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Who identified carbon nanotubes in 1991?
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fullerene
Two fullerene structures: an elongated carbon nanotube and a spherical buckminsterfullerene, or “buckyball.”
In 1991, Iijima Sumio of the NEC Corporation in Japan identified carbon nanotubes.12
While investigating material extracted from carbon electrodes that had been discharged under conditions used for C60 formation, Iijima discovered tiny, seamless tubes composed of concentric cylinders of carbon atoms arranged in hexagonal rings. These structures, now known as multiwalled carbon nanotubes, are considered elongated forms of fullerene.12