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    Catalytic coatings and fuel cell electrodes and membrane electrode assemblies made therefrom
    8.
    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。

    Ion beam modification of bioactive ceramics to accelerate biointegration of said ceramics
    10.
    再颁专利
    Ion beam modification of bioactive ceramics to accelerate biointegration of said ceramics 失效
    离子束修饰生物活性陶瓷以加速所述陶瓷的生物整合

    公开(公告)号：USRE37718E1

    公开(公告)日：2002-05-28

    申请号：US08820813

    申请日：1997-04-02

    申请人： Cheryl Blanchard ,  Geoffrey Dearnaley ,  James Lankford, Jr.

    发明人： Cheryl Blanchard ,  Geoffrey Dearnaley ,  James Lankford, Jr.

    IPC分类号： A61F228

    CPC分类号： C23C14/48 ,  A61F2/30767 ,  A61F2/3094 ,  A61F2002/30062 ,  A61F2210/0004 ,  A61F2310/00179 ,  A61F2310/00203 ,  A61F2310/00293 ,  A61F2310/00796 ,  A61L27/32

    摘要： The present invention provides for faster and stronger tissue-implant bonding by treating a ceramic implant with an ion beam to modify the surface of the ceramic. The surface modification can give the ceramic improved ion-exchange properties depending upon the particular ceramic and the type of ions used. In a preferred embodiment, a bioactive ceramic orthopaedic, dental, or soft tissue implant is bombarded with a beam of cations. When implanted in the body, the surface modification causes an increase in the release of critical ions, such as calcium or phosphorus, from the surface of the ceramic implant, and thereby accelerates implant-tissue bond formation.

    摘要翻译： 本发明通过用离子束处理陶瓷植入物来改变陶瓷的表面来提供更快和更强的组织植入物结合。 根据具体的陶瓷和使用的离子类型，表面改性可以提供陶瓷提高的离子交换性能。 在优选的实施方案中，用阳离子束轰击生物活性陶瓷整形外科，牙科或软组织植入物。 当植入体内时，表面改性导致从陶瓷植入物的表面释放关键离子（例如钙或磷），从而加速植入物组织结合形成。