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21 条记录 (耗时 0.018 秒)

    Catalytic coatings and fuel cell electrodes and membrane electrode assemblies made therefrom
    2.
    发明授权
    Catalytic coatings and fuel cell electrodes and membrane electrode assemblies made therefrom 有权
    催化涂层和由此制成的燃料电池电极和膜电极组件

    公开(公告)号：US07303834B2

    公开(公告)日：2007-12-04

    申请号：US10337065

    申请日：2003-01-06

    申请人： Geoffrey Dearnaley ,  James H. Arps

    发明人： Geoffrey Dearnaley ,  James H. Arps

    IPC分类号： H01M4/86 ,  B05D5/12

    CPC分类号： H01M4/8885 ,  H01M4/8621 ,  H01M4/92 ,  H01M4/96

    摘要： Fuel cell electrodes comprising a minimal load of catalyst having maximum catalytic activity and a method of forming such fuel cell electrodes. The preferred method comprises vaporizing a catalyst, preferably platinum, in a vacuum to form a catalyst vapor. A catalytically effective amount of the catalyst vapor is deposited onto a carbon catalyst support on the fuel cell electrode. The electrode preferably is carbon cloth. The method reduces the amount of catalyst needed for a high performance fuel cell electrode to about 0.3 mg/cm2 or less, preferably to about 0.1 mg/cm2. The electrocatalytic layer formed comprises unique, rod-like structures.

    摘要翻译： 包括具有最大催化活性的催化剂负载最小的燃料电池电极和形成这种燃料电池电极的方法。 优选的方法包括在真空中蒸发催化剂，优选铂，以形成催化剂蒸气。 将催化有效量的催化剂蒸气沉积在燃料电池电极上的碳催化剂载体上。 电极优选为碳布。 该方法将高性能燃料电池电极所需的催化剂量减少到约0.3mg / cm 2或更低，优选至约0.1mg / cm 2。 所形成的电催化层包含独特的棒状结构。

    Catalytic coatings and fuel cell electrodes and membrane electrode assemblies made therefrom
    4.
    发明授权
    Catalytic coatings and fuel cell electrodes and membrane electrode assemblies made therefrom 有权
    催化涂层和由此制成的燃料电池电极和膜电极组件

    公开(公告)号：US06610436B1

    公开(公告)日：2003-08-26

    申请号：US09509849

    申请日：2000-09-18

    申请人： Geoffrey Dearnaley ,  James H. Arps

    发明人： Geoffrey Dearnaley ,  James H. Arps

    IPC分类号： H01M490

    CPC分类号： H01M4/8885 ,  H01M4/8621 ,  H01M4/92 ,  H01M4/96

    摘要： Fuel cell electrodes comprising a minimal load of catalyst having maximum catalytic activity and a method of forming such fuel cell electrodes. The preferred method comprises vaporizing a catalyst, preferably platinum, in a vacuum to form a catalyst vapor. A catalytically effective amount of the catalyst vapor is deposited onto a carbon catalyst support on the fuel cell electrode. The electrode preferably is carbon cloth. The method reduces the amount of catalyst needed of a high performance fuel cell electrode to about 0.3 mg/cm2 or less, preferably to about 0.1 mg/cm2. The electrocatalytic layer formed comprises unique, rod-like structures.

    摘要翻译： 包括具有最大催化活性的催化剂负载最小的燃料电池电极和形成这种燃料电池电极的方法。 优选的方法包括在真空中蒸发催化剂，优选铂，以形成催化剂蒸气。 将催化有效量的催化剂蒸气沉积在燃料电池电极上的碳催化剂载体上。 电极优选为碳布。 该方法将高性能燃料电池电极所需的催化剂的量减少至约0.3mg / cm 2或更低，优选至约0.1mg / cm 2。 所形成的电催化层包含独特的棒状结构。

    Fuel cell membrane electrode assemblies with improved power outputs
    7.
    发明授权
    Fuel cell membrane electrode assemblies with improved power outputs 有权
    具有改进的功率输出的燃料电池膜电极组件

    公开(公告)号：US06287717B1

    公开(公告)日：2001-09-11

    申请号：US09190215

    申请日：1998-11-13

    申请人： Carlos A. Cavalca ,  James H. Arps

    发明人： Carlos A. Cavalca ,  James H. Arps

    IPC分类号： H01M486

    CPC分类号： H01M8/1004 ,  H01M4/8657 ,  H01M2250/20 ,  H01M2300/0082 ,  Y02E60/521 ,  Y02T90/32

    摘要： An electrode-membrane combination for use in a fuel cell comprising at least one reactant diffusive, electronically conductive electrode comprising at least one first catalytically active metal and at least one ionically conductive polymer; and at least one ionically conductive membrane contacting the electrode to form an electrode-membrane interfacial region, wherein the interfacial region comprises at least one zone comprising at least one second catalytically active metal and having a zone thickness of about 3 angstroms to about 475 angstroms. Surprisingly improved power output is observed. The zone is preferably deposited by electron beam physical vapor deposition. Substantially spherical nodules are observed for the zone from field-emission SEM analysis.

    摘要翻译： 一种用于燃料电池的电极 - 膜组合，包括至少一种反应物扩散的电子导电电极，其包含至少一种第一催化活性金属和至少一种离子导电聚合物; 和至少一个离子导电膜接触电极以形成电极 - 膜界面区域，其中界面区域包括至少一个包含至少一个第二催化活性金属并具有约3埃至约475埃的区域厚度的区域。 观察到惊人的功率输出。 该区域优选通过电子束物理气相沉积沉积。 从场发射扫描电子显微镜分析观察到该区域的实质球形结节。

    Plasma immersion ion processing for coating of hollow substrates
    8.
    发明授权
    Plasma immersion ion processing for coating of hollow substrates 有权
    用于涂覆中空基板的等离子浸渍离子处理

    公开(公告)号：US08029875B2

    公开(公告)日：2011-10-04

    申请号：US11752787

    申请日：2007-05-23

    申请人： Ronghua Wei ,  Christopher Rincon ,  James H. Arps

    发明人： Ronghua Wei ,  Christopher Rincon ,  James H. Arps

    IPC分类号： H05H1/24

    CPC分类号： C23C16/0245 ,  C23C16/045 ,  C23C16/24 ,  C23C16/26 ,  C23C16/505

    摘要： The present disclosure relates to a method for plasma ion deposition and coating formation. A vacuum chamber may be supplied, wherein the vacuum chamber is formed by a hollow substrate having a length, diameter and interior surface. A plasma may be formed within the chamber while applying a negative bias to the hollow substrate to draw ions from the plasma to the interior surface of the hollow substrate to deposit ions onto the interior surface and forming a coating. The coating may have a Vickers Hardness Number (Hv) of at least 500.

    摘要翻译： 本公开涉及等离子体离子沉积和涂层形成的方法。 可以提供真空室，其中真空室由具有长度，直径和内表面的中空衬底形成。 可以在室内形成等离子体，同时向中空衬底施加负偏压以将离子从等离子体吸入中空衬底的内表面，以将离子沉积到内表面上并形成涂层。 该涂层可具有至少500的维氏硬度值（Hv）。

    Biodegradable Metal-Polymer Composite Constructs For Implantable Medical Devices
    9.
    发明申请
    Biodegradable Metal-Polymer Composite Constructs For Implantable Medical Devices 审中-公开
    用于可植入医疗器械的可生物降解的金属 - 聚合物复合材料

    公开(公告)号：US20110046721A1

    公开(公告)日：2011-02-24

    申请号：US12853794

    申请日：2010-08-10

    申请人： James H. Arps

    发明人： James H. Arps

    IPC分类号： A61F2/82 ,  A61F2/00

    CPC分类号： A61L31/148 ,  A61L31/128 ,  C08L67/04

    摘要： Embodiments of the invention include biodegradable composites and medical devices including the same. In an embodiment the invention includes a biodegradable implantable medical device. The implantable medical device can include a biodegradable composite member including a polymeric matrix and a reinforcing metal disposed within the polymeric matrix. The biodegradable composite member can be configured to erode in vivo. In an embodiment the invention includes a method of making a biodegradable implantable device including contacting a polymer mixture with a reinforcing metal, the polymer mixture comprising a polymer that degrades under in vivo conditions and the reinforcing metal comprising a metal that produces substantially non-toxic erosion products. Other embodiments are included herein.

    摘要翻译： 本发明的实施方案包括可生物降解的复合物和包括其的医疗装置。 在一个实施方案中，本发明包括可生物降解的可植入医疗装置。 可植入医疗装置可以包括可生物降解的复合构件，其包括聚合物基质和设置在聚合物基体内的增强金属。 可生物降解的复合构件可以被配置为在体内侵蚀。 在一个实施方案中，本发明包括制备可生物降解的可植入装置的方法，包括使聚合物混合物与增强金属接触，所述聚合物混合物包含在体内条件下降解的聚合物和包含产生基本无毒侵蚀的金属的增强金属 产品。 本文还包括其它实施例。