An efficient approach toward production of near-zigzag single-chirality carbon nanotubes

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Volume Title
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Date
2024-04
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Language
en
Pages
8
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Science Advances, Volume 10, issue 14, pp. 1-8
Abstract
Synthesizing single-walled carbon nanotubes (SWCNTs) with a narrow chirality distribution is essential for obtaining pure chirality materials through postgrowth sorting techniques. Using carbon monoxide chemical vapor deposition, we devise a ruthenium (Ru) catalyst supported by silica for the bulk production of SWCNTs containing only a few (n, m) species. The result is attributed to the limited carbon dissociation on the supported Ru clusters, favoring the growth of only small-diameter SWCNTs at comparable growth rates. The resulting materials expedite high-purity single chirality separation using gel chromatography, leading to unprecedented yields of 3.5% for (9, 1) and 5.2% for (9, 2) nanotubes, which surpass those separated from HiPco SWCNTs by two orders of magnitude. This work sheds light on the large-quantity synthesis of SWCNTs with enriched species beyond near-armchair ones for their high-yield separation.
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Publisher Copyright: © 2024 the Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. no claim to original U.S. Government Works. distributed under a creative commons Attribution noncommercial License 4.0 (cc BY-nc).
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Li, Y, Li, L, Jiang, H, Qian, L, He, M, Zhou, D, Jiang, K, Liu, H, Qin, X, Gao, Y, Wu, Q, Chi, X, Li, Z & Zhang, J 2024, ' An efficient approach toward production of near-zigzag single-chirality carbon nanotubes ', Science Advances, vol. 10, no. 14, eadn6519, pp. 1-8 . https://doi.org/10.1126/sciadv.adn6519