利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

85 条记录 (耗时 0.029 秒)

    Carbon nanotube and nanofiber film-based membrane electrode assemblies
    1.
    发明授权
    Carbon nanotube and nanofiber film-based membrane electrode assemblies 有权
    碳纳米管和纳米纤维膜基膜电极组件

    公开(公告)号：US08415012B2

    公开(公告)日：2013-04-09

    申请号：US12505070

    申请日：2009-07-17

    申请人： Jian-ping Zheng ,  Zhiyong Liang ,  Ben Wang ,  Chun Zhang ,  Wei Zhu

    发明人： Jian-ping Zheng ,  Zhiyong Liang ,  Ben Wang ,  Chun Zhang ,  Wei Zhu

    IPC分类号： H01M8/10 ,  H01M4/88

    CPC分类号： C04B35/83 ,  B82Y30/00 ,  C04B2235/5288 ,  H01M4/8807 ,  H01M4/926 ,  H01M8/0234 ,  H01M8/0245 ,  H01M8/1004 ,  Y02P70/56 ,  Y10T428/30

    摘要： A membrane electrode assembly (MEA) for a fuel cell comprising a catalyst layer and a method of making the same. The catalyst layer can include a plurality of catalyst nanoparticles, e.g., platinum, disposed on buckypaper. The catalyst layer can have 1% or less binder prior to attachment to the membrane electrode assembly. The catalyst layer can include (a) single-wall nanotubes, small diameter multi-wall nanotubes, or both, and (b) large diameter multi-wall nanotubes, carbon nanofibers, or both. The ratio of (a) to (b) can range from 1:2 to 1:20. The catalyst layer can produce a surface area utilization efficiency of at least 60% and the platinum utilization efficiency can be 0.50 gPt/kW or less.

    摘要翻译： 一种用于燃料电池的膜电极组件（MEA），其包括催化剂层及其制造方法。 催化剂层可以包括设置在压缩纸上的多个催化剂纳米颗粒，例如铂。 催化剂层可以在连接到膜电极组件之前具有1％以下的粘合剂。 催化剂层可以包括（a）单壁纳米管，小直径多壁纳米管或两者，和（b）大直径多壁纳米管，碳纳米纤维或两者。 （a）至（b）的比例可以为1:2至1:20。 催化剂层可以产生至少60％的表面积利用效率，铂利用效率可以为0.50gPt / kW以下。

    CATALYTIC ELECTRODE WITH GRADIENT POROSITY AND CATALYST DENSITY FOR FUEL CELLS
    2.
    发明申请
    CATALYTIC ELECTRODE WITH GRADIENT POROSITY AND CATALYST DENSITY FOR FUEL CELLS 有权
    具有梯度孔隙度和催化剂密度的燃料电池的催化电极

    公开(公告)号：US20110008705A1

    公开(公告)日：2011-01-13

    申请号：US12839124

    申请日：2010-07-19

    申请人： Jian-Ping Zheng ,  Zhiyong Liang ,  Ben Wang ,  Chun Zhang ,  Wei Zhu

    发明人： Jian-Ping Zheng ,  Zhiyong Liang ,  Ben Wang ,  Chun Zhang ,  Wei Zhu

    IPC分类号： H01M8/10

    CPC分类号： H01M4/8642 ,  B82Y30/00 ,  C04B2235/5288 ,  H01M4/8657 ,  H01M4/8807 ,  H01M4/8892 ,  H01M4/92 ,  H01M4/926 ,  H01M8/0234 ,  H01M8/0245 ,  H01M8/1004 ,  Y02P70/56

    摘要： A membrane electrode assembly (MEA) for a fuel cell comprising a gradient catalyst structure and a method of making the same. The gradient catalyst structure can include a plurality of catalyst nanoparticles, e.g., platinum, disposed on layered buckypaper. The layered buckypaper can include at least a first layer and a second layer and the first layer can have a lower porosity compared to the second layer. The gradient catalyst structure can include single-wall nanotubes, carbon nanofibers, or both in the first layer of the layered buckypaper and can include carbon nanofibers in the second layer of the layered buckypaper. The MEA can have a catalyst utilization efficiency of at least 0.35 gcat/kW or less.

    摘要翻译： 一种用于燃料电池的膜电极组件（MEA），其包括梯度催化剂结构及其制备方法。 梯度催化剂结构可以包括设置在分层压滤纸上的多个催化剂纳米颗粒，例如铂。 所述分层消音器可以包括至少第一层和第二层，并且与第二层相比，第一层可以具有较低的孔隙率。 梯度催化剂结构可以包括单层纳米管，碳纳米纤维或层状降压纸的第一层中的两者，并且可以在层叠的消泡剂的第二层中包括碳纳米纤维。 MEA的催化剂利用效率至少为0.35gcat / kW以下。

    Catalytic electrode with gradient porosity and catalyst density for fuel cells
    3.
    发明授权
    Catalytic electrode with gradient porosity and catalyst density for fuel cells 有权
    催化电极具有梯度孔隙率和燃料电池的催化剂密度

    公开(公告)号：US08703355B2

    公开(公告)日：2014-04-22

    申请号：US12839124

    申请日：2010-07-19

    申请人： Chun Zhang ,  Wei Zhu ,  Jian-ping Zheng ,  Zhiyong Liang ,  Ben Wang

    发明人： Chun Zhang ,  Wei Zhu ,  Jian-ping Zheng ,  Zhiyong Liang ,  Ben Wang

    IPC分类号： H01M8/10 ,  H01M4/88

    CPC分类号： H01M4/8642 ,  B82Y30/00 ,  C04B2235/5288 ,  H01M4/8657 ,  H01M4/8807 ,  H01M4/8892 ,  H01M4/92 ,  H01M4/926 ,  H01M8/0234 ,  H01M8/0245 ,  H01M8/1004 ,  Y02P70/56

    摘要： A membrane electrode assembly (MEA) for a fuel cell comprising a gradient catalyst structure and a method of making the same. The gradient catalyst structure can include a plurality of catalyst nanoparticles, e.g., platinum, disposed on layered buckypaper. The layered buckypaper can include at least a first layer and a second layer and the first layer can have a lower porosity compared to the second layer. The gradient catalyst structure can include single-wall nanotubes, carbon nanofibers, or both in the first layer of the layered buckypaper and can include carbon nanofibers in the second layer of the layered buckypaper. The MEA can have a catalyst utilization efficiency of at least 0.35 gcat/kW or less.

    摘要翻译： 一种用于燃料电池的膜电极组件（MEA），其包括梯度催化剂结构及其制备方法。 梯度催化剂结构可以包括设置在分层压滤纸上的多个催化剂纳米颗粒，例如铂。 所述分层消音器可以包括至少第一层和第二层，并且与第二层相比，第一层可以具有较低的孔隙率。 梯度催化剂结构可以包括单层纳米管，碳纳米纤维或层状降压纸的第一层中的两者，并且可以在层叠的消泡剂的第二层中包括碳纳米纤维。 MEA的催化剂利用效率至少为0.35gcat / kW以下。

    CARBON NANOTUBE AND NONOFIBER FILM-BASED MEMBRANE ELECTRODE ASSEMBLIES
    4.
    发明申请
    CARBON NANOTUBE AND NONOFIBER FILM-BASED MEMBRANE ELECTRODE ASSEMBLIES 有权
    碳纳米管和非尼龙膜基膜电极组件

    公开(公告)号：US20100143822A1

    公开(公告)日：2010-06-10

    申请号：US12505070

    申请日：2009-07-17

    申请人： Jian-ping Zheng ,  Zhiyong Liang ,  Ben Wang ,  Chun Zhang ,  Wei Zhu

    发明人： Jian-ping Zheng ,  Zhiyong Liang ,  Ben Wang ,  Chun Zhang ,  Wei Zhu

    IPC分类号： H01M8/10

    CPC分类号： C04B35/83 ,  B82Y30/00 ,  C04B2235/5288 ,  H01M4/8807 ,  H01M4/926 ,  H01M8/0234 ,  H01M8/0245 ,  H01M8/1004 ,  Y02P70/56 ,  Y10T428/30

    摘要： A membrane electrode assembly (MEA) for a fuel cell comprising a catalyst layer and a method of making the same. The catalyst layer can include a plurality of catalyst nanoparticles, e.g., platinum, disposed on buckypaper. The catalyst layer can have 1% or less binder prior to attachment to the membrane electrode assembly. The catalyst layer can include (a) single-wall nanotubes, small diameter multi-wall nanotubes, or both, and (b) large diameter multi-wall nanotubes, carbon nanofibers, or both. The ratio of (a) to (b) can range from 1:2 to 1:20. The catalyst layer can produce a surface area utilization efficiency of at least 60% and the platinum utilization efficiency can be 0.50 gPt/kW or less.

    摘要翻译： 一种用于燃料电池的膜电极组件（MEA），其包括催化剂层及其制造方法。 催化剂层可以包括设置在压缩纸上的多个催化剂纳米颗粒，例如铂。 催化剂层可以在连接到膜电极组件之前具有1％以下的粘合剂。 催化剂层可以包括（a）单壁纳米管，小直径多壁纳米管或两者，和（b）大直径多壁纳米管，碳纳米纤维或两者。 （a）至（b）的比例可以为1:2至1:20。 催化剂层可以产生至少60％的表面积利用效率，铂利用效率可以为0.50gPt / kW以下。

    Method for Functionalization of Nanoscale Fiber Films
    7.
    发明申请
    Method for Functionalization of Nanoscale Fiber Films 有权
    纳米级纤维膜功能化方法

    公开(公告)号：US20100028639A1

    公开(公告)日：2010-02-04

    申请号：US11749302

    申请日：2007-05-16

    申请人： Zhiyong Liang ,  Ben Wang ,  Chun Zhang ,  Shiren Wang

    发明人： Zhiyong Liang ,  Ben Wang ,  Chun Zhang ,  Shiren Wang

    IPC分类号： B32B9/00

    CPC分类号： D06M10/008 ,  B82Y30/00 ,  B82Y40/00 ,  C01B32/174 ,  D06M2101/40 ,  D21H13/50 ,  D21H15/02 ,  D21H19/14 ,  D21H25/04 ,  Y10S977/742

    摘要： Methods are provided for functionalizing a macroscopic film comprised of nanoscale fibers by controlled irradiation. The methods may include the steps of (a) providing a nanoscale fiber film material comprising a plurality of nanoscale fibers (which may include single wall nanotubes, multi-wall nanotubes, carbon nanofibers, or a combination thereof); and (b) irradiating the nanoscale fiber film material with a controlled amount of radiation in the open air or in a controlled atmosphere. The step of irradiating the nanoscale fiber film material is effective to functionalize the plurality of nanoscale fibers. Irradiated nanoscale fiber films are also provided having improved mechanical and electrical conducting properties.

    摘要翻译： 提供了通过受控照射使由纳米级纤维构成的肉眼膜官能化的方法。 所述方法可以包括以下步骤：（a）提供包含多个纳米级纤维（其可以包括单壁纳米管，多壁纳米管，碳纳米纤维或其组合）的纳米级纤维膜材料; 和（b）在露天或受控气氛中用受控量的辐射照射纳米级纤维膜材料。 对纳米级纤维膜材料照射的步骤对多个纳米级纤维进行官能化是有效的。 还提供了具有改善的机械和导电性能的辐照的纳米级纤维膜。

    Method for continuous fabrication of carbon nanotube networks or membrane materials
    9.
    发明授权
    Method for continuous fabrication of carbon nanotube networks or membrane materials 有权
    连续制造碳纳米管网络或膜材料的方法

    公开(公告)号：US07459121B2

    公开(公告)日：2008-12-02

    申请号：US11185513

    申请日：2005-07-20

    申请人： Zhiyong Liang ,  Ben Wang ,  Chun Zhang ,  Jonnattan T. Ugarte ,  Chih-Yen Lin ,  James Thagard

    发明人： Zhiyong Liang ,  Ben Wang ,  Chun Zhang ,  Jonnattan T. Ugarte ,  Chih-Yen Lin ,  James Thagard

    IPC分类号： B29C39/14 ,  B01D61/00 ,  D01F9/12

    CPC分类号： B01D69/10 ,  B01D67/0046 ,  B01D71/021 ,  B01D2323/22 ,  B01D2323/35 ,  B01D2323/46 ,  B82Y30/00 ,  Y10S264/902 ,  Y10S977/742 ,  Y10S977/755

    摘要： Methods and devices are provided for the continuous production of a network of nanotubes or other nanoscale fibers. The method includes making a suspension of nanoscale fibers dispersed in a liquid medium, optionally with surfactant and/or sonication, and filtering the suspension by moving a filter membrane through the suspension, such that the nanoscale fibers are deposited directly on the filter membrane as the fluid medium flows through the filter membrane, thereby forming a continuous membrane of the nanoscale fibers. The deposition of the nanoscale fibers can occur when and where the filter membrane moves into contact with a static, porous filter element or a dynamic, porous filter element. The filtering can be conducted within a magnetic field effective to align the nanoscale fibers, and/or with the aid of vacuum to pull water through the filter membrane, applied pressure to press water though the filter membrane, or a combination thereof.

    摘要翻译： 提供了用于连续生产纳米管或其他纳米级纤维网络的方法和装置。 该方法包括制备分散在液体介质中的纳米尺度纤维的悬浮液，任选地用表面活性剂和/或超声处理，并且通过移动过滤膜通过悬浮液来过滤悬浮液，使得纳米级纤维直接沉积在过滤膜上作为 流体介质流过过滤膜，从而形成纳米级纤维的连续膜。 纳米尺度纤维的沉积可以在滤膜与静止的多孔过滤元件或动态多孔过滤元件接触时发生。 过滤可以在有效地对准纳米级纤维的磁场中和/或借助于真空来进行，以将水通过过滤膜，施加压力以通过过滤膜压入水或其组合。

    Electromagnetic Interference Shielding Structure Including Carbon Nanotubes and Nanofibers
    10.
    发明申请
    Electromagnetic Interference Shielding Structure Including Carbon Nanotubes and Nanofibers 审中-公开
    包括碳纳米管和纳米纤维的电磁干扰屏蔽结构

    公开(公告)号：US20080057265A1

    公开(公告)日：2008-03-06

    申请号：US11751655

    申请日：2007-05-22

    申请人： Zhiyong Liang ,  Ben Wang ,  Chun Zhang

    发明人： Zhiyong Liang ,  Ben Wang ,  Chun Zhang

    IPC分类号： B05D5/12 ,  B29C65/00 ,  B29C65/02 ,  B29C65/48 ,  B32B33/00 ,  B32B5/12

    CPC分类号： B32B5/02 ,  B32B33/00 ,  H05K9/009 ,  Y10T156/10 ,  Y10T428/24132 ,  Y10T428/249953 ,  Y10T428/265 ,  Y10T428/31504 ,  Y10T428/8305

    摘要： Electromagnetic interference (EMI) shielding structure and methods of making such structures are provided. In one case, a method is provided for making a lightweight composite structure for electromagnetic interference shielding, including the steps of providing a nanoscale fiber film which comprises a plurality of nanoscale fibers; and combining the nanoscale fiber film with one or more structural materials to form a composite material which is effective as an electromagnetic interference shielding structure. In another case, a method is provided for shielding a device which includes an electrical circuit from electromagnetic interference comprising the steps of providing a nanoscale fiber film which comprises a plurality of nanoscale fibers; and incorporating the nanoscale fiber film into an exterior portion of the device to shield an interior portion of the device from electromagnetic interference.

    摘要翻译： 提供电磁干扰（EMI）屏蔽结构和制造这种结构的方法。 在一种情况下，提供了一种用于制造用于电磁干扰屏蔽的轻质复合结构的方法，包括提供包括多个纳米级纤维的纳米级纤维膜的步骤; 并且将纳米级纤维膜与一种或多种结构材料结合以形成作为电磁干扰屏蔽结构有效的复合材料。 在另一种情况下，提供了一种用于屏蔽包括电磁干扰电路的设备的方法，包括以下步骤：提供包括多个纳米级纤维的纳米级纤维膜; 并将纳米尺度纤维膜并入设备的外部部分以屏蔽设备的内部免受电磁干扰。