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    METHOD OF PRODUCING ELECTRODES
    6.
    发明申请
    METHOD OF PRODUCING ELECTRODES 审中-公开
    生产电极的方法

    公开(公告)号：WO2007147689A8

    公开(公告)日：2008-02-14

    申请号：PCT/EP2007054802

    申请日：2007-05-17

    Applicant: CABOT CORP ,  HAMPDEN-SMITH MARK J ,  RICE GORDON L ,  ATANASSOVA PAOLINA ,  BREWSTER JAMES H ,  DERICOTTE DAVID ,  APODACA BRYAN G ,  KODAS TOIVO T

    Inventor： HAMPDEN-SMITH MARK J ,  RICE GORDON L ,  ATANASSOVA PAOLINA ,  BREWSTER JAMES H ,  DERICOTTE DAVID ,  APODACA BRYAN G ,  KODAS TOIVO T

    IPC: H01M4/88 ,  H01M4/04 ,  H01M8/10

    CPC classification number: H01M4/8846 ,  H01M4/8605 ,  H01M4/8825 ,  H01M4/886 ,  H01M4/92 ,  H01M4/926 ,  H01M8/0234 ,  H01M8/1007 ,  H01M2300/0082

    Abstract: In a method of producing an electrode comprising a layer of an electrocatalytic material on a substrate, at least one liquid medium containing a precursor to the electrocatalytic material is atomized to produce droplets containing the precursor and the droplets are entrained in a stream of carrier gas moving in a first direction. The droplets entrained in the carrier gas stream are then heated to remove the liquid medium and convert the precursor to particles of the electrocatalytic material. The electrocatalytic material particles entrained in said capier gas stream are then brought into contact with the substrate, whereby the electrocataiytic particles are separated from the carrier gas and collected on the substrate. By imparting relative movement between the substrate and the carrier gas stream in a second direction substantially perpendicular to the first direction a continuous layer of the electrocatalytic material can be progressively deposited on the substrate.

    Abstract translation: 在制造包含电催化材料层的电极的方法中，将含有电催化材料的前体的至少一种液体介质雾化以产生含有前体的液滴，并将液滴夹带在载气移动流中 在第一个方向。 夹带在载气流中的液滴然后被加热以除去液体介质并将前体转化为电催化材料的颗粒。 然后将夹带在所述能量气体流中的电催化材料颗粒与基底接触，由此电催化颗粒与载气分离并收集在基底上。 通过在基本上垂直于第一方向的第二方向上施加衬底和载气流之间的相对运动，电催化材料的连续层可以逐渐沉积在衬底上。

    PROCESSES FOR ACTIVATING MEMBRANE ELECTRODE ASSEMBLIES
    9.
    发明申请
    PROCESSES FOR ACTIVATING MEMBRANE ELECTRODE ASSEMBLIES 审中-公开
    激活膜电极组件的方法

    公开(公告)号：WO2008115676A3

    公开(公告)日：2009-01-08

    申请号：PCT/US2008055293

    申请日：2008-02-28

    Applicant: CABOT CORP ,  LEI HANWEI ,  ATANASSOVA PAOLINA ,  WALL RYAN C

    Inventor： LEI HANWEI ,  ATANASSOVA PAOLINA ,  WALL RYAN C

    IPC: H01M8/02 ,  H01M8/04 ,  H01M8/10

    CPC classification number: H01M8/0289 ,  H01M8/04238 ,  H01M8/1011 ,  Y02E60/523

    Abstract: A process for the activation of a membrane electrode assembly, such as a direct methanol fuel cell membrane electrode assembly, with a hydrocarbon fuel, e.g., an alkanol fuel such as methanol, and an oxidant is described. The process comprises repeatedly applying an increasing or decreasing potential in each of a plurality of cycles over a voltage range of at least 0.1 volts, e.g., at least 0.2 volts or at least 0.3 volts, until the membrane electrode assembly is substantially activated. The cycles optionally are organized in cycle sets with rest periods therebetween. The temperature at which the cycles are run optionally is increased or decreased in a respective cycle set.

    Abstract translation: 描述了用诸如甲醇的链烷醇燃料的烃燃料和氧化剂来活化诸如直接甲醇燃料电池膜电极组件的膜电极组件的方法。 该过程包括在至少0.1伏，例如至少0.2伏或至少0.3伏特的电压范围内，在多个周期的每一个周期内重复地施加增加或减少的电位，直到膜电极组件基本上被激活。 循环可选地以周期组合组织，其间具有休息期。 周期运行的温度可选地在相应的循环组中增加或减少。

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