Method of fabricating catalyzed porous carbon electrode for fuel cell
    61.
    发明申请
    Method of fabricating catalyzed porous carbon electrode for fuel cell 审中-公开
    燃料电池催化多孔碳电极的制备方法

    公开(公告)号:US20020034676A1

    公开(公告)日:2002-03-21

    申请号:US09886620

    申请日:2001-06-22

    摘要: Disclosed herein is a method of fabricating a catalyzed porous electrode for fuel cell, which electrode can be fabricated in a simple and easy manner without forming a catalyst support layer of carbon particles, and has an excellent, stable catalytic efficiency. The method comprises treating an electrically conductive, porous carbon substrate with an oxidizing agent; making one face of the porous carbon substrate in contact with an electrodeposition solution As containing ions of a catalytic metal; applying a pulsed potential to the electrodeposition solution to deposit the catalytic metal on the porous substrate, thereby catalyzing the porous substrate; and heat-treating the catalyzed porous substrate.

    摘要翻译: 本文公开了一种制造用于燃料电池的催化多孔电极的方法,该电极可以简单且容易地制造而不形成碳颗粒的催化剂载体层,并且具有优异的稳定的催化效率。 该方法包括用氧化剂处理导电多孔碳底物; 使多孔碳基板的一面与电沉积溶液接触,含有催化金属的离子; 向电沉积溶液施加脉冲电位以将催化金属沉积在多孔基材上,由此催化多孔基材; 并对催化的多孔基材进行热处理。

    Fuel cell assembly method with selective catalyst loading
    62.
    发明申请
    Fuel cell assembly method with selective catalyst loading 有权
    具有选择性催化剂负载的燃料电池组装方法

    公开(公告)号:US20020022570A1

    公开(公告)日:2002-02-21

    申请号:US09871882

    申请日:2001-06-01

    IPC分类号: H01M004/88 H01M004/96

    摘要: A method of manufacturing an electrode for an electrochemical fuel cell is disclosed, comprising providing a sheet of compressed mass of expanded graphite particles having a plurality of perforations defined by walls of the expanded graphite particles, and the perforations passing through the sheet between first and second opposed surfaces of the sheet; coating the sheet with a thermosettable organic resin, said coating step compring filling a portion of said perforations with the thermosettable organic resin; curing and baking the sheet, and reopening a portion of the filled perforations during the curing and baking step; activating the thermosettable organic resin to form a high surface area carbon on the walls of the perforations; and loading a catalyst onto the high surface area carbon.

    摘要翻译: 本发明公开了一种电化学燃料电池用电极的制造方法,其特征在于,提供具有由所述膨胀石墨粒子的壁限定的多个穿孔的膨胀石墨粒子的压缩质量片,以及在所述第一和第二 片材的相对表面; 用热固性有机树脂涂覆所述片材,所述涂覆步骤用可热固的有机树脂填充所述穿孔的一部分; 固化和烘烤片材,并且在固化和烘烤步骤期间重新打开一部分填充的穿孔; 激活可热固的有机树脂以在穿孔的壁上形成高表面积的碳; 并将催化剂装载到高表面积碳上。

    Process for preparing a fuel cell electrode
    65.
    发明授权
    Process for preparing a fuel cell electrode 失效
    制备燃料电池的方法

    公开(公告)号:US3578505A

    公开(公告)日:1971-05-11

    申请号:US3578505D

    申请日:1966-07-08

    IPC分类号: H01M4/88 H01M13/00

    CPC分类号: H01M4/8817 H01M4/8846

    摘要: A PROCESS WHEREBY A CATALYTICALLY-ACTIVE METAL MAY BE APPLIED TO A POROUS SUBSTRATE IN THE PREPARATION OF A FUEL CELL ELECTRODE WHEREIN THE CATALYTICALLY-ACTIVE METAL IS APPLIED AS AN AQUEOUS LIQUID AND IT IS DESIRED TO EXCLUDE THE CATALYTICALLY-ACTIVE METAL FROM PORES HAVING RADII SMALLER THAN A PREDETERMINED MINIMUM. PARTICULARLY, THE PROCESS COMPRISES BLOCKING THE SMALLER PORES WITH A WATER-IM MISCIBLE LIQUID HAVING A BOILING PONIT ABOVE THAT OF WATER PRIOR TO THE TREATING OF THE SUBSTRATE WHEREBY THE BLOCKING IS ACCOMPLISHED BY CONTACTING THE POROUS SUBSTRATE WITH THE WATER-IMMISCIBLE LIQUID, AND THEN EVAPORATING THE WATER-IMMISCIBLE LIQUID FROM SUBSTRATE PORES HAVING RADII LARGER THAN THE PREDETERMINED MINIMUM. THE EVAPORATION IS CONDUCTED SO THAT THE WATER-IMMISCIBLE LIQUID REMAINS IN SUBSTRATE PORES HAVING RADII SMALLER THAN THE PREDETERMINED MINIMUM. THEN AN AQUEOUS SOLUTION OF THE CATALYTICALLY-ACTIVE METAL IS APPLIED TO THE POROUS SUBSTRATE. EVAPORATION OF THE AQUEOUS SOLUTION DEPOSITS THE CATALYTICALLY-ACTIVE METAL IN THE SUBSTRATE PORES HAVING RADII LARGER THAN THE PERDETERMINED MINIMUM. OFTEN THE POROUS SUBSTRATE CONTAINS PORES OF INORDINATE SIZE AND IN THIS CASE THE POROUS SUBSTRATE IS FIRST TREATED WITH AN AQUEOUS SOLUTION AND THE LARGEST PORES ARE EVACUATED. THEN THE POROUS SUBSTRATE IS TREATED WITH A WATER-IMMISCIBLE LIQUID CONTAINING A POLYMERIZABLE MONOMER POLYMERIZED IN SAID LARGER PORES AND DECREASING THEIR SIZE ACCORDINGLY.