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    Catalyst for the Growth of Carbon Single-Walled Nanotubes
    2.
    发明申请
    Catalyst for the Growth of Carbon Single-Walled Nanotubes 有权
    碳单壁纳米管生长催化剂

    公开(公告)号：US20070281087A1

    公开(公告)日：2007-12-06

    申请号：US11669128

    申请日：2007-01-30

    申请人： Avetik Harutyunyan ,  Toshio Tokune ,  Elena Mora

    发明人： Avetik Harutyunyan ,  Toshio Tokune ,  Elena Mora

    IPC分类号： C23C16/26

    CPC分类号： B01J35/0013 ,  B01J21/185 ,  B01J23/28 ,  B01J23/44 ,  B01J23/74 ,  B01J37/0211 ,  B01J37/343 ,  B82Y30/00 ,  B82Y40/00 ,  C01B32/162 ,  C01B2202/02 ,  Y10S977/843

    摘要： Methods and processes for synthesizing single-wall carbon nanotubes are provided. A carbon precursor gas is contacted with metal catalysts deposited on a support material. The metal catalysts are preferably nanoparticles having diameters less than about 3 nm. The reaction temperature is selected such that it is near the eutectic point of the mixture of metal catalyst particles and carbon. Further, the rate at which hydrocarbons are fed into the reactor is equivalent to the rate at which the hydrocarbons react for given synthesis temperature. The methods produce carbon single-walled nanotubes having longer lengths.

    摘要翻译： 提供了合成单壁碳纳米管的方法和方法。 碳前体气体与沉积在载体材料上的金属催化剂接触。 金属催化剂优选直径小于约3nm的纳米颗粒。 选择反应温度使其接近金属催化剂颗粒和碳的混合物的共晶点。 此外，烃进料到反应器中的速率等于烃在给定合成温度下反应的速率。 该方法产生长度较长的碳单壁碳纳米管。

    METHOD FOR SELECTIVE ENRICHMENT OF CARBON NANOTUBES
    5.
    发明申请
    METHOD FOR SELECTIVE ENRICHMENT OF CARBON NANOTUBES 有权
    选择性增加碳纳米管的方法

    公开(公告)号：US20070085460A1

    公开(公告)日：2007-04-19

    申请号：US11610476

    申请日：2006-12-13

    申请人： Avetik Harutyunyan ,  Toshio Tokune

    发明人： Avetik Harutyunyan ,  Toshio Tokune

    IPC分类号： H01J1/02

    CPC分类号： B82Y30/00 ,  B82Y40/00 ,  C01B32/168 ,  C01B2202/22 ,  D01F9/127

    摘要： A method for treating carbon nanotubes with microwave energy to selective remove metallic-type carbon nanotubes is provided. A sample containing carbon nanotubes is positioned in a microwave cavity at a location corresponding to a maximum in the electric field component of a stationary wave having a microwave frequency. The sample is exposed to the microwave energy for a sufficient period of time to increase the proportion of semiconducting-type carbon nanotubes within the sample. Alternatively, a sample consisting essentially of metallic-type and semiconducting-type carbon nanotubes is exposed to microwave energy for a sufficient period of time to increase the proportion of semiconducting-type carbon nanotubes within the sample.

    摘要翻译： 提供了一种用微波能量处理碳纳米管以选择性去除金属型碳纳米管的方法。 含有碳纳米管的样品位于与微波频率的固定波的电场分量中的最大值相对应的位置处的微波空腔中。 将样品暴露于微波能量足够长的时间以增加样品中半导体型碳纳米管的比例。 或者，基本上由金属型和半导体型碳纳米管组成的样品暴露于微波能量足够的时间以增加样品中半导体型碳纳米管的比例。

    Dry powder injector for industrial production of carbon single walled nanotubes (SWNTs)
    6.
    发明授权
    Dry powder injector for industrial production of carbon single walled nanotubes (SWNTs) 有权
    用于工业生产碳单壁纳米管（SWNT）的干粉注射器

    公开(公告)号：US08268281B2

    公开(公告)日：2012-09-18

    申请号：US11433161

    申请日：2006-05-12

    申请人： Avetik Harutyunyan ,  Toshio Tokune

    发明人： Avetik Harutyunyan ,  Toshio Tokune

    IPC分类号： D01C5/00

    CPC分类号： B01J8/1845 ,  B01J8/002 ,  B01J8/1836 ,  B01J23/745 ,  B01J35/023 ,  B01J37/0203 ,  B01J37/18 ,  B01J2208/00752 ,  B82Y30/00 ,  B82Y40/00 ,  C01B32/162 ,  C01B2202/02

    摘要： Methods, processes, and apparatuses for the continuous 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 on a fluidized bed and aerosolized using an inert gas. The powder entrailed in the gas is injected near the top of a vertical reactor for the synthesis of SWNTs.

    摘要翻译： 提供了用于连续合成碳纳米结构的方法，方法和装置。 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。 将粉末形式的金属催化剂置于流化床上并使用惰性气体雾化。 在气体中夹带的粉末被注入到用于合成SWNTs的垂直反应器的顶部附近。

    Method for synthesis of carbon nanotubes
    9.
    发明授权
    Method for synthesis of carbon nanotubes 有权
    合成碳纳米管的方法

    公开(公告)号：US07214361B2

    公开(公告)日：2007-05-08

    申请号：US10304317

    申请日：2002-11-26

    申请人： Avetik Harutyunyan ,  Leonid Grigorian ,  Toshio Tokune

    发明人： Avetik Harutyunyan ,  Leonid Grigorian ,  Toshio Tokune

    IPC分类号： C01B31/02

    CPC分类号： B82Y30/00 ,  C01B32/16 ,  D01F9/1272 ,  Y10S977/842 ,  Y10S977/891

    摘要： Carbon nanotubes are formed by chemical vapor deposition using metal nanoparticles as a growth substrate. Control over the size and properties of the carbon nanotubes is achieved by controlling the size of the metal nanoparticles in the growth substrate. The metal nanoparticles of a controlled size may be formed by a thermal decomposition reaction of a metal salt in a passivating solvent.

    摘要翻译： 通过使用金属纳米颗粒作为生长衬底的化学气相沉积形成碳纳米管。 通过控制生长衬底中的金属纳米颗粒的尺寸来实现碳纳米管的尺寸和性质的控制。 受控尺寸的金属纳米颗粒可以通过金属盐在钝化溶剂中的热分解反应形成。

    Methods for measuring carbon single-walled nanotube content of carbon soot
    10.
    发明申请
    Methods for measuring carbon single-walled nanotube content of carbon soot 审中-公开
    碳烟炭碳单壁碳纳米管含量测定方法

    公开(公告)号：US20060223191A1

    公开(公告)日：2006-10-05

    申请号：US11099727

    申请日：2005-04-05

    申请人： Avetik Harutyunyan ,  Toshio Tokune

    发明人： Avetik Harutyunyan ,  Toshio Tokune

    IPC分类号： G01N24/00

    CPC分类号： G01N24/08 ,  Y10T436/24

    摘要： Methods and processes for quantitating the carbon single-walled nanotubes (SWNTs) content in a sample are disclosed. The SWNTs soot can be produced by any of the known methods. The magic angle spinning (MAS) 13C NMR of a sample suspected of containing SWNTs and a standard at a known concentration are obtained, and the areas under the curve for the sample and the standard are calculated. Thereby, the concentration of 13C atoms involved in the formation of carbon SWNTs are calculated. Finally, by taking into account the natural distribution of 13C isotopes (about 1.1%), the total concentration of all carbon atoms responsible for the formation of SWNTs are calculated.

    摘要翻译： 公开了用于定量样品中的碳单壁纳米管（SWNT）含量的方法和方法。 SWNTs烟灰可以通过任何已知的方法生产。 获得怀疑含有SWNT的样品和已知浓度的标准品的魔角旋转（MAS）13 C NMR，并计算样品曲线下的面积和标准。 因此，计算参与形成碳SWNT的<13 C原子的浓度。 最后，通过考虑到13C同位素的天然分布（约1.1％），计算负责形成SWNT的全部碳原子的总浓度。