利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

11 条记录 (耗时 0.024 秒)

    Carbon Nanotube Particulates, Compositions and Use Thereof
    1.
    发明申请
    Carbon Nanotube Particulates, Compositions and Use Thereof 有权
    碳纳米管颗粒，组成和用途

    公开(公告)号：US20100254886A1

    公开(公告)日：2010-10-07

    申请号：US11531730

    申请日：2006-09-14

    申请人： Kenneth O. McElrath ,  Yuemei Yang ,  Kenneth A. Smith ,  Xiaodong Hu

    发明人： Kenneth O. McElrath ,  Yuemei Yang ,  Kenneth A. Smith ,  Xiaodong Hu

    IPC分类号： D01F9/12

    CPC分类号： B82Y30/00 ,  B01J23/881 ,  B01J23/8872 ,  B01J35/0026 ,  B01J35/023 ,  B82Y10/00 ,  B82Y40/00 ,  C01B32/162 ,  C01B32/168 ,  C01B2202/02 ,  C01B2202/04 ,  C01B2202/06 ,  C01B2202/34 ,  C01B2202/36 ,  C23C16/26 ,  C23C16/4417 ,  H01J1/3048 ,  H01J9/025 ,  H01J29/481 ,  H01J2201/30469 ,  Y10S977/752

    摘要： A method for making carbon nanotube particulates involves providing a catalyst comprising catalytic metals, such as iron and molybdenum or metals from Group VIB or Group VIIIB elements, on a support material, such as magnesia, and contacting the catalyst with a gaseous carbon-containing feedstock, such as methane, at a sufficient temperature and for a sufficient contact time to make small-diameter carbon nanotubes having one or more walls and outer wall diameters of less than about 3 nm. Removal of the support material from the carbon nanotubes yields particulates of enmeshed carbon nanotubes that retain an approximate three-dimensional shape and size of the particulate support that was removed. The carbon nanotube particulates can comprise ropes of carbon nanotubes. The carbon nanotube particulates disperse well in polymers and show high conductivity in polymers at low loadings. As electrical emitters, the carbon nanotube particulates exhibit very low “turn on” emission field.

    摘要翻译： 制造碳纳米管微粒的方法涉及提供催化剂，该催化剂包括催化金属如铁和钼或来自VIB族或VIIIB族元素的金属，在载体材料如氧化镁上，并使催化剂与气态含碳原料接触 ，例如甲烷，在足够的温度下和足够的接触时间来制备具有一个或多个壁和外壁直径小于约3nm的小直径碳纳米管。 从碳纳米管去除载体材料产生嵌入的碳纳米管的颗粒，其保留被除去的颗粒载体的近似三维形状和尺寸。 碳纳米管颗粒可以包括碳纳米管的绳索。 碳纳米管颗粒分散在聚合物中，并且在低负载下在聚合物中显示高导电性。 作为电发射体，碳纳米管微粒表现出非常低的“导通”发射场。

    Carbon nanotube particulates, compositions and use thereof
    2.
    发明授权
    Carbon nanotube particulates, compositions and use thereof 有权
    碳纳米管颗粒，组合物及其用途

    公开(公告)号：US07811542B1

    公开(公告)日：2010-10-12

    申请号：US11531730

    申请日：2006-09-14

    申请人： Kenneth O. McElrath ,  Yuemei Yang ,  Kenneth A. Smith ,  Xiaodong Hu

    发明人： Kenneth O. McElrath ,  Yuemei Yang ,  Kenneth A. Smith ,  Xiaodong Hu

    IPC分类号： D01F9/12 ,  B82B1/00

    CPC分类号： B82Y30/00 ,  B01J23/881 ,  B01J23/8872 ,  B01J35/0026 ,  B01J35/023 ,  B82Y10/00 ,  B82Y40/00 ,  C01B32/162 ,  C01B32/168 ,  C01B2202/02 ,  C01B2202/04 ,  C01B2202/06 ,  C01B2202/34 ,  C01B2202/36 ,  C23C16/26 ,  C23C16/4417 ,  H01J1/3048 ,  H01J9/025 ,  H01J29/481 ,  H01J2201/30469 ,  Y10S977/752

    摘要： A method for making carbon nanotube particulates involves providing a catalyst comprising catalytic metals, such as iron and molybdenum or metals from Group VIB or Group VIIIB elements, on a support material, such as magnesia, and contacting the catalyst with a gaseous carbon-containing feedstock, such as methane, at a sufficient temperature and for a sufficient contact time to make small-diameter carbon nanotubes having one or more walls and outer wall diameters of less than about 3 nm. Removal of the support material from the carbon nanotubes yields particulates of enmeshed carbon nanotubes that retain an approximate three-dimensional shape and size of the particulate support that was removed. The carbon nanotube particulates can comprise ropes of carbon nanotubes. The carbon nanotube particulates disperse well in polymers and show high conductivity in polymers at low loadings. As electrical emitters, the carbon nanotube particulates exhibit very low “turn on” emission field.

    摘要翻译： 制造碳纳米管颗粒的方法涉及提供催化剂，其包含催化金属如铁和钼或VIB族或VIIIB族元素的金属，在载体材料如氧化镁上，并使催化剂与气态含碳原料接触 ，例如甲烷，在足够的温度下和足够的接触时间来制备具有一个或多个壁和外壁直径小于约3nm的小直径碳纳米管。 从碳纳米管去除载体材料产生嵌入的碳纳米管的颗粒，其保留被除去的颗粒载体的近似三维形状和尺寸。 碳纳米管颗粒可以包括碳纳米管的绳索。 碳纳米管颗粒分散在聚合物中，并且在低负载下在聚合物中显示高导电性。 作为电发射体，碳纳米管微粒表现出非常低的“导通”发射场。

    Method for making single-wall carbon nanotubes using supported catalysts
    6.
    发明授权
    Method for making single-wall carbon nanotubes using supported catalysts 有权
    使用负载催化剂制备单壁碳纳米管的方法

    公开(公告)号：US07250148B2

    公开(公告)日：2007-07-31

    申请号：US10630054

    申请日：2003-07-30

    申请人： Yuemei Yang ,  Martin P. Grosboll ,  Kenneth A. Smith

    发明人： Yuemei Yang ,  Martin P. Grosboll ,  Kenneth A. Smith

    IPC分类号： D01F9/12

    CPC分类号： B82Y40/00 ,  B82Y30/00 ,  C01B32/162 ,  C01B2202/02 ,  Y10S977/843

    摘要： A method for growing single-wall carbon nanotubes involves preparing a catalyst comprising catalytic metals, iron and molybdenum, and magnesium oxide support material and contacting the catalyst with a gaseous carbon-containing feedstock at a sufficient temperature and for a sufficient contact time to make single-wall carbon nanotubes. The weight ratio of iron and molybdenum can range from about 2 to 1 to about 10 to 1 and the metals loading up to about 10 wt % of the MgO. The catalyst can be sulfided. Methane is a suitable carbon-containing feedstock. The process can be conducted in batch, continuous or semi-continuous modes, in reactors, such as a transport reactor, fluidized bed reactor, moving bed reactors and combinations thereof. The process also includes making single-wall carbon nanotubes with catalysts comprising at least one Group VIB or Group VIIIB metal on supports such as magnesia, zirconia, silica, and alumina, where the catalyst is sulfided.

    摘要翻译： 用于生长单壁碳纳米管的方法包括制备包含催化金属，铁和钼以及氧化镁载体材料的催化剂，并将催化剂与含气态的原料在足够的温度下接触，并使其具有足够的接触时间 - 壁碳纳米管。 铁和钼的重量比可以在约2至1至约10至1的范围内，并且金属负载量高达MgO的约10重量％。 催化剂可以被硫化。 甲烷是合适的含碳原料。 该方法可以在反应器，例如运输反应器，流化床反应器，移动床反应器及其组合中以分批，连续或半连续模式进行。 该方法还包括制备具有至少一种VIB族或VIIIB族金属的催化剂的单壁碳纳米管，其载体如氧化镁，氧化锆，二氧化硅和氧化铝，其中催化剂被硫化。

    Method for making single-wall carbon nanotubes using supported catalysts
    7.
    发明申请
    Method for making single-wall carbon nanotubes using supported catalysts 有权
    使用负载催化剂制备单壁碳纳米管的方法

    公开(公告)号：US20050074392A1

    公开(公告)日：2005-04-07

    申请号：US10630054

    申请日：2003-07-30

    申请人： Yuemei Yang ,  Martin Grosboll ,  Kenneth Smith

    发明人： Yuemei Yang ,  Martin Grosboll ,  Kenneth Smith

    IPC分类号： C01B31/02 ,  D01F9/12

    CPC分类号： B82Y40/00 ,  B82Y30/00 ,  C01B32/162 ,  C01B2202/02 ,  Y10S977/843

    摘要： A method for growing single-wall carbon nanotubes involves preparing a catalyst comprising catalytic metals, iron and molybdenum, and magnesium oxide support material and contacting the catalyst with a gaseous carbon-containing feedstock at a sufficient temperature and for a sufficient contact time to make single-wall carbon nanotubes. The weight ratio of iron and molybdenum can range from about 2 to 1 to about 10 to 1 and the metals loading up to about 10 wt % of the MgO. The catalyst can be sulfided. Methane is a suitable carbon-containing feedstock. The process can be conducted in batch, continuous or semi-continuous modes, in reactors, such as a transport reactor, fluidized bed reactor, moving bed reactors and combinations thereof. The process also includes making single-wall carbon nanotubes with catalysts comprising at least one Group VIB or Group VIIIB metal on supports such as magnesia, zirconia, silica, and alumina, where the catalyst is sulfided.

    摘要翻译： 用于生长单壁碳纳米管的方法包括制备包含催化金属，铁和钼以及氧化镁载体材料的催化剂，并将催化剂与含气态的原料在足够的温度下接触，并使其具有足够的接触时间 - 壁碳纳米管。 铁和钼的重量比可以在约2至1至约10至1的范围内，并且金属负载量高达MgO的约10重量％。 催化剂可以被硫化。 甲烷是合适的含碳原料。 该方法可以在反应器，例如运输反应器，流化床反应器，移动床反应器及其组合中以分批，连续或半连续模式进行。 该方法还包括制备具有至少一种VIB族或VIIIB族金属的催化剂的单壁碳纳米管，其载体如氧化镁，氧化锆，二氧化硅和氧化铝，其中催化剂被硫化。

    Spheroidal aggregates comprising single-wall carbon nanotubes and method for making the same
    8.
    发明授权
    Spheroidal aggregates comprising single-wall carbon nanotubes and method for making the same 有权
    包含单壁碳纳米管的球形聚集体及其制造方法

    公开(公告)号：US07566434B1

    公开(公告)日：2009-07-28

    申请号：US11533437

    申请日：2006-09-20

    申请人： Yuemei Yang ,  Martin Grosboll ,  Eduardo Vega, Jr.

    发明人： Yuemei Yang ,  Martin Grosboll ,  Eduardo Vega, Jr.

    IPC分类号： C01B31/02

    CPC分类号： B82Y30/00 ,  B82Y40/00 ,  C01B32/172 ,  C01B2202/02 ,  C01B2202/06 ,  D01F9/12 ,  Y10S977/845

    摘要： A method for separating single-wall carbon nanotubes from an aqueous slurry comprises adding a water-immiscible organic solvent to an aqueous slurry comprising single-wall carbon nanotubes, isolating at least some of the single-wall carbon nanotubes in the solvent, and removing the solvent from the single-wall carbon nanotubes to form dried single-wall carbon nanotubes. A spheroidal aggregate of single-wall carbon nanotubes is formed wherein the aggregate is approximately spherical and has a diameter in a range of about 0.1 and about 5 mm, and wherein the aggregate contains at least about 80 wt % single-wall carbon nanotubes. The spheroidal aggregates of single-wall carbon nanotubes are easily handled in industrial processes and are redispersable to single-wall carbon nanotubes and/or ropes of single-wall carbon nanotubes. This invention can also be applied to multi-wall carbon nanotubes.

    摘要翻译： 从含水浆料中分离单壁碳纳米管的方法包括向包含单壁碳纳米管的含水浆料中加入与水不混溶的有机溶剂，在溶剂中分离至少一些单壁碳纳米管， 溶剂从单壁碳纳米管形成干燥的单壁碳纳米管。 形成单壁碳纳米管的球形聚集体，其中聚集体近似为球形并且具有在约0.1和约5mm范围内的直径，并且其中聚集体含有至少约80重量％的单壁碳纳米管。 单壁碳纳米管的球形聚集体易于在工业过程中处理并且可再分散于单壁碳纳米管和/或单壁碳纳米管的绳索。 本发明也可应用于多壁碳纳米管。

    SPHEROIDAL AGGREGATES COMPRISING SINGLE-WALL CARBON NANOTUBES AND METHOD FOR MAKING THE SAME
    10.
    发明申请
    SPHEROIDAL AGGREGATES COMPRISING SINGLE-WALL CARBON NANOTUBES AND METHOD FOR MAKING THE SAME 有权
    包含单壁碳纳米管的SPHEROIDAL AGEGEGES及其制备方法

    公开(公告)号：US20090175778A1

    公开(公告)日：2009-07-09

    申请号：US11533437

    申请日：2006-09-20

    申请人： Yuemei Yang ,  Martin Grosboll ,  Eduardo Vega, JR.

    发明人： Yuemei Yang ,  Martin Grosboll ,  Eduardo Vega, JR.

    IPC分类号： C01B31/02

    CPC分类号： B82Y30/00 ,  B82Y40/00 ,  C01B32/172 ,  C01B2202/02 ,  C01B2202/06 ,  D01F9/12 ,  Y10S977/845

    摘要： A method for separating single-wall carbon nanotubes from an aqueous slurry comprises adding a water-immiscible organic solvent to an aqueous slurry comprising single-wall carbon nanotubes, isolating at least some of the single-wall carbon nanotubes in the solvent, and removing the solvent from the single-wall carbon nanotubes to form dried single-wall carbon nanotubes. A spheroidal aggregate of single-wall carbon nanotubes is formed wherein the aggregate is approximately spherical and has a diameter in a range of about 0.1 and about 5 mm, and wherein the aggregate contains at least about 80 wt % single-wall carbon nanotubes. The spheroidal aggregates of single-wall carbon nanotubes are easily handled in industrial processes and are redispersable to single-wall carbon nanotubes and/or ropes of single-wall carbon nanotubes. This invention can also be applied to multi-wall carbon nanotubes.

    摘要翻译： 从含水浆料中分离单壁碳纳米管的方法包括向包含单壁碳纳米管的含水浆料中加入与水不混溶的有机溶剂，在溶剂中分离至少一些单壁碳纳米管， 溶剂从单壁碳纳米管形成干燥的单壁碳纳米管。 形成单壁碳纳米管的球形聚集体，其中聚集体近似为球形并且具有在约0.1和约5mm范围内的直径，并且其中聚集体含有至少约80重量％的单壁碳纳米管。 单壁碳纳米管的球形聚集体易于在工业过程中处理并且可再分散于单壁碳纳米管和/或单壁碳纳米管的绳索。 本发明也可应用于多壁碳纳米管。