes' because they resemble R. Buckminster Fuller's geodesic domes.

Carbon nanotubes are very small structures made of graphene. They get their name because their diameter is roughly a nanometer thick. Carbon nanotubes are surprisingly strong for their small size.

Current uses include polymers to improve or inhibit electrical conductivity, such as in antistatic bags. They can also be used in structural reinforcements such as concrete rebar, but one of the most interesting uses is in semiconductors. Carbon nanotubes could replace silicon in chip manufacture. Carbon nanotubes are grown in a laboratory using a catalyst deposited on a surface or suspended in a hot gas stream.

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