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14 条记录 (耗时 0.105 秒)

    Ternary fuel cell catalysts containing platinum, cobalt and chromium
    1.
    发明授权
    Ternary fuel cell catalysts containing platinum, cobalt and chromium 失效
    含有铂，钴和铬的三元燃料电池催化剂

    公开(公告)号：US4447506A

    公开(公告)日：1984-05-08

    申请号：US459002

    申请日：1983-01-17

    申请人： Francis J. Luczak ,  Douglas A. Landsman

    发明人： Francis J. Luczak ,  Douglas A. Landsman

    IPC分类号： B01J23/89 ,  C22C5/04 ,  H01M4/86 ,  H01M4/90 ,  H01M4/92

    CPC分类号： H01M4/926 ,  H01M4/92 ,  H01M2004/8689 ,  H01M2300/0005 ,  H01M2300/0008

    摘要： An improved ternary noble metal-containing, alloy catalyst which has a catalytic activity for the electrochemical reduction of oxygen greater than two and one-half times that of the supported unalloyed noble metal alone. In addition, a disclosure of the method of preparing said catalyst is by intimately contacting two metallic elements with a supported noble metal, then heating this material to form the ternary alloy catalyst. This catalyst has particular utility for the electrochemical reduction of oxygen which makes it particularly useful as a cathode in acid fuel cells. The preferred embodiment of this catalyst is finely divided platinum alloyed with chromium and cobalt supported on an electrically conductive carbon-black support material.

    摘要翻译： 一种改进的含三元贵金属的合金催化剂，其对于电化学还原氧的催化活性大于单独负载的非合金贵金属的催化活性的二倍以上。 此外，制备所述催化剂的方法的公开是通过使两种金属元素与负载的贵金属紧密接触，然后加热该材料以形成三元合金催化剂。 该催化剂对于电化学还原氧具有特别的用途，这使其特别适用于酸性燃料电池中的阴极。 该催化剂的优选实施方案是细小的铂与与负载在导电炭黑载体材料上的铬和钴合金化。

    Ternary fuel cell catalyst containing platinum and gallium
    2.
    发明授权
    Ternary fuel cell catalyst containing platinum and gallium 失效
    含铂和镓的三元燃料电池催化剂

    公开(公告)号：US4806515A

    公开(公告)日：1989-02-21

    申请号：US121009

    申请日：1987-11-16

    申请人： Francis J. Luczak ,  Douglas A. Landsman

    发明人： Francis J. Luczak ,  Douglas A. Landsman

    IPC分类号： B01J23/62 ,  B01J23/89 ,  B01J23/42 ,  B01J23/64

    CPC分类号： B01J23/896 ,  B01J23/62

    摘要： An improved ternary alloy catalyst for fuel cells containing platinum and gallium. The method of fabricating the catalyst in a high surface area supportive form is also described. The resultant fuel cell catalyst displays a substantial resistance to sintering during operation combined with a resistance to a chemical dissolution during operation. These enhancements permit improved long-term operation of fuel cells.

    摘要翻译： 一种用于含有铂和镓的燃料电池的改进的三元合金催化剂。 还描述了以高表面积支持形式制造催化剂的方法。 所得到的燃料电池催化剂在操作期间显示出对烧结的显着抵抗性，同时在操作期间具有抵抗化学溶解的能力。 这些增强能够改善燃料电池的长期运行。

    Method for making ternary fuel cell catalysts containing platinum cobalt and chromium
    8.
    发明授权
    Method for making ternary fuel cell catalysts containing platinum cobalt and chromium 失效
    制备含有铂钴和铬的三元燃料电池催化剂的方法

    公开(公告)号：US4613582A

    公开(公告)日：1986-09-23

    申请号：US575360

    申请日：1984-01-30

    申请人： Francis J. Luczak ,  Douglas A. Landsman

    发明人： Francis J. Luczak ,  Douglas A. Landsman

    IPC分类号： H01M4/86 ,  H01M4/92 ,  B01J21/18 ,  B01J23/64 ,  B01J23/86

    CPC分类号： H01M4/926 ,  H01M4/92 ,  H01M2004/8689 ,  H01M2300/0005 ,  H01M2300/0008

    摘要： An improved ternary noble metal-containing, alloy catalyst which has a catalytic activity for the electrochemical reduction of oxygen greater than two and one-half times that of the supported unalloyed noble metal alone. In addition, a disclosure of the method of preparing said catalyst is by intimately contacting two metallic elements with a supported noble metal, then heating this material to form the ternary alloy catalyst. This catalyst has particular utility for the electrochemical reduction of oxygen which makes it particularly useful as a cathode in acid fuel cells. The preferred embodiment of this catalyst is finely divided platinum alloyed with chromium and cobalt supported on an electrically conductive carbon-black support material.

    摘要翻译： 一种改进的含三元贵金属的合金催化剂，其对于电化学还原氧的催化活性大于单独负载的非合金贵金属的催化活性的二倍以上。 此外，制备所述催化剂的方法的公开是通过使两种金属元素与负载的贵金属紧密接触，然后加热该材料以形成三元合金催化剂。 该催化剂对于电化学还原氧具有特别的用途，这使其特别适用于酸性燃料电池中的阴极。 该催化剂的优选实施方案是细小的铂与与负载在导电炭黑载体材料上的铬和钴合金化。

    Fuel cell electrode and method of making and using same
    10.
    发明授权
    Fuel cell electrode and method of making and using same 失效
    燃料电池电极及其制造和使用方法

    公开(公告)号：US4810594A

    公开(公告)日：1989-03-07

    申请号：US177810

    申请日：1988-04-07

    申请人： Lawrence J. Bregoli ,  Francis J. Luczak

    发明人： Lawrence J. Bregoli ,  Francis J. Luczak

    IPC分类号： H01M4/88 ,  H01M4/96 ,  H01M8/04

    CPC分类号： H01M4/8807 ,  H01M4/8882 ,  H01M4/8896 ,  H01M4/96 ,  H01M4/8828

    摘要： A method for making a fuel cell electrode is disclosed. A layer of hydrophobic polymer and an electro-catalyst is deposited on the surface of a porous electrode substrate and press-sintered by heating the catalyst layer to a temperature between the melting point and decomposition temperature of the polymer and simultaneously compressing the layer at a pressure between 20 pounds per square inch and 100 pounds per square inch. The heating and compressing are continued for a time period of between 10 minutes and 20 minutes. A fuel cell electrode made by the above method and a method for generating electricity using such an electrode are also disclosed. A press-sintered fuel cell electrode provides improved peak performance as well as improved tolerance to electrolyte solidification.

    摘要翻译： 公开了制造燃料电池电极的方法。 将疏水性聚合物层和电催化剂层沉积在多孔电极基材的表面上，并通过将催化剂层加热到聚合物的熔点和分解温度之间的温度进行压制，同时在压力下压制该层 介于20磅/平方英寸和100磅/平方英寸之间。 加热和压缩持续10分钟至20分钟的时间。 还公开了通过上述方法制造的燃料电池电极和使用这种电极发电的方法。 压力烧结燃料电池电极提供改善的峰值性能以及改进的对电解质凝固的耐受性。