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  • Title: Narrow (n,m)-distribution of single-walled carbon nanotubes grown using a solid supported catalyst.
    Author: Bachilo SM, Balzano L, Herrera JE, Pompeo F, Resasco DE, Weisman RB.
    Journal: J Am Chem Soc; 2003 Sep 17; 125(37):11186-7. PubMed ID: 16220926.
    Abstract:
    Unusually structure-selective growth of single-walled carbon nanotubes (SWNTs) has been attained using a CVD method with a solid supported catalyst. In this method, CO feedstock disproportionates on silica-supported catalytic nanoclusters of Co that are formed in situ from mixed salts of Co and Mo. The nanotube products are analyzed by spectrofluorimetry to reveal distributions resolved at the level of individual (n,m) structures. Two structures, (6,5) and (7,5), together dominate the semiconducting nanotube distribution and comprise more than one-half of that population. The average diameter of produced SWNTs is only 0.81 nm, and a strong propensity is found favoring chiral angles near the armchair limit.
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