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CN105312052A 废气净化催化剂，其制备方法和使用它的废气净化方法 无效 - 撤回

废气净化催化剂，其制备方法和使用它的废气净化方法
摘要：
废气净化催化剂包含：由氧化铝和氧化钇形成的载体；和负载在载体上的铂和钯。载体中的氧化钇含量为2质量％至15质量％。铂:钯含量比为1-10质量比。至少一部分铂和至少一部分钯构成固溶体。包含铂、钯和固溶体的晶体的(311)平面衍射峰以81.5°或更高存在于81.2°至82.1°的范围内，衍射峰通过X射线衍射方法使用CuKα射线确定。
摘要（英）：

An exhaust gas purification catalyst includes: a support formed of alumina and yttria; and platinum and palladium that are supported on the support. An yttria content in the support is 2 mass% to 15 mass%. A content ratio of the platinum to the palladium is in a range of 1 to 10 by mass ratio. At least a portion of the platinum and at least a portion of the palladium constitute a solid solution. A diffraction peak of a (311) plane of a crystal including the platinum, the palladium and the solid solution is present at 81.5 DEG or higher in a range of 81.2 DEG to 82.1 DEG , the diffraction peak being identified by an X-ray diffraction method using CuK[alpha]rays.

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