Low platinum fuel cells, catalysts, and method for preparing the same
    31.
    发明申请
    Low platinum fuel cells, catalysts, and method for preparing the same 有权
    低铂燃料电池,催化剂及其制备方法

    公开(公告)号:US20060172179A1

    公开(公告)日:2006-08-03

    申请号:US11303476

    申请日:2005-12-15

    摘要: This invention provides novel fuel cell electrodes and catalysts comprising a series of catalytically active thin-film metal alloys with low platinum concentration supported on nanostructured materials (nanoparticles). Processing of the electrodes and catalysts can include electrodeposition methods, and high-pressure coating techniques. In certain embodiments, an integrated gas-diffusion/electrode/catalyst layer can be prepared by processing catalyst thin films and nanoparticles 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: 本发明提供新型燃料电池电极和催化剂,其包含一系列具有低铂浓度的催化活性薄膜金属合金,其负载在纳米结构材料(纳米颗粒)上。 电极和催化剂的加工可以包括电沉积方法和高压涂覆技术。 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
    32.
    发明申请
    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:US20050064251A1

    公开(公告)日:2005-03-24

    申请号:US10857604

    申请日:2004-05-27

    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。

    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

    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。

    Low platinum fuel cell catalysts and method for preparing the same
    37.
    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

    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。

    Methods of producing light emitting device with phosphor wavelength conversion
    39.
    发明授权
    Methods of producing light emitting device with phosphor wavelength conversion 有权
    用磷光体波长转换制造发光器件的方法

    公开(公告)号:US08883528B2

    公开(公告)日:2014-11-11

    申请号:US12239357

    申请日:2008-09-26

    申请人: Yi-Qun Li Yi Dong

    发明人: Yi-Qun Li Yi Dong

    摘要: A method of fabricating a light emitting device comprises: mounting a light emitting diode chip in a package; heating the light emitting diode chip package assembly to a pre-selected temperature; and dispensing a pre-selected volume of a mixture of at least one phosphor and a light transmissive thermosetting material (silicone, epoxy) on a surface of the chip. The pre-selected volume and temperature are selected such that the phosphor/material mixture flows over the entire light emitting surface of the chip before curing. In an alternative method, using a light transmissive UV curable material such as an epoxy, the phosphor/material mixture is irradiated with UV radiation after a pre-selected time to cure the material. The pre-selected volume and pre-selected time are selected such that the phosphor/material mixture flows over at least the light emitting surface of the chip before curing.

    摘要翻译: 一种制造发光器件的方法包括:将发光二极管芯片安装在封装中; 将发光二极管芯片封装组件加热到预选温度; 以及在所述芯片的表面上分配预先选定体积的至少一种荧光体和透光热固性材料(硅树脂,环氧树脂)的混合物。 选择预选择的体积和温度使得磷光体/材料混合物在固化之前流过芯片的整个发光表面。 在替代方法中,使用透光的UV可固化材料如环氧树脂,在预先选定的时间之后,用紫外线辐射照射磷光体/材料混合物以固化材料。 选择预选择的体积和预先选择的时间,使得磷光体/材料混合物在固化之前至少流过芯片的发光表面。

    Color temperature tunable white light source
    40.
    发明授权
    Color temperature tunable white light source 有权
    色温可调白光源

    公开(公告)号:US08203260B2

    公开(公告)日:2012-06-19

    申请号:US11787107

    申请日:2007-04-13

    IPC分类号: H01J1/62

    摘要: A color temperature tunable white light source comprises: first and second LED arrangements operable to emit light of first and second wavelength range respectively that are configured such that their combined light output, which comprises light generated by the source, appears white in color. One or both LED arrangements comprises a phosphor provided remote to an associated LED operable to generate excitation radiation and to irradiate the phosphor such that it emits light of a different wavelength range, wherein the light emitted by the LED arrangement comprises the combined light from the LED and phosphor. The color temperature of output white light is tunable by controlling the relative light outputs of the LED arrangements by for example controlling the relative magnitude of the drive currents of the LEDs or a duty cycle of a pulse width modulated drive current.

    摘要翻译: 色温可调白光源包括:第一和第二LED装置,其可操作以分别发射第一和第二波长范围的光,所述第一和第二波长范围被配置为使得它们的组合光输出(其包括源产生的光)看起来是白色的。 一个或两个LED布置包括荧光体,远离相关联的LED,其可操作以产生激发辐射并照射磷光体,使得其发射不同波长范围的光,其中由LED装置发射的光包括来自LED的组合光 和磷光体。 通过例如控制LED的驱动电流的相对幅度或脉冲宽度调制的驱动电流的占空比来控制LED配置的相对光输出,可以调节输出白光的色温。