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    Photoactive pyrite layer and process for making and using same
    1.
    发明授权
    Photoactive pyrite layer and process for making and using same 失效
    光敏黄铁矿层及其制造和使用过程

    公开(公告)号：US4649227A

    公开(公告)日：1987-03-10

    申请号：US758508

    申请日：1985-07-24

    申请人： Helmut Tributsch ,  Ahmed Ennaoui ,  Wolfram Jaegermann ,  Sebastian Fiechter

    发明人： Helmut Tributsch ,  Ahmed Ennaoui ,  Wolfram Jaegermann ,  Sebastian Fiechter

    IPC分类号： C30B25/00 ,  C30B29/46 ,  H01L31/032 ,  H01L31/04 ,  H01M6/36

    CPC分类号： H01L31/032 ,  C30B25/00 ,  C30B29/46 ,  Y02E10/50

    摘要： Photoactive pyrite layers, whose preparation and use represent a commercially highly interesting alternative to materials hitherto in common use. The semiconductor material chiefly used until now, e.g. for solar cells, is silicon. However, its costs of manufacture are too high to allow solar cells to be made at favorable cost. The significance of the disclosure and development of pyrite as a semiconductor material, especially for solar cells, lies in the fact that it is plentifully occurring and cheap, as well as environmentally compatible. Pyrite (iron pyrites, FeS.sub.2) can be used as a photoactive material in solar cells and in optoelectronic components. It is possible to use both naturally occurring pyrite, after a material treatment to improve the photosensitivity, as well as synthetically produced, single-crystal and polycrystalline pyrite.

    摘要翻译： 光敏黄铁矿层，其制备和用途代表了迄今普遍使用的材料的商业上非常有趣的替代物。 迄今为止主要使用的半导体材料，例如， 对于太阳能电池，是硅。 然而，其制造成本太高，不能以有利的成本制造太阳能电池。 黄铁矿作为半导体材料，特别是太阳能电池的披露和开发的意义在于它是充分发生和便宜以及环境兼容的事实。 黄铁矿（铁黄铁矿，FeS2）可用作太阳能电池和光电子元件中的光活性材料。 在材料处理之后，可以使用天然存在的黄铁矿来改善光敏性，以及合成生产的单晶和多晶黄铁矿。

    ELECTRODE CATALYST FOR FUEL CELL
    5.
    发明申请
    ELECTRODE CATALYST FOR FUEL CELL 审中-公开
    燃料电池用电极催化剂

    公开(公告)号：US20120149545A1

    公开(公告)日：2012-06-14

    申请号：US13377198

    申请日：2009-06-10

    申请人： Hiroaki Takahashi ,  Iris Herrmann-Geppert ,  Gerald Zehl ,  Peter Bogdanoff ,  Sebastian Fiechter

    发明人： Hiroaki Takahashi ,  Iris Herrmann-Geppert ,  Gerald Zehl ,  Peter Bogdanoff ,  Sebastian Fiechter

    IPC分类号： B01J37/08 ,  B01J37/34

    CPC分类号： H01M4/92 ,  H01M4/8817 ,  H01M4/926 ,  H01M8/1004

    摘要： An object of the present invention is to provide a platinum catalyst for a fuel cell, the platinum catalyst having platinum particles with a fine particle size which are supported on carbon carriers in a highly dispersed manner. To achieve the above object, the present invention provides a method for producing an electrode catalyst for a fuel cell, the method comprising: an ammonia treatment step of heat-treating carbon carriers in an ammonia gas atmosphere; a platinum salt contact step of mixing the carbon carriers treated with ammonia with a solution prepared by dissolving a platinum salt in a solvent and bringing the platinum salt coming into contact with the carbon carriers in the mixture that has been formed; a recovery step of recovering the carbon carriers by removing the solvent from the mixture; and a heat treatment step of heat-treating the recovered carbon carriers in an inert gas atmosphere.

    摘要翻译： 本发明的目的是提供一种用于燃料电池的铂催化剂，铂催化剂具有以高度分散的方式负载在碳载体上的具有细颗粒尺寸的铂颗粒。 为了实现上述目的，本发明提供一种燃料电池用电极催化剂的制造方法，该方法包括：氨气处理工序，对氨载气中的碳载体进行热处理; 将用氨处理的碳载体与通过将铂盐溶解在溶剂中制备的溶液并使铂盐与形成的混合物中的碳载体接触的铂盐接触步骤; 通过从混合物中除去溶剂来回收碳载体的回收步骤; 以及在惰性气体气氛中对回收的碳载体进行热处理的热处理工序。