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    Synthesis of high quality carbon single-walled nanotubes
    1.
    发明授权
    Synthesis of high quality carbon single-walled nanotubes 有权
    合成高品质碳单壁纳米管

    公开(公告)号：US09174847B2

    公开(公告)日：2015-11-03

    申请号：US12113819

    申请日：2008-05-01

    申请人： Avetik R. Harutyunyan ,  Oleg Kuznetsov

    发明人： Avetik R. Harutyunyan ,  Oleg Kuznetsov

    IPC分类号： D01C5/00 ,  D01F9/12 ,  C01B31/02 ,  B82Y30/00 ,  B82Y40/00

    CPC分类号： C01B32/159 ,  B82Y30/00 ,  B82Y40/00 ,  C01B32/162 ,  C01B2202/02 ,  C23C16/26

    摘要： Methods and processes for synthesizing high quality carbon single-walled nanotubes (SWNTs) are provided. A carbon precursor gas at reduced concentration (pressure) is contacted with a catalyst deposited on a support and at temperature about 10° C. above the SWNT synthesis onset temperature, but below the thermal decomposition temperature of the carbon precursor gas for given growth conditions. The concentration (pressure) of the carbon precursor gas can be controlled by reducing the total pressure of the gas, or by diluting with an inert carrier gas, or both. The methods produce SWNTs with the ratio of G-band to D-band in Raman spectra (IG:ID) of about 5 to about 200.

    摘要翻译： 提供了合成高品质碳单壁纳米管（SWNT）的方法和工艺。 将降低浓度（压力）的碳前驱体气体与沉积在载体上的催化剂和高于SWNT合成起始温度约10℃的催化剂接触，但低于用于给定生长条件的碳前体气体的热分解温度。 碳前体气体的浓度（压力）可以通过降低气体的总压力，或通过用惰性载气稀释或两者来控制。 该方法产生具有约5至约200的拉曼光谱（IG：ID）中的G带与D带的比率的SWNT。

    System and method for broad-area synthesis of aligned and densely-packed carbon nanotubes
    3.
    发明授权
    System and method for broad-area synthesis of aligned and densely-packed carbon nanotubes 有权
    用于对准且密集填充的碳纳米管的广泛合成的系统和方法

    公开(公告)号：US08906335B2

    公开(公告)日：2014-12-09

    申请号：US12129104

    申请日：2008-05-29

    申请人： Keith A. Slinker

    发明人： Keith A. Slinker

    IPC分类号： B01J19/08 ,  D01F9/12 ,  D01C5/00 ,  C01B31/02 ,  B82Y30/00 ,  B82Y40/00

    CPC分类号： C01B31/0226 ,  B82Y30/00 ,  B82Y40/00 ,  C01B32/15 ,  C01B32/158 ,  C01B32/16 ,  C01B32/168 ,  C01B2202/08 ,  Y10S977/742 ,  Y10S977/843

    摘要： Broad-area synthesis of aligned and densely-packed carbon nanotubes (CNT) is disclosed. CNT are repeatedly synthesized and then drawn together to locally and globally achieve increased packing densities. The process synthesizes an aligned, relatively sparse forest of CNT on a catalyzed sacrificial substrate. The catalyst is removed, thereby releasing the CNT but leaving them in place on the substrate. A liquid-induced collapse produces regions of more densely packed CNT and regions where no CNT remain. A fresh catalyst is deposited on the exposed regions of the substrate and a sparse forest of aligned CNT is regrown in these regions. The CNT also may form on the tops of the densified regions of CNT. The top-growth CNT may be removed or incorporated into the solid such that the solid is expanded axially. This process, e.g., growth then densification, is repeated to form a near-continuous solid of aligned and densely packed CNT.

    摘要翻译： 公开了对准和密集填充的碳纳米管（CNT）的广域合成。 CNT被重复合成，然后一起拉到一起局部并且全局地实现增加的包装密度。 该方法在催化的牺牲衬底上合成对齐的相对稀疏的CNT的森林。 除去催化剂，从而释放CNT，但将其留在基材上就位。 液体引起的塌陷产生更密集的CNT和不存在CNT的区域。 将新鲜的催化剂沉积在基材的暴露区域上，并且在这些区域中重新生长对准的CNT的稀疏森林。 CNT也可以形成在CNT的致密区域的顶部。 可以将顶部生长的CNT去除或并入固体中，使得固体轴向膨胀。 重复该过程，例如生长然后致密化，以形成对齐且密集填充的CNT的近乎连续的固体。

    Catalyst structure and method of manufacturing carbon nanotube using the same
    4.
    发明授权
    Catalyst structure and method of manufacturing carbon nanotube using the same 有权
    催化剂结构及其制造方法

    公开(公告)号：US08592338B2

    公开(公告)日：2013-11-26

    申请号：US10590011

    申请日：2004-12-27

    申请人： Takeshi Hikata

    发明人： Takeshi Hikata

    IPC分类号： B01J23/00 ,  D01C5/00

    CPC分类号： B82Y40/00 ,  B01J23/75 ,  B01J23/8906 ,  B01J23/8913 ,  B01J35/06 ,  B01J37/00 ,  B01J37/06 ,  B82Y30/00 ,  C01B32/162

    摘要： A catalyst structure that allows a carbon nanotube having a desired shape and with larger length to be obtained in a stable manner and in high purity as well as a method of manufacturing a carbon nanotube using the same are provided. The present invention relates to a catalyst structure for use in manufacturing a carbon nanotube by means of vapor deposition of crystalline carbon, having a catalytic material that forms a ring or a whirl on its crystal growth surface, and further relates to a method of manufacturing a carbon nanotube using the same. Preferably, the catalyst structure is a columnar body with its upper surface serving as the crystal growth surface, where at least part of the side of the columnar body has a non-catalytic material that has substantially no catalytic activity with respect to the growth of the crystalline carbon.

    摘要翻译： 提供能够以稳定且高纯度获得具有所需形状和长度的碳纳米管的催化剂结构以及使用其制造碳纳米管的方法。 本发明涉及一种用于通过气相沉积结晶碳制造碳纳米管的催化剂结构，其具有在其晶体生长表面上形成环或旋转的催化材料，还涉及一种制造方法 碳纳米管。 优选地，催化剂结构是其上表面用作晶体生长表面的柱状体，其中柱状体的至少一部分侧面具有非催化材料，其相对于 结晶碳。

    Methods and compositions for the separation of single-walled carbon nanotubes
    5.
    发明授权
    Methods and compositions for the separation of single-walled carbon nanotubes 有权
    用于分离单壁碳纳米管的方法和组合物

    公开(公告)号：US08580223B2

    公开(公告)日：2013-11-12

    申请号：US13552417

    申请日：2012-07-18

    申请人： Chintamani Nagesa Ramachandra Rao ,  Subi Jacob George ,  Rakesh Voggu ,  Kotagiri Venkata Rao

    发明人： Chintamani Nagesa Ramachandra Rao ,  Subi Jacob George ,  Rakesh Voggu ,  Kotagiri Venkata Rao

    IPC分类号： C09C1/56 ,  D01F9/12 ,  D01C5/00 ,  B01J19/08 ,  B03B5/00 ,  B07B9/00

    CPC分类号： C09C1/56 ,  B82Y30/00 ,  B82Y40/00 ,  C01B32/172 ,  C01B2202/02 ,  C01B2202/10 ,  C01B2202/22 ,  C01P2002/82 ,  C01P2004/03 ,  C01P2004/13 ,  C01P2006/40 ,  C09C1/48

    摘要： Embodiments herein describe a composition including at least one water-soluble complex having a water-soluble separation agent including a planar portion, at least one pi electron on the planar portion and at least one electron withdrawing group; and a semiconducting single-walled carbon nanotube in an aqueous solution. Further embodiments describe a method of separating metallic single-walled carbon nanotubes and semiconducting single-walled carbon nanotubes including providing carbon nanotubes having an admixture of semiconducting single-walled carbon nanotubes and metallic single-walled carbon nanotubes; and combining the admixture with a water-soluble separation agent in an aqueous solution to form a mixture, in which the water-soluble separation agent includes a planar portion, at least one pi electron on the planar portion and at least one electron withdrawing group.

    摘要翻译： 本文的实施方案描述了包含至少一种具有水溶性分离剂的水溶性络合物的组合物，所述水溶性络合物包含平面部分，平面部分上至少一个π电子和至少一个吸电子基团; 和在水溶液中的半导体单壁碳纳米管。 另外的实施方案描述了分离金属单壁碳纳米管和半导体单壁碳纳米管的方法，其包括提供具有半导体单壁碳纳米管和金属单壁碳纳米管的混合物的碳纳米管; 并将所述混合物与水溶性分离剂在水溶液中混合以形成其中水溶性分离剂包括平面部分，平面部分上的至少一个π电子和至少一个吸电子基团的混合物。

    Method of liquid phase synthesis of carbon nanotubes in air
    6.
    发明授权
    Method of liquid phase synthesis of carbon nanotubes in air 有权
    空气中碳纳米管的液相合成方法

    公开(公告)号：US08470285B1

    公开(公告)日：2013-06-25

    申请号：US13439055

    申请日：2012-04-04

    申请人： Ryan P. Lu ,  Christopher K. Huynh ,  Ayax D. Rammirez ,  Debjyoti Banerjee

    发明人： Ryan P. Lu ,  Christopher K. Huynh ,  Ayax D. Rammirez ,  Debjyoti Banerjee

    IPC分类号： D01C5/00

    CPC分类号： B82Y40/00 ,  B82Y30/00 ,  C01B32/166

    摘要： A method of liquid phase synthesis of carbon nanotubes in air comprising the steps of making a first liquid phase metal salt catalyst solution of a first predetermined volume; making a carbon source liquid phase solution of a second predetermined volume; ultrasonicating the first metal salt catalyst and the carbon source solutions to de-agglomerate and uniformly disperse their powder form into the solutions; depositing predetermined volumes of droplets of the first metal salt catalyst and the carbon source solutions onto a substrate; drying the first metal salt catalyst and the carbon source solutions on the substrate in an air environment for a predetermined time to form a carbon and catalyst composite; and heating the carbon and catalyst mixture in the air environment for a predetermined temperature and time to form one or more carbon nanotubes.

    摘要翻译： 一种在空气中液相合成碳纳米管的方法，包括以下步骤：制备第一预定体积的第一液相金属盐催化剂溶液; 制备第二预定体积的碳源液相溶液; 超声波化第一金属盐催化剂和碳源溶液以使其粉末形状聚集并均匀分散在溶液中; 将第一金属盐催化剂和碳源溶液的预定体积的液滴沉积到基底上; 在空气环境中将第一金属盐催化剂和碳源溶液干燥至预定时间以形成碳和催化剂复合物; 并在空气环境中将碳和催化剂混合物加热预定的温度和时间以形成一个或多个碳纳米管。

    System and method of synthesizing carbon nanotubes
    8.
    发明授权
    System and method of synthesizing carbon nanotubes 有权
    合成碳纳米管的系统和方法

    公开(公告)号：US07763231B2

    公开(公告)日：2010-07-27

    申请号：US11834210

    申请日：2007-08-06

    申请人： Slade H. Gardner

    发明人： Slade H. Gardner

    IPC分类号： D01C5/00 ,  D01F9/12 ,  D04H1/64 ,  H01J37/30 ,  H05H1/26 ,  B29C35/08 ,  H05B1/00

    CPC分类号： B82Y30/00 ,  B01J19/087 ,  B01J2219/0809 ,  B01J2219/0839 ,  B01J2219/0879 ,  B01J2219/0894 ,  B01J2219/0898 ,  B82Y40/00 ,  C01B32/162 ,  C01B32/164 ,  C01B2202/02 ,  D01F9/12 ,  Y10S977/742 ,  Y10S977/75 ,  Y10S977/773 ,  Y10S977/777

    摘要： A process for producing carbon nanotubes includes carbon plasma generation with microwave energy, plasma stabilization, and product deposition. Stabilization homogenizes the plasma energy density and concentration, leading to a more efficient reactor. A transition metal catalyst and associated catalyst support are used to form the end product. The formation region may have variations of geometry and supporting equipment that will affect the rate and purity of production. The formation region is immediately downstream from the plasma stabilization region such that the apparatus may be mounted on a robotic arm for direct deposition of product.

    摘要翻译： 制造碳纳米管的方法包括利用微波能量产生碳等离子体，等离子体稳定化和产物沉积。 稳定化使等离子体能量密度和浓度均匀化，从而形成更有效的反应器。 使用过渡金属催化剂和相关的催化剂载体来形成最终产物。 形成区域可能具有将影响生产速率和纯度的几何形状和支撑设备的变化。 形成区域紧邻等离子体稳定区域的下游，使得该装置可以安装在机器人手臂上以直接沉积产品。