The correct answer is (a) Fuller.
Carbon nanotubes (CNTs) are a form of carbon with a cylindrical nanostructure. They are composed of rolled-up sheets of graphene, which is a single layer of carbon atoms arranged in a hexagonal lattice. CNTs have a wide range of potential applications in nanotechnology, electronics, and materials science.
The first CNTs were discovered in 1991 by Sumio Iijima, a Japanese scientist working at NEC Corporation. Iijima was studying soot produced by arc discharge between carbon electrodes and observed that the soot contained long, thin, cylindrical particles. He named these particles “buckytubes” after Buckminster Fuller, the American architect who designed geodesic domes.
In 1993, Richard Smalley, Robert Curl, and Harold Kroto, three American scientists, were awarded the Nobel Prize in Chemistry for their discovery of fullerenes, a class of molecules that includes buckminsterfullerene (C60). Fullerenes are spherical or ellipsoidal molecules composed of carbon atoms arranged in a cage-like structure.
The discovery of fullerenes led to
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