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186 条记录 (耗时 0.026 秒)

    Low platinum fuel cell catalysts and method for preparing the same
    33.
    发明授权
    Low platinum fuel cell catalysts and method for preparing the same 失效
    低铂燃料电池催化剂及其制备方法

    公开(公告)号：US07351444B2

    公开(公告)日：2008-04-01

    申请号：US10823088

    申请日：2004-04-12

    申请人： Ning Wang ,  Yi Dong ,  Yi-Qun Li

    发明人： Ning Wang ,  Yi Dong ,  Yi-Qun Li

    IPC分类号： H01M4/96 ,  H01M4/92 ,  H01M8/10 ,  B05D5/12 ,  B01J21/18

    CPC分类号： H01M4/92 ,  B82Y30/00 ,  H01M4/921 ,  H01M4/926 ,  H01M8/0234 ,  H01M8/1007

    摘要： This invention provides novel fuel cell catalysts comprising new series of catalytically active thin-film metal alloys with low platinum concentration supported on nanostructured materials (nanoparticles). In certain embodiments, an integrated gas-diffusion/electrode/catalyst layer can be prepared by processing catalyst thin films and nanoparticales into gas-diffusion media such as Toray or SGL carbon fiber papers. The catalysts can be placed in contact with an electrolyte membrane for PEM fuel cell applications.

    摘要翻译： 本发明提供了新型的燃料电池催化剂，其包含新的一系列具有低铂浓度的催化活性薄膜金属合金，其纳米结构材料（纳米颗粒）负载。 在某些实施方案中，可以通过将催化剂薄膜和纳米颗粒加工成气体扩散介质如Toray或SGL碳纤维纸来制备集成的气体扩散/电极/催化剂层。 催化剂可以与用于PEM燃料电池应用的电解质膜接触。

    Electrochemical probe for screening multiple-cell arrays
    35.
    发明授权
    Electrochemical probe for screening multiple-cell arrays 有权
    用于筛选多细胞阵列的电化学探针

    公开(公告)号：US07432006B2

    公开(公告)日：2008-10-07

    申请号：US10857604

    申请日：2004-05-27

    申请人： Yi-Qun Li ,  Yi Dong ,  Ning Wang

    发明人： Yi-Qun Li ,  Yi Dong ,  Ning Wang

    IPC分类号： H01M2/00 ,  H01M2/02 ,  H01M8/10 ,  H01M4/00 ,  G01N27/26

    CPC分类号： H01M8/04582 ,  H01M8/04373 ,  H01M8/04552 ,  H01M8/04604 ,  H01M8/04738 ,  H01M8/08 ,  H01M8/10 ,  H01M2008/1293 ,  H01M2008/147 ,  Y02E60/526

    摘要： Novel systems for combinatorially screening an array of electrochemical cells are disclosed. The screening aparatus may comprise a system of electrodes and electrolytes common to each of the members of an electrochemical cell array. An electrochemical probe is used to supply a reactive fluid (or reactive species) to only one of the cells in the array at a time. The probe is configured to address each of the cells of the array individually, and to be chemically isolated from all of the other cells of the array. Thus, the cells of the array that are not being addressed by the probe are in a non-active condition. Such a system is capable of combinatorially screening a library of materials, including catalyst, electrode, and electrolyte materials, wherein each of the members of the library defines one of the cells of the array.

    摘要翻译： 公开了用于组合筛选电化学电池阵列的新型系统。 筛选装置可以包括电化学电池阵列的每个部件共同的电极和电解质系统。 电化学探针用于一次向阵列中的一个单元提供反应性流体（或反应性物质）。 探针配置为单独寻址阵列的每个单元格，并与阵列的所有其他单元进行化学隔离。 因此，未被探测器寻址的阵列的单元格处于非活动状态。 这种系统能够组合地筛选材料库，包括催化剂，电极和电解质材料，其中库的每个成员限定了阵列的一个单元。

    Compositions comprising a mixture of a BAM phosphor and at least one other hexaaluminate
    36.
    发明授权
    Compositions comprising a mixture of a BAM phosphor and at least one other hexaaluminate 失效
    包含BAM荧光体和至少一种其它六铝酸盐的混合物的组合物

    公开(公告)号：US07736536B2

    公开(公告)日：2010-06-15

    申请号：US11827352

    申请日：2007-07-10

    申请人： Ning Wang ,  Yi-Qun Li

    发明人： Ning Wang ,  Yi-Qun Li

    IPC分类号： C09K11/64 ,  C09K11/80 ,  C09K11/55

    CPC分类号： C09K11/7734 ,  C09K11/7792 ,  H01J2211/42

    摘要： Disclosed herein are phosphor compositions comprising a BAM phosphor BaMgAl10O17:Eu2+ and at least one other hexaaluminate that may also be europium activated. The BAM may be mixed with any number of different kinds of heaxaaluminates having a similar crystal structure. The aluminum ratio may also be adjusted to alter the defect structure or to produce a second phase. Addition of another hexaaluminate to BAM enhances emission intensity and resistance to degradation, which is beneficial to applications such as plasma display panels.

    摘要翻译： 本文公开了包含BAM荧光体BaMgAl10O17：Eu2 +和至少一种其他六铝酸盐的荧光体组合物，其也可以被铕活化。 BAM可以与任何数量的具有相似晶体结构的不同种类的白沙铝混合。 还可以调整铝比以改变缺陷结构或产生第二相。 向BAM添加另一种六铝酸盐增强了发射强度和抗降解性，这有利于诸如等离子体显示面板的应用。