Catalyst powder, exhaust gas purifying catalyst, and method of producing the catalyst powder
    15.
    发明申请
    Catalyst powder, exhaust gas purifying catalyst, and method of producing the catalyst powder 失效
    催化剂粉末,废气净化催化剂,以及催化剂粉末的制造方法

    公开(公告)号:US20070155626A1

    公开(公告)日:2007-07-05

    申请号:US10586533

    申请日:2005-02-08

    IPC分类号: B01J23/38

    摘要: A method of producing catalyst powder of the present invention has a step of precipitating any one of a noble metal particle (5) and a transition metal particle (10) in a reversed micelle (1); a step of precipitating, in the reversed micelle (1) in which any one of the noble metal particle (5) and the transition metal particle (10) is precipitated, a porous support material (7) which supports the noble metal particle (5) and the transition metal particle (10); and a step of precipitating the other of the noble metal particle (5) and the transition metal particle (10) in the reversed micelle (1) in which any one of the noble metal particle (5) and the transition metal particle (10) is precipitated. By this method, it is possible to obtain catalyst powder capable of maintaining initial purification performance thereof even if being exposed to the high temperature.

    摘要翻译: 本发明的催化剂粉末的制造方法具有使反胶束(1)中的贵金属粒子(5)和过渡金属粒子(10)中的任一种析出的工序。 在贵金属粒子(5)和过渡金属粒子(10)中的任何一个析出的反胶束(1)中析出支撑贵金属粒子(5)的多孔性支撑体(7)的步骤 )和过渡金属颗粒(10); 以及使贵金属粒子(5)和过渡金属粒子(10)中的任何一个的反胶束(1)中的另一方的析出贵金属粒子(5)和过渡金属粒子(10) 沉淀。 通过该方法,即使暴露于高温也能够得到能够保持其初始净化性能的催化剂粉末。