METHOD FOR PRODUCING CATALYST FOR FUEL CELLS, AND FUEL CELL WHICH COMPRISES CATALYST FOR FUEL CELLS PRODUCED BY SAID PRODUCTION METHOD
    6.
    发明公开
    METHOD FOR PRODUCING CATALYST FOR FUEL CELLS, AND FUEL CELL WHICH COMPRISES CATALYST FOR FUEL CELLS PRODUCED BY SAID PRODUCTION METHOD 审中-公开
    制造用于燃料电池和燃料电池的催化剂随着对燃料电池这个过程制得的催化剂

    公开(公告)号:EP2854207A1

    公开(公告)日:2015-04-01

    申请号:EP13790011.4

    申请日:2013-01-21

    摘要: The present invention is to provide a method for producing a catalyst for fuel cells with excellent durability, and a fuel cell comprising a catalyst for fuel cells produced by the production method. Disclosed is a method for producing a catalyst for fuel cells, the catalyst comprising fine catalyst particles, each of which comprises a palladium-containing core particle and a platinum-containing outermost layer covering the core particle, and carbon supports on which the fine catalyst particles are supported, wherein the method comprises the steps of: preparing carbon supports on which palladium-containing particles are supported; fining the carbon supports; and covering the palladium-containing particles with a platinum-containing outermost layer after the fining step.

    摘要翻译: 本发明是一种用于制造用于燃料电池具有优异的耐久性的催化剂的方法,以及燃料电池,其包括用于通过该制造方法制造的燃料电池的催化剂。 公开了制备用于燃料电池的催化剂的方法,所述催化剂包含催化剂微粒,其每一个包括一个含钯核粒子和覆盖该核颗粒的含铂的最外层,和碳载体在其上的催化剂微粒 被支持,worin该方法包括以下步骤:制备碳载体上含钯粒子被支撑; 澄清的碳载体; 和覆盖所述含钯粒子与澄清步骤后含铂的最外层。

    METHOD FOR PRODUCING CORE-SHELL CATALYST PARTICLES
    7.
    发明公开
    METHOD FOR PRODUCING CORE-SHELL CATALYST PARTICLES 审中-公开
    VERFAHREN ZUR HERSTELLUNG VON KERN-SCHALE-KATALYSATORPARTIKELN

    公开(公告)号:EP3106223A1

    公开(公告)日:2016-12-21

    申请号:EP14882348.7

    申请日:2014-12-22

    摘要: The present invention is to provide a method for producing core-shell catalyst particles with high catalytic activity per unit mass of platinum. Disclosed is a method for producing core-shell catalyst particles including a core containing palladium and a shell containing platinum and covering the shell, wherein the method includes: a step of depositing copper on the surface of the palladium-containing particles by applying a potential that is nobler than the oxidation-reduction potential of copper to the palladium-containing particles in a copper ion-containing electrolyte, and a step of forming the shell by, after the copper deposition step and inside the reaction system kept at -3°C or more and 10°C or less, substituting the copper deposited on the surface of the palladium-containing particles with platinum by bringing the copper into contact with a platinum ion-containing solution in which platinum ions and a reaction inhibitor that inhibits a substitution reaction between the copper and the platinum, are contained.

    摘要翻译: 本发明提供一种生产具有高铂催化活性的核 - 壳催化剂颗粒的方法。 公开了一种生产核 - 壳催化剂颗粒的方法,其包括含有钯和包含铂并且覆盖壳的壳的芯,其中所述方法包括:通过施加电位将钯沉积在含钯颗粒的表面上的步骤 比铜对含铜离子的电解质中的含钯颗粒的氧化还原电位更贵,并且在铜沉积步骤之后和反应体系内部保持在-3℃下形成壳的步骤或 更多和10℃或更低,通过使铜与含铂离子的溶液接触来代替沉积在含钯颗粒表面上的铜,其中铂离子和抑制剂之间的取代反应的反应抑制剂 铜和铂。