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    Electrode catalyst for fuel cell and production process of the same
    5.
    发明申请
    Electrode catalyst for fuel cell and production process of the same 审中-公开
    燃料电池用电极催化剂及其生产工艺相同

    公开(公告)号：US20090092888A1

    公开(公告)日：2009-04-09

    申请号：US12285076

    申请日：2008-09-29

    申请人： Hiroaki Takahashi ,  Sozaburo Ohashi ,  Tetsuo Kawamura ,  Yousuke Horiuchi ,  Takahiro Nagata ,  Tomoaki Terada ,  Toshiharu Tabata ,  Susumu Enomoto

    发明人： Hiroaki Takahashi ,  Sozaburo Ohashi ,  Tetsuo Kawamura ,  Yousuke Horiuchi ,  Takahiro Nagata ,  Tomoaki Terada ,  Toshiharu Tabata ,  Susumu Enomoto

    IPC分类号： H01M4/88

    CPC分类号： H01M4/96 ,  H01M4/8842 ,  H01M4/8882 ,  H01M4/921 ,  H01M4/926 ,  H01M2008/1095

    摘要： To enhance the activation of a catalyst comprising an alloy of platinum and cobalt, thereby providing an electrode catalyst for fuel cell whose battery output and fuel efficiency are high, and thereby providing a production process of the same.An electrode catalyst according to the present invention for fuel cell is an electrode catalyst for fuel cell in which catalytic particles comprising platinum and cobalt are loaded on a conductive support, and is characterized in that a compositional (molar) ratio of said catalytic particles is platinum:cobalt=3:1-5:1: In the range of platinum:cobalt=3:1-5:1, a high battery voltage is obtainable. When the proportion of platinum is less than platinum: cobalt=3:1, the elution of cobalt from out of catalyst increases. On the contrarily, when the proportion of platinum is more than platinum: cobalt=5:1, the catalytic activities become low.

    摘要翻译： 为了增强包含铂和钴的合金的催化剂的活化，从而为电池输出和燃料效率高的燃料电池提供电极催化剂，从而提供其生产方法。 根据本发明的用于燃料电池的电极催化剂是用于燃料电池的电极催化剂，其中包含铂和钴的催化颗粒负载在导电载体上，其特征在于所述催化颗粒的组成（摩尔比）为铂 ：钴= 3：1-5：1：在铂：钴= 3：1-5：1的范围内，可获得高电池电压。 当铂的比例小于铂：钴= 3：1时，钴从催化剂中的洗脱增加。 相反，当铂的比例大于铂：钴= 5：1时，催化活性变低。

    PRODUCTION PROCESS OF ELECTRODE CATALYST FOR FUEL CELL
    6.
    发明申请
    PRODUCTION PROCESS OF ELECTRODE CATALYST FOR FUEL CELL 有权
    燃料电极催化剂的生产工艺

    公开(公告)号：US20090099009A1

    公开(公告)日：2009-04-16

    申请号：US12239234

    申请日：2008-09-26

    申请人： Hiroaki Takahashi ,  Sozaburo Ohashi ,  Tetsuo Kawamura ,  Yousuke Horiuchi ,  Toshiharu Tabata ,  Tomoaki Terada ,  Takahiro Nagata ,  Susumu Enomoto

    发明人： Hiroaki Takahashi ,  Sozaburo Ohashi ,  Tetsuo Kawamura ,  Yousuke Horiuchi ,  Toshiharu Tabata ,  Tomoaki Terada ,  Takahiro Nagata ,  Susumu Enomoto

    IPC分类号： H01M4/88

    CPC分类号： H01M4/921 ,  H01M4/8842 ,  H01M4/8882 ,  H01M4/926 ,  H01M4/96 ,  H01M8/12 ,  H01M2008/1095 ,  Y02P70/56

    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，特别是其高电位施加引起的电压降较小的耐久特性。 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，贱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。