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发明公开
CN1669645A 排气净化催化剂及其制造方法以及车用排气净化催化剂装置 无效 - 驳回

排气净化催化剂及其制造方法以及车用排气净化催化剂装置
摘要：
本发明涉及一种排气净化催化剂，通过使贵金属自身的活性提高，同时防止高温时的活性降低，从而使其在运转中发挥优良的性能。Pd载负在钙钛矿型Al复合氧化物上，上述Al复合氧化物为LnAl1－xMxO3(Ln：稀土元素)，上述 LnAl1－xMxO3中的元素M为1～5族和12～14族元素中的一种元素。
摘要（英）：

The exhaust-gas purifying catalyst contains palladium supported by perovskite-type aluminum complex oxide. The aluminum complex oxide has specific formula, and contains rare earth element and group I-V or group XII-XIV element. The exhaust-gas purifying catalyst contains palladium supported by perovskite-type aluminum complex oxide. The aluminum complex oxide has formula LnAl 1-xM xO 3, where Ln is rare earth element, M is I-V group element or XII-XIV group element and x is 0.02-0.3. Independent claims are included for the following: (1) manufacture of exhaust-gas purifying catalyst; and (2) exhaust-gas purifying catalytic apparatus for vehicles, containing the catalyst. The apparatus purifies the waste gas ejected from the vehicle.

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