METHOD FOR MANUFACTURING ELECTRODE CATALYST FOR FUEL CELL
    8.
    发明公开
    METHOD FOR MANUFACTURING ELECTRODE CATALYST FOR FUEL CELL 有权
    VERFAHREN ZUR HERSTELLUNG EINES ELEKTRODENKATALYSATORSFÜREINE BRENNSTOFFZELLE

    公开(公告)号:EP2006943A1

    公开(公告)日:2008-12-24

    申请号:EP07741165.0

    申请日:2007-03-30

    摘要: To provide a production process of an electrode catalyst for fuel cell whose initial voltage is high and whose endurance characteristics, especially, whose voltage drop being caused by high-potential application is less.
    A production process according to the present invention of an electrode catalyst for fuel cell is characterized in that : it includes: a dispersing step of dispersing a conductive support in a solution; a loading step of dropping a platinum-salt solution, a base-metal-salt solution and an iridium-salt solution to the resulting dispersion liquid, thereby loading respective metallic salts on the conductive support as hydroxides under an alkaline condition; and an alloying step of heating the conductive support with metallic hydroxides loaded in a reducing atmosphere to reduce them, thereby alloying them.

    摘要翻译: 提供初始电压高的燃料电池用电极催化剂的制造方法,特别是其高电位应用引起的电压降较小的耐久性特性。 根据本发明的用于燃料电池的电极催化剂的制备方法的特征在于:它包括:将导电载体分散在溶液中的分散步骤; 将铂盐溶液,碱金属盐溶液和铱盐溶液滴加到所得分散液中的装载步骤,从而在碱性条件下将各种金属盐作为氢氧化物负载在导电载体上; 以及合金化步骤,用负载在还原气氛中的金属氢氧化物来加热导电载体以减少它们,从而使它们合金化。