Method of producing carbon nanotubes
    41.
    发明申请
    Method of producing carbon nanotubes 审中-公开
    生产碳纳米管的方法

    公开(公告)号:US20100239491A1

    公开(公告)日:2010-09-23

    申请号:US11475919

    申请日:2006-06-28

    IPC分类号: D01F9/12

    摘要: The present teachings are directed to methods of preparing cylindrical carbon structures, specifically single-walled carbon nanotubes, with a desired chirality. The methods include the steps of providing a catalyst component on a substrate and a carbon component, contacting the catalyst component and the carbon component to produce a cylindrical carbon structure. Then, no longer providing the carbon component and determining the chirality of the cylindrical carbon structure. The catalyst component is then cleaned and the process is repeated until the cylindrical carbon structure fulfills a desired characteristic, such as, length. The chirality of the single-walled carbon nanotube grown, after cleaning of the catalyst component, has the same chirality as the initially produced nanotube.

    摘要翻译: 本教导涉及制备具有所需手性的圆柱形碳结构,特别是单壁碳纳米管的方法。 所述方法包括在基材和碳组分上提供催化剂组分,使催化剂组分和碳组分接触以产生圆柱形碳结构的步骤。 然后,不再提供碳组分并确定圆柱形碳结构的手性。 然后清洁催化剂组分,并重复该过程,直到圆柱形碳结构满足期望的特性,例如长度。 在清洁催化剂组分之后生长的单壁碳纳米管的手性具有与最初制备的纳米管相同的手性。

    Dry Powder Injector
    42.
    发明申请
    Dry Powder Injector 有权
    干粉喷射器

    公开(公告)号:US20070057097A1

    公开(公告)日:2007-03-15

    申请号:US11555823

    申请日:2006-11-02

    IPC分类号: A01C15/04 A01C3/06

    摘要: Methods, processes, and apparatuses for the large scale synthesis of carbon nanostructures are provided. Metal catalysts having small diameter and narrow distribution of particle sizes are prepared and continuously injected as aerosols into a reactor. The metal catalysts are supported on supports that are substantially free of carbon. The metal catalyst, in the form of a powder, is placed in an injector that is shaken vertically. The powder is aerosolized, and the powder entrailed in the gas is passed through a conduit that is bifurcated where one portion delivers the powder to the reactor while the other portion connects back to the ejector that is located in between the gas source and the top part of the container.

    摘要翻译: 提供了大规模合成碳纳米结构的方法,工艺和装置。 制备具有小直径和窄粒度分布的金属催化剂,并将其作为气溶胶连续注入反应器。 金属催化剂负载在基本上不含碳的载体上。 以粉末形式的金属催化剂放置在垂直摇动的注射器中。 粉末被雾化,并且包含在气体中的粉末通过分叉的管道,其中一部分将粉末输送到反应器,而另一部分连接回位于气体源和顶部之间的喷射器 的容器。

    Methods for preparation of one-dimensional carbon nanostructures
    43.
    发明授权
    Methods for preparation of one-dimensional carbon nanostructures 有权
    制备一维碳纳米结构的方法

    公开(公告)号:US08541054B2

    公开(公告)日:2013-09-24

    申请号:US10658711

    申请日:2003-09-08

    IPC分类号: C23C16/00

    摘要: A method for synthesizing carbon nanostructures is provided. A metalorganic layer is deposited on a substrate that has a deposition mask. The mask is removed, which also removes the portion of the metalorganic precursor deposited on the mask. The remaining portions of the metal organic layer are oxidized to produce a metal growth catalyst on the substrate that can be used for synthesis of carbon nanostructures.

    摘要翻译: 提供了一种合成碳纳米结构的方法。 金属有机层沉积在具有沉积掩模的基底上。 去除掩模,这也去除了沉积在掩模上的金属有机前体的部分。 金属有机层的剩余部分被氧化,以在可用于合成碳纳米结构的基底上产生金属生长催化剂。

    Carbon single-walled nanotubes as electrodes for electrochromic glasses
    44.
    发明授权
    Carbon single-walled nanotubes as electrodes for electrochromic glasses 有权
    碳单壁纳米管作为电致变色玻璃的电极

    公开(公告)号:US07867616B2

    公开(公告)日:2011-01-11

    申请号:US11155801

    申请日:2005-06-17

    IPC分类号: B32B9/00

    摘要: Electrochromic (EC) glass having carbon single-walled nanotubes as the electrodes (SWNTs) is disclosed. Methods and processes for preparing EC glass having SWNTs are also disclosed. The SWNTs, synthesized by any one of the art methods, are deposited on the glass to provide a transparent and electrically conductive substrate for use in EC glass.

    摘要翻译: 公开了具有碳单壁纳米管作为电极(SWNT)的电致变色(EC)玻璃。 还公开了制备具有SWNT的EC玻璃的方法和方法。 通过任何一种本领域方法合成的SWNT沉积在玻璃上,以提供用于EC玻璃的透明导电基材。

    MAGNETIC NANOTRANSISTOR
    46.
    发明申请
    MAGNETIC NANOTRANSISTOR 有权
    磁性纳米粒子

    公开(公告)号:US20100283090A1

    公开(公告)日:2010-11-11

    申请号:US12463557

    申请日:2009-05-11

    IPC分类号: H01L27/20

    摘要: The present invention discloses methods and processes for producing magnetic nanotransistors containing carbon nanotubes. The nanotube is attached to at least one magnetic particle, the nanotube is then placed in between the two fixed magnetic moments, and subjected to an external magnetic field. The current passing through the nanotube can be controlled using the external magnetic field.

    摘要翻译: 本发明公开了制造含有碳纳米管的磁性纳米晶体管的方法和方法。 纳米管附着在至少一个磁性颗粒上,然后将纳米管置于两个固定的磁矩之间,并进行外部磁场。 可以使用外部磁场来控制通过纳米管的电流。

    Method of purifying nanotubes and nanofibers using electromagnetic radiation

    公开(公告)号:US07014737B2

    公开(公告)日:2006-03-21

    申请号:US10174477

    申请日:2002-06-17

    IPC分类号: D01F9/12

    摘要: Disclosed are methods of purifying mixtures comprising nanofibers and/or nanotubes and residual catalyst particles that are covered by outer layers of the nanotube or nanofiber material. The mixtures are exposed to electromagnetic radiation, which induces localized heating in the residual catalyst particles. The localized heating creates breaches in the outer layers. Thereafter, the residual catalyst particles may be removed under relatively mild conditions that do not significantly affect the structural integrity of the nanotubes or nanofibers. The methods of the invention have been used to particular advantage in the purification of single wall carbon nanotubes (SWNTs) synthesized using metal catalysts. For these SWNTs, microwave radiation is preferably used to induce the localized heating, the outer layers are preferably removed at least in part by carrying out the localized heating under air, and the residual catalyst may be removed by exposure to relatively dilute aqueous acid.

    Dry powder injector
    50.
    发明授权
    Dry powder injector 有权
    干粉注射器

    公开(公告)号:US08550752B2

    公开(公告)日:2013-10-08

    申请号:US11555823

    申请日:2006-11-02

    IPC分类号: B65G53/38

    摘要: Methods, processes, and apparatuses for the large scale synthesis of carbon nanostructures are provided. Metal catalysts having small diameter and narrow distribution of particle sizes are prepared and continuously injected as aerosols into a reactor. The metal catalysts are supported on supports that are substantially free of carbon. The metal catalyst, in the form of a powder, is placed in an injector that is shaken vertically. The powder is aerosolized, and the powder entrailed in the gas is passed through a conduit that is bifurcated where one portion delivers the powder to the reactor while the other portion connects back to the ejector that is located in between the gas source and the top part of the container.

    摘要翻译: 提供了大规模合成碳纳米结构的方法,工艺和装置。 制备具有小直径和窄粒度分布的金属催化剂,并将其作为气溶胶连续注入反应器。 金属催化剂负载在基本上不含碳的载体上。 以粉末形式的金属催化剂放置在垂直摇动的注射器中。 粉末被雾化,并且包含在气体中的粉末通过分叉的管道,其中一部分将粉末输送到反应器,而另一部分连接回位于气体源和顶部之间的喷射器 的容器。