Single-wall carbon nanotube compositions
    1.
    发明申请
    Single-wall carbon nanotube compositions 审中-公开
    单壁碳纳米管组合物

    公开(公告)号:US20060231399A1

    公开(公告)日:2006-10-19

    申请号:US11410658

    申请日:2006-06-19

    IPC分类号: C07K1/26

    摘要: The invention relates to a process for sorting and separating a mixture of (n, m) type single-wall carbon nanotubes according to (n, m) type. A mixture of (n, m) type single-wall carbon nanotubes is suspended such that the single-wall carbon nanotubes are individually dispersed. The nanotube suspension can be done in a surfactant-water solution and the surfactant surrounding the nanotubes keeps the nanotube isolated and from aggregating with other nanotubes. The nanotube suspension is acidified to protonate a fraction of the nanotubes. An electric field is applied and the protonated nanotubes migrate in the electric fields at different rates dependent on their (n, m) type. Fractions of nanotubes are collected at different fractionation times. The process of protonation, applying an electric field, and fractionation is repeated at increasingly higher pH to separated the (n, m) nanotube mixture into individual (n, m) nanotube fractions. The separation enables new electronic devices requiring selected (n, m) nanotube types.

    摘要翻译: 本发明涉及一种根据(n,m)型分选(n,m)型单壁碳纳米管的混合物的方法。 (n,m)型单壁碳纳米管的混合物被悬浮,使得单壁碳纳米管分散分散。 纳米管悬浮液可以在表面活性剂 - 水溶液中进行,并且包围纳米管的表面活性剂保持纳米管分离并与其他纳米管聚集。 将纳米管悬浮液酸化以质子化纳米管的一部分。 施加电场,并且质子化的纳米管在电场中以取决于它们的(n,m)类型的不同速率迁移。 在不同的分馏时间收集纳米管的级分。 在越来越高的pH下重复质子化,施加电场和分级的过程,以将(n,m)纳米管混合物分离成单个(n,m)纳米管部分。 该分离使需要所选(n,m)纳米管类型的新电子器件成为可能。

    Efficient fluorimetric analyzer for single-walled carbon nanotubes
    2.
    发明申请
    Efficient fluorimetric analyzer for single-walled carbon nanotubes 审中-公开
    单壁碳纳米管的高效荧光分析仪

    公开(公告)号:US20080014654A1

    公开(公告)日:2008-01-17

    申请号:US11281784

    申请日:2005-11-16

    IPC分类号: G01N21/64

    摘要: The present invention is directed toward methods and devices for analyzing populations of single-wall carbon nanotubes (SWNTs) on the basis of their fluorescence properties and the comparison of said properties to fluorescence profiles of pre-determined SWNT compositions. Generally, such analyzing yields information about the composition of the SWNTs within said population. Such information includes, for example, the relative abundances of semiconducting SWNTs, the diameter distribution of such SWNTs, and the relative abundances of one or more particular SWNT species—as identified by one or more specific nanotube indices (n,m). The methods and devices of the present invention provide for the analysis of SWNT compositions in a rapid and efficient manner.

    摘要翻译: 本发明涉及用于分析单壁碳纳米管(SWNT)群体的方法和装置,其基于它们的荧光性质以及所述性质与预定的SWNT组合物的荧光分布的比较。 通常,这种分析产生关于所述群体内的SWNT的组成的信息。 这样的信息包括例如半导体SWNT的相对丰度,这种SWNT的直径分布以及一个或多个特定SWNT物质的相对丰度 - 如由一个或多个特定纳米管指数(n,m)所识别的。 本发明的方法和装置以快速且有效的方式提供SWNT组合物的分析。