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    Catalyst For The Growth Of Carbon Single-Walled Nanotubes
    1.
    发明申请
    Catalyst For The Growth Of Carbon Single-Walled Nanotubes 审中-公开
    用于碳单壁纳米管生长的催化剂

    公开(公告)号：US20120237436A1

    公开(公告)日：2012-09-20

    申请号：US13429309

    申请日：2012-03-23

    申请人： Avetik R. Harutyunyan ,  Toshio Tokune ,  Elena Mora

    发明人： Avetik R. Harutyunyan ,  Toshio Tokune ,  Elena Mora

    IPC分类号： D01F9/127 ,  B82Y40/00 ,  B82Y30/00

    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。

    Catalyst for the growth of carbon single-walled nanotubes
    2.
    发明授权
    Catalyst for the growth of carbon single-walled nanotubes 有权
    用于生长碳单壁纳米管的催化剂

    公开(公告)号：US08163263B2

    公开(公告)日：2012-04-24

    申请号：US11669128

    申请日：2007-01-30

    申请人： Avetik R. Harutyunyan ,  Toshio Tokune ,  Elena Mora

    发明人： Avetik R. Harutyunyan ,  Toshio Tokune ,  Elena Mora

    IPC分类号： D01F9/12

    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。

    Effect of hydrocarbon and transport gas feedstock on efficiency and quality of grown single-walled nanotubes
    4.
    发明授权
    Effect of hydrocarbon and transport gas feedstock on efficiency and quality of grown single-walled nanotubes 有权
    碳氢化合物和运输气体原料对生长的单壁纳米管的效率和质量的影响

    公开(公告)号：US08591858B2

    公开(公告)日：2013-11-26

    申请号：US12113814

    申请日：2008-05-01

    申请人： Avetik R. Harutyunyan ,  Elena Mora

    发明人： Avetik R. Harutyunyan ,  Elena Mora

    IPC分类号： C01B31/02 ,  D01C5/00 ,  D01F9/12 ,  B01J19/08 ,  C09C1/56 ,  B32B9/00 ,  B32B17/08

    CPC分类号： D01F9/127 ,  B82Y30/00 ,  D01F9/1272 ,  D01F9/133

    摘要： Methods and processes for synthesizing high quality carbon single-walled nanotubes (SWNTs) are provided. The method provides the means for optimization of amount of carbon precursor and transport gas per unit weight of catalyst. In certain aspects, methods are provided wherein a supported metal catalyst is contacted with a carbon precursor gas at about one atmosphere pressure, wherein SWNTs are synthesized at a growth rate of about 0.002 μm/sec to about 0.003 μm/sec and the SWNTs have a ratio of G-band to D-band in Raman spectra (IG:ID) of greater than about 4. Efficiencies of about 20% can be achieved when contacting the catalyst deposited on a support with a carbon precursor gas with a flow rates of about 4.2×10−3 mol CH4/sec·g (Fe) at 780° C. Hydrocarbon flow rates of about 1.7 10−2 mol CH4/sec·g (Fe) and higher result in faster carbon SWNTs growth with improved quality. Slower rates of carbon atoms supply (˜4.5×1020 C atoms/s·g Fe or 6.4×10−4 mol CH4/sec·g (Fe)) result in the formation of more defective nanotubes.

    摘要翻译： 提供了合成高质量碳单壁纳米管（SWNT）的方法和工艺。 该方法提供了用于优化碳前体和每单位重量催化剂的运输气体的量的方法。 在某些方面，提供了一种方法，其中负载金属催化剂在大约一个大气压下与碳前体气体接触，其中以约0.002mum / sec至约0.003mum / sec的生长速率合成SWNT，并且SWNT具有 将拉伸光谱中的G带与D带的比例（IG：ID）大于约4.当将沉积在载体上的催化剂与碳前体气体接触，流速约为约20％时，可实现约20％的效率 4.2×10-3 mol CH4 / sec·g（Fe）在780°C。烃流量约为1.7×10-2 mol CH4 / sec·g（Fe）和更高，导致更快的碳SWNTs生长，质量提高。 碳原子供应速度较慢（〜4.5×1020 C原子/ s·g Fe或6.4×10-4 mol CH4 / sec·g（Fe））导致形成更多缺陷的纳米管。

    Effect Of Hydrocarbon And Transport Gas Feedstock On Efficiency And Quality Of Grown Single-Walled Nanotubes
    6.
    发明申请
    Effect Of Hydrocarbon And Transport Gas Feedstock On Efficiency And Quality Of Grown Single-Walled Nanotubes 有权
    烃和运输气体原料对生长单壁纳米管的效率和质量的影响

    公开(公告)号：US20090324484A1

    公开(公告)日：2009-12-31

    申请号：US12113814

    申请日：2008-05-01

    申请人： Avetik R. Harutyunyan ,  Elena Mora

    发明人： Avetik R. Harutyunyan ,  Elena Mora

    IPC分类号： D01F9/12

    CPC分类号： D01F9/127 ,  B82Y30/00 ,  D01F9/1272 ,  D01F9/133

    摘要： Methods and processes for synthesizing high quality carbon single-walled nanotubes (SWNTs) are provided. The method provides the means for optimization of amount of carbon precursor and transport gas per unit weight of catalyst. Efficiencies of about 20% can be achieved when contacting the catalyst deposited on a support with a carbon precursor gas with a flow rates of about 4.2×10−3 mol CH4/sec·g (Fe) at 780 ° C. Hydrocarbon flow rates of about 1.7 10−2 mol CH4/sec·g (Fe) and higher result in faster carbon SWNTs growth with improved quality. Slower rates of carbon atoms supply (˜4.5×1020 C atoms/s·g Fe or 6.4×10−4 mol CH4/sec·g (Fe)) result in the formation of more defective nanotubes.

    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。 该方法提供了用于优化碳前体和每单位重量催化剂的运输气体的量的方法。 当沉积在载体上的催化剂与碳前体气体接触时，在780℃下流速约为4.2×10-3 mol CH4 / sec.g（Fe），可以实现约20％的效率。 1.7 10-2 mol CH4 / sec.g（Fe）和更高的速度导致更快的碳SWNTs生长，质量提高。 碳原子供应速度越来越慢（约4.5x1020 C原子/秒，Fe或6.4×10-4摩尔CH4 / sec.g（Fe））导致形成更多的有缺陷的纳米管。

    Method and Apparatus for Growth of High Quality Carbon Single-Walled Nanotubes
    7.
    发明申请
    Method and Apparatus for Growth of High Quality Carbon Single-Walled Nanotubes 审中-公开
    高品质碳单壁纳米管生长方法与装置

    公开(公告)号：US20080279753A1

    公开(公告)日：2008-11-13

    申请号：US11669124

    申请日：2007-01-30

    申请人： Avetik R. Harutyunyan

    发明人： Avetik R. Harutyunyan

    IPC分类号： D01F9/12

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

    摘要： Method and processes for synthesizing single-wall carbon nanotubes is 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 50 nm. The reaction temperature is selected such that it is near the eutectic point of the mixture of metal catalyst particles and carbon.

    摘要翻译： 提供了合成单壁碳纳米管的方法和工艺。 碳前体气体与沉积在载体材料上的金属催化剂接触。 金属催化剂优选具有小于约50nm直径的纳米颗粒。 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。

    Injector for large amount of aerosol powder for synthesis of carbon nanotubes
    8.
    发明授权
    Injector for large amount of aerosol powder for synthesis of carbon nanotubes 有权
    喷射器用于合成碳纳米管的大量气溶胶粉末

    公开(公告)号：US08684284B2

    公开(公告)日：2014-04-01

    申请号：US11945152

    申请日：2007-11-26

    申请人： Avetik R. Harutyunyan

    发明人： Avetik R. Harutyunyan

    IPC分类号： F02M47/02 ,  B05B9/00 ,  B05B7/04 ,  B05B1/34

    CPC分类号： B05B1/3436 ,  B01J8/14 ,  B01J8/40 ,  B05B1/3405 ,  B05B1/341 ,  B05B1/3421 ,  B05B1/3426 ,  B82Y30/00 ,  B82Y40/00 ,  C01B32/162 ,  C01B2202/02 ,  C01B2202/30 ,  C01B2202/36 ,  Y10T137/0318 ,  Y10T137/4891

    摘要： Methods, processes, and apparatuses for the large scale synthesis of carbon nanostructures are provided. The apparatus for continuous large scale production of SWNTs includes a chamber. Positioned in one end of the chamber is a piston and at the other end is a tangential vortex created by gases forced into the chamber from opposite sides of the chamber walls. The chamber can be heated to reduce or eliminate agglomeration of small particles. The piston is used to push the catalyst towards the vortex, and the injection rate is controlled by the speed of the piston and the gas flow rate to create the vortex that also act as the transport gas. Thus, greater than 1 kg/h of an aerosolized, deagglomerated dry powder catalyst can be delivered to the reactor at a constant flow rate.

    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。 用于连续大规模生产SWNT的设备包括一个室。 定位在室的一端是活塞，另一端是由室壁的相对侧被迫进入室的气体产生的切向涡流。 可以加热室以减少或消除小颗粒的聚集。 活塞用于将催化剂推向涡流，并且喷射速率由活塞的速度和气体流速控制，以产生也用作输送气体的涡流。 因此，大于1kg / h的雾化的解团聚干粉催化剂可以以恒定的流速输送到反应器中。

    Synthesis Of High Quality Carbon Single-Walled Nanotubes
    9.
    发明申请
    Synthesis Of High Quality Carbon Single-Walled Nanotubes 有权
    高品质碳单壁纳米管的合成

    公开(公告)号：US20090274609A1

    公开(公告)日：2009-11-05

    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： C01B31/02

    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。

    QUANTITATIVE CHARACTERIZATION OF METALLIC AND SEMICONDUCTOR SINGLE-WALLED CARBON NANOTUBE RATIOS
    10.
    发明申请
    QUANTITATIVE CHARACTERIZATION OF METALLIC AND SEMICONDUCTOR SINGLE-WALLED CARBON NANOTUBE RATIOS 有权
    金属和半导体单壁碳纳米管比率的定量表征

    公开(公告)号：US20130180018A1

    公开(公告)日：2013-07-11

    申请号：US12846599

    申请日：2010-07-29

    申请人： Avetik R. Harutyunyan ,  Oleg Kuznetsov

    发明人： Avetik R. Harutyunyan ,  Oleg Kuznetsov

    IPC分类号： G01Q30/02

    CPC分类号： G01Q30/02 ,  B82Y35/00 ,  C01B32/16 ,  C01B32/172 ,  D01F11/14 ,  G01N21/6489 ,  Y10S977/842 ,  Y10S977/854 ,  Y10T436/23

    摘要： Methods and processes for quantitatively determining the ratio of the metallic to semiconductor tubes in the sample single-wall carbon nanotubes is provided. The single-walled carbon nanotubes can be sonicated to debundle the bulk material. The debundled SWNTs can be coated with a polymer, such as sulfonated polystyrene-block-poly(ethylene-ran-butylene)-block-polystyrene (SDPS), and the coated SWNTs can be deposited on a substrate. The total number of tubes can be determined by atomic force microscopy (AFM). The semiconducting nanotubes can be determined by photoluminescence spectroscopy. The combination of photoluminescence and AFM measurements provides a quantitative ratio of the metallic to semiconductor tubes in the sample.

    摘要翻译： 提供了用于定量确定样品单壁碳纳米管中金属与半导体管的比例的方法和方法。 单壁碳纳米管可被超声处理以使散装材料脱落。 分解的SWNT可以用聚合物，例如磺化聚苯乙烯嵌段聚（乙烯 - 丁烯） - 嵌段 - 聚苯乙烯（SDPS））涂覆，并且涂覆的SWNT可以沉积在基材上。 管的总数可以通过原子力显微镜（AFM）来确定。 半导体纳米管可以通过光致发光光谱测定。 光致发光和AFM测量的组合提供了样品中金属对半导体管的定量比。