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    METAL PASTE FOR GAS SENSOR ELECTRODE FORMATION
    2.
    发明公开
    METAL PASTE FOR GAS SENSOR ELECTRODE FORMATION 有权
    METALLPASTE ZUR GASSENSORELEKTRODENHERSTELLUNG

    公开(公告)号：EP2950091A4

    公开(公告)日：2016-09-21

    申请号：EP14743576

    申请日：2014-01-27

    申请人： TANAKA PRECIOUS METAL IND

    发明人： OKAMOTO NOBUHISA ,  HOSOI TAKUYA ,  AKIYAMA NOBUYUKI ,  NAKAI AKIHIRO ,  ONOZUMI SHIGEKAZU

    IPC分类号： G01N27/409 ,  G01N27/407 ,  G01N27/41 ,  G01N27/416

    CPC分类号： C09D5/24 ,  C09D5/34 ,  G01N27/304 ,  G01N27/404 ,  G01N27/4045 ,  G01N27/4073 ,  G01N27/4075 ,  G01N27/4141 ,  H01B1/16

    摘要： To be provided is a metal paste from which an electrode having high electrode activity as a sensor electrode of various gas sensors can be produced. The present invention is a metal paste for forming a gas sensor electrode obtained by dispersing a conductive particle including Pt or a Pt alloy and a ceramic powder including zirconia or stabilized zirconia, or any of zirconia and stabilized zirconia and one or more oxides of La, Ce, Pr, Nd, Sm, and Hf in a solvent, the metal paste further including an inorganic oxide particle containing alumina and an insoluble particle that is insoluble in the solvent, in which 0.5 or more to 3.0 mass% or less of the inorganic oxide particle and 1.0 to 5.0 mass% of the insoluble particle are dispersed based on the mass of the solid content of the conductive particle, the ceramic powder, the inorganic oxide particle, and the insoluble particle.

    摘要翻译： 可以提供一种金属膏，可以制造具有高电极活性的电极作为各种气体传感器的传感器电极。 本发明是一种用于形成气体传感器电极的金属膏，其通过将包含Pt或Pt合金的导电颗粒和包括氧化锆或稳定的氧化锆或任何氧化锆和稳定的氧化锆的陶瓷粉末和一种或多种La， Ce，Pr，Nd，Sm和Hf中的至少一种，所述金属糊还包含不溶于所述溶剂的氧化铝和不溶性粒子的无机氧化物粒子，所述无机氧化物粒子的摩尔比为0.5〜3.0质量％ 基于导电性粒子，陶瓷粉末，无机氧化物粒子和不溶性粒子的固体成分的质量，分散氧化物粒子和1.0〜5.0质量％的不溶性粒子。

    SENSOR ELECTRODE, MANUFACTURING METHOD THEREOF, AND METAL PASTE FOR ELECTRODE FORMATION
    3.
    发明公开
    SENSOR ELECTRODE, MANUFACTURING METHOD THEREOF, AND METAL PASTE FOR ELECTRODE FORMATION 有权
    SENSORELEKTRODE，HERSTELLUNGSVERFAHRENDAFÜRUND METALLPASTE ZUR ELEKTRODENBILDUNG

    公开(公告)号：EP2902775A4

    公开(公告)日：2016-08-03

    申请号：EP13840644

    申请日：2013-09-17

    申请人： TANAKA PRECIOUS METAL IND

    发明人： OKAMOTO NOBUHISA ,  HOSOI TAKUYA ,  SAKAIRI KOICHI

    IPC分类号： G01N27/409 ,  G01N27/41 ,  G01N27/419 ,  H01B1/00 ,  H01B1/20 ,  H01B13/00

    CPC分类号： G01N27/4075 ,  C09D5/24 ,  G01N27/304 ,  H01B1/22 ,  H01B13/0016

    摘要： The present invention relates to a gas sensor electrode including a conductive particle phase made of Pt or Pt alloy and a ceramic particle phase being mixed and dispersed, wherein a rate of content of the ceramic particle phase is 6.0 to 22.0 mass%, and a void ratio is 2.5 to 10.0%, and a dispersion degree of the conductive particle phase per length of 25 µm on the electrode surface is 0.60 to 0.85 µm, and a dispersion degree of the conductive particle phase in the electrode cross section per length of 100 µm in a direction parallel to the electrode surface is 2.0 to 4.0 µm. This electrode can be produced by firing a metal paste made by dispersing, in a solvent, a conductive particle having a core/shell structure in which a core particle such as Pt is covered with a ceramic shell and ceramic powder. The gas sensor electrode according to the present invention has a high electrode activity.

    摘要翻译： 本发明涉及一种气体传感器电极，包括由Pt或Pt合金制成的导电颗粒相和混合分散的陶瓷颗粒相，其中陶瓷颗粒相的含量为6.0至22.0质量％，空隙 比例为2.5〜10.0％，电极表面的每个长度为25μm的导电性粒子相的分散度为0.60〜0.85μm，导电性粒子相在每100cm长的电极截面中的分散度 在平行于电极表面的方向上为2.0至4.0μm。 该电极可以通过在溶剂中分散由陶瓷壳和陶瓷粉末覆盖有Pt的核心粒子的核/壳结构的导电性粒子而制成的金属糊来制造。 根据本发明的气体传感器电极具有高电极活性。