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    Carbon Nanotube Particulates, Compositions and Use Thereof
    2.
    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
    3.
    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。