A nanotube is a nanometer scale wire-like structure that is most often composed of carbon: Wikipedia does not have an article with this exact name. ... Wiktionary (from wiki and dictionary) is a multilingual, Web-based project to create a free content dictionary, available in over 150 languages. ... A nanometre (American spelling: nanometer) is 1. ... General Name, Symbol, Number carbon, C, 6 Chemical series nonmetals Group, Period, Block 14, 2, p Appearance black (graphite) colorless (diamond) Standard atomic weight 12. ...
But inorganic nanotubes have also been synthesised: 3D model of three types of single-walled carbon nanotubes. ... An inorganic nanotube is a cylindrical molecule often composed of metal oxides, and morphologically similar to a carbon nanotube. ...
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Single-walled nanotubes are expected to debut this year in polymers as a way to strengthen plastic parts in cars or get them to conductelectricity through normally nonconducive materials.
It comes in two basic varieties: a single-walled nanotube, which is a single coil of carbon hexagons; and a multiwalled version, wherein a single tube is encased in a wider tube, which itself is inside other tubes.
Researchers have created defect-free nanotubes as long as four microns, which is 40 times the length of the average size of features on regular silicon chips.
Carbonnanotubes (CNTs) are an allotrope of carbon.
Nanotubes were observed in 1991 in the carbon soot of graphite electrodes during an arc discharge, by using a current of 100 amps, that was intended to produce fullerenes
Nanotubes grow at the sites of the metalcatalyst; the carbon-containing gas is broken apart at the surface of the catalyst particle, and the carbon is transported to the edges of the particle, where it forms the nanotubes.
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