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1. 发明申请

WO2010136859A1 AIR-FUEL RATIO SENSOR 审中-公开
标题翻译：空燃比传感器
公开(公告)号：WO2010136859A1
公开(公告)日：2010-12-02
申请号：PCT/IB2010/000854
申请日：2010-04-15
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA , DENSO CORPORATION , NISHIJIMA, Hiroki , HIRABAYASHI, Takeshi , KONDO, Haruki , SUZUKI, Yasufumi
发明人： NISHIJIMA, Hiroki , HIRABAYASHI, Takeshi , KONDO, Haruki , SUZUKI, Yasufumi
IPC分类号： G01N27/407
CPC分类号： G01N27/4075
摘要： An air-fuel ratio sensor includes a solid electrolyte layer, a measuring electrode laminated on a first face of the solid electrolyte layer, a reference electrode laminated on a second face of the solid electrolyte layer which is different from the first face thereof, such that the reference electrode and the measuring electrode are opposed to each other with the solid electrolyte layer interposed therebetween, a porous diffusion resistance layer that permits gas to pass therethrough and covers the measuring electrode, and a catalyst layer including a catalyst metal and a base material on which the catalyst metal is supported. The catalyst layer permits gas to pass therethrough and covers the porous diffusion resistance layer. The catalyst metal is a platinum-palladium-rhodium alloy, and contains 2 to 9 mass% of rhodium when the overall amount of the catalyst layer is represented as 100 mass%.
摘要翻译：空燃比传感器包括固体电解质层，层压在固体电解质层的第一面上的测量电极，层压在与其第一面不同的固体电解质层的第二面上的参考电极，使得参考电极和测量电极彼此相对，固体电解质层彼此相对，允许气体通过并覆盖测量电极的多孔扩散电阻层和包含催化剂金属和基材的催化剂层在催化剂金属被负载。催化剂层允许气体通过并覆盖多孔扩散电阻层。催化剂金属是铂 - 铑 - 铑合金，当催化剂层的总量为100质量％时，含有2〜9质量％的铑。

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