A new method to quickly produce fibers from carbon nanotubes is both handmade and high tech. The method allows researchers to make short lengths of strong, conductive fibers from small samples of bulk nanotubes in about an hour. In 2013, Rice University chemist Matteo Pasquali found a way to spin full spools of thread-like nanotube fibers for aerospace, automotive, medical, and smart-clothing applications. The fibers look like cotton thread but perform like metal wires and carbon fibers.
Nitrogen-doped carbon nanotubes or modified graphene nanoribbons could be effective, less costly replacements for expensive platinum in fuel cells, according to a new study. In fuel cells, platinum is used for fast oxygen reduction, the key reaction that transforms chemical energy into electricity. The findings come from computer simulations scientists created to see how carbon nanomaterials could be improved for fuel-cell cathodes. Their study reveals the atom-level mechanisms by which doped nanomaterials catalyze oxygen reduction reactions (ORR). Doping with nitrogen…
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