The novel 'chiral-specific' carbon nanotube could be a holy grail in nanotechnology.
to make carbon nanotube batches with a single, desired chirality. Their method could simplify the purification of nanotubes that are all metallic or all semiconductors.are made from sheets of single-layer carbon atoms called graphene rolled into a cylinder. Since their discovery three decades ago, these nanostructures have attracted worldwide scientific attention due to their excellent properties.
As impressive as it sounds, CNTs are not easy to grow. They usually grow randomly with single and multiple walls and various chiralities.means that a molecule cannot be superimposed on its mirror image, or, in simpler terms, it refers to symmetry. Because chirality determines a nanotube's electrical properties, the ability to grow chiral-specific carbon nanotubes is a nanotechnology holy grail. It could lead to wires that, unlike copper or aluminum, transmit energy without loss.
"The catalyst particles are moving as the nanotubes grow, and that's principally important. "If your feedstock keeps moving away, you get a moving window where you're feeding some tubes and not the others," said lead author Bets.Like a giraffe stretching for leaves on a tall tree, carbon nanotubes reach for food as they grow
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