| 释义 |
buckytube, n. Chem.|ˈbʌkɪtjuːb|
[f. *buckyball n. + tube n.]
A cylindrical molecule of carbon consisting of two or more concentric tubes each formed of sheets of carbon atoms arranged helically.
1991New Scientist 16 Nov. 19/1 A Japanese scientist has discovered cylindrical carbon molecules, which he has dubbed ‘buckytubes’ because of their similarity to fullerenes, or ‘buckyballs’. 1992Ibid. 29 Feb. 21/1 The molecules, known as buckytubes, are like sheets of graphite which have been rolled up into tubes about a micrometre long and up to 30 nanometres across. 1992Sci. Amer. Oct. 92/3 Other buckytube variants should be insulators or semiconductors. But so far none has been shown to function as a superconductor. 1993Science 9 Apr. 164/3 Buckyballs and buckytubes both form in an apparatus in which a carbon arc is enclosed in high-pressure helium gas. |