Method for manufacturing metal nano particles having hollow structure
    7.
    发明授权
    Method for manufacturing metal nano particles having hollow structure 有权
    具有中空结构的金属纳米颗粒的制造方法

    公开(公告)号:US08460427B2

    公开(公告)日:2013-06-11

    申请号:US11873982

    申请日:2007-10-17

    IPC分类号: B22F9/16 B22F9/18 B22F9/24

    摘要: A method for manufacturing metal nano particles having a hollow structure is provided. First, a suitable reducing agent is added into a first metal salt solution, and first metal ions are reduced to form first metal nano particles. Next, after the reducing agent is decomposed, a second metal salt solution with a higher reduction potential than that of the first metal is added. Then, the first metal particles are oxidized to form first metal ions when the second metal ions are reduced on the surface of the first metal by electrochemical oxidation reduction reaction, and thus, second metal nano particles having a hollow structure and a larger surface area are obtained. The method is simple and the metal nano particles with uniform particle size are obtained by this method.

    摘要翻译: 提供了一种制造具有中空结构的金属纳米颗粒的方法。 首先,将合适的还原剂加入到第一金属盐溶液中,并且将第一金属离子还原形成第一金属纳米颗粒。 接着,在还原剂分解后,添加比第一金属还原电位高的第二金属盐溶液。 然后,当通过电化学氧化还原反应在第一金属的表面上还原第二金属离子时,第一金属颗粒被氧化以形成第一金属离子,因此具有中空结构和较大表面积的第二金属纳米颗粒是 获得。 该方法简单,通过该方法可以获得粒径均匀的金属纳米颗粒。

    ELECTRODE STRUCTURE
    8.
    发明申请
    ELECTRODE STRUCTURE 审中-公开
    电极结构

    公开(公告)号:US20100104924A1

    公开(公告)日:2010-04-29

    申请号:US12651407

    申请日:2009-12-31

    IPC分类号: H01M4/00

    摘要: An electrode structure of a fuel cell for power generation comprises an anodic structure, a cathodic structure, and an ionic exchange membrane disposed between the anodic and cathodic structures. The anodic and cathodic structures respectively are formed by multi-layer structures, to reduce the fuel crossover from the anodic structure to the cathodic structure, to reduce the catalysts applied amount, and to increase an output electrical energy of the fuel cell. The multi-layer structure of the anodic structure comprises a thin platinum alloy black layer, a Pt alloy layer disposed on the carbon material, and a substrate.

    摘要翻译: 用于发电的燃料电池的电极结构包括阳极结构,阴极结构和设置在阳极和阴极结构之间的离子交换膜。 阳极和阴极结构分别由多层结构形成,以减少从阳极结构到阴极结构的燃料交叉,减少催化剂的使用量,并增加燃料电池的输出电能。 阳极结构的多层结构包括薄的铂合金黑层,设置在碳材料上的Pt合金层和基底。

    Composition, complex and method for enhancing catalysts utilization
    9.
    发明申请
    Composition, complex and method for enhancing catalysts utilization 审中-公开
    组合物,复合物和提高催化剂利用的方法

    公开(公告)号:US20070048592A1

    公开(公告)日:2007-03-01

    申请号:US11429108

    申请日:2006-05-08

    摘要: The present invention relates to a composition for enhancing the utilization of catalysts in fuel cell, comprising catalysts, proton-exchanged ionic polymers, and coupling agents. The coupling agents are bonded to the catalysts or catalyst carriers by a B1 functional group and bonded to the proton-exchanged ionic polymers by a B2 functional group. The present invention also relates to a method for enhancing the utilization of catalysts in fuel cell, comprising the steps of (a) utrasonicating catalysts; (b) adding coupling agents to bond to the catalysts; (c) adding a perfluoro polymer to form a catalyst-coupling agent-perfluoro polymer complex whereby developing stable dispersion; wherein the coupling agents in step (b) are bonded to the catalysts by a B1 functional group and bonded to a perfluoro polymer by a B2 functional group. The present invention also provides a complex for enhancing the utilization of catalysts in fuel cell, comprising catalysts, coupling agents, and proton-exchanged ionic polymers, wherein the coupling agents are bonded to the catalysts by a B1 functional group and bonded to the perfluoro polymer by a B2 functional group to form a complex.

    摘要翻译: 本发明涉及一种提高燃料电池中催化剂利用率的组合物,其中包括催化剂,质子交换离子聚合物和偶联剂。 偶联剂通过B1官能团键合到催化剂或催化剂载体上,并通过B2官能团与质子交换的离子聚合物键合。 本发明还涉及一种提高燃料电池中催化剂利用率的方法,包括以下步骤:(a)挥发催化剂; (b)加入偶联剂以结合到催化剂上; (c)加入全氟聚合物以形成催化剂偶联剂 - 全氟聚合物络合物,从而形成稳定的分散体; 其中步骤(b)中的偶联剂通过B1官能团与催化剂结合并通过B2官能团与全氟聚合物键合。 本发明还提供了一种用于增强燃料电池中催化剂的利用的复合物,其包括催化剂,偶联剂和质子交换的离子聚合物,其中偶联剂通过B1官能团与催化剂结合并结合到全氟聚合物 由B2官能团组成复合物。