PROCESS FOR DERIVATIZING CARBON NANOTUBES WITH DIAZONIUM SPECIES AND COMPOSITIONS THEREOF
    21.
    发明申请
    PROCESS FOR DERIVATIZING CARBON NANOTUBES WITH DIAZONIUM SPECIES AND COMPOSITIONS THEREOF 有权
    用二氧化碳衍生碳纳米管的方法及其组合物

    公开(公告)号:US20090301896A1

    公开(公告)日:2009-12-10

    申请号:US11840433

    申请日:2007-08-17

    IPC分类号: C25B3/00 B82B3/00

    摘要: Methods for the chemical modification of carbon nanotubes involve the derivatization of multi- and single-wall carbon nanotubes, including small diameter (ca. 0.7 nm) single-wall carbon nanotubes, with diazonium species. The method allows the chemical attachment of a variety of organic compounds to the side and ends of carbon nanotubes. These chemically modified nanotubes have applications in polymer composite materials, molecular electronic applications, and sensor devices. The methods of derivatization include electrochemical induced reactions, thermally induced reactions, and photochemically induced reactions. Moreover, when modified with suitable chemical groups, the derivatized nanotubes are chemically compatible with a polymer matrix, allowing transfer of the properties of the nanotubes (such as, mechanical strength or electrical conductivity) to the properties of the composite material as a whole. Furthermore, when modified with suitable chemical groups, the groups can be polymerized to form a polymer that includes carbon nanotubes.

    摘要翻译: 用于碳纳米管的化学修饰的方法涉及包括小直径(约0.7nm)单壁碳纳米管与重氮物质的多壁和单壁碳纳米管的衍生化。 该方法允许将各种有机化合物化学连接到碳纳米管的侧面和末端。 这些化学改性的纳米管可用于聚合物复合材料,分子电子应用和传感器装置。 衍生化的方法包括电化学诱导反应,热诱导反应和光化学诱导反应。 此外,当用合适的化学基团改性时,衍生的纳米管与聚合物基质化学相容,允许将纳米管的性质(例如机械强度或电导率)转移到复合材料的整体性能上。 此外,当用合适的化学基团改性时,基团可以聚合形成包括碳纳米管的聚合物。

    Method of making a molecule-surface interface
    23.
    发明授权
    Method of making a molecule-surface interface 失效
    制作分子 - 表面界面的方法

    公开(公告)号:US07527831B2

    公开(公告)日:2009-05-05

    申请号:US11619073

    申请日:2007-01-02

    IPC分类号: B05D5/00

    摘要: This invention is generally related to a method of making a molecule-surface interface comprising at least one surface comprising at least one material and at least one organic group wherein the organic group is adjoined to the surface and the method comprises contacting at least one organic group precursor with at least one surface wherein the organic group precursor is capable of reacting with the surface in a manner sufficient to adjoin the organic group and the surface.

    摘要翻译: 本发明通常涉及一种制备分子 - 表面界面的方法,该分子 - 表面界面包括至少一个包含至少一种材料和至少一种有机基团的表面,其中有机基团邻接于该表面,并且该方法包括使至少一种有机基团 具有至少一个表面的前体,其中有机基团前体能够以足以邻接有机基团和表面的方式与表面反应。

    Bulk Separation of Carbon Nanotubes by Bandgap
    25.
    发明申请
    Bulk Separation of Carbon Nanotubes by Bandgap 有权
    通过带隙大量分离碳纳米管

    公开(公告)号:US20080260616A1

    公开(公告)日:2008-10-23

    申请号:US11572891

    申请日:2005-07-27

    IPC分类号: D01F9/12

    摘要: The present invention is directed to methods of separating carbon nanotubes (CNTs) by their electronic type (e.g., metallic, semi-metallic, and semiconducting). Perhaps most generally, in some embodiments, the present invention is directed to methods of separating CNTs by bandgap, wherein such separation is effected by interacting the CNTs with a surface such that the surface interacts differentially with the CNTs on the basis of their bandgap, or lack thereof. In some embodiments, such methods can allow for such separations to be carried out in bulk quantities.

    摘要翻译: 本发明涉及通过其电子型(例如金属,半金属和半导体)分离碳纳米管(CNT)的方法。 也许最普遍地,在一些实施方案中,本发明涉及通过带隙分离CNT的方法,其中这种分离通过使CNT与表面相互作用来实现,使得表面基于它们的带隙与CNT差分地相互作用,或 缺乏。 在一些实施方案中,这种方法可以允许大量进行这种分离。

    Purification of fullerenes
    29.
    发明授权
    Purification of fullerenes 失效
    富勒烯的纯化

    公开(公告)号:US5662876A

    公开(公告)日:1997-09-02

    申请号:US238640

    申请日:1994-05-05

    IPC分类号: C01B31/02 C01B31/00

    摘要: A low-cost and facile method of purifying fullerenes to obtain a preparation enriched in a fullerene of selected molecular weight using activated carbon involves adding a fullarena mixture to the top end of a column comprising activated carbon, passing a solvent in which the selected molecular weight fullerene is soluble through the column, and recovering a fraction enriched in the selected molecular weight fullerene from the bottom end of the column. In addition to activated carbon, the column may further comprise silica gel, diatomaceous earth, or other materials which aid in column packing and eluent flow. The invention also provides for preparation of gram quantities of pure C.sub.60 and C.sub.70 fullerenes after a single column pass.

    摘要翻译: 使用活性炭纯化富勒烯以获得富含选定分子量的富勒烯的制剂的低成本和容易的方法包括向包含活性炭的柱的顶端加入饱和混合物,通过其中所选择的分子量 富勒烯可通过塔溶解,并从塔的底端回收富集所选择的分子量富勒烯的馏分。 除了活性炭之外,该柱还可以包括硅胶,硅藻土或其它有助于柱填充和洗脱液流动的材料。 本发明还提供在单次通过后制备克数的纯C 60和C 70富勒烯。