CATALYST CARRIER FOR EXHAUST GAS PURIFICATION AND CATALYST FOR EXHAUST GAS PURIFICATION
    3.
    发明公开
    CATALYST CARRIER FOR EXHAUST GAS PURIFICATION AND CATALYST FOR EXHAUST GAS PURIFICATION 审中-公开
    KATALYSATORTRÄGERZUR ABGASREINIGUNG UND KATALYSATOR ZUR ABGASREINIGUNG

    公开(公告)号:EP2754489A1

    公开(公告)日:2014-07-16

    申请号:EP12830154.6

    申请日:2012-08-27

    摘要: The invention provides an exhaust gas purification catalyst carrier which includes a phosphate salt represented by formula: MPO 4 (wherein M represents Y, La, or Al) or a zirconium phosphate represented by formula ZrP 2 O 7 ; an exhaust gas purification catalyst containing a noble metal at least containing Rh and supported on the carrier; and an exhaust gas purification catalyst product having a catalyst support made of a ceramic or metallic material, and a layer of the exhaust gas purification catalyst, the layer being supported on the catalyst support.

    摘要翻译: 本发明提供一种废气净化催化剂载体,其包含由式MPO 4(其中M表示Y,La或Al)或由式ZrP 2 O 7表示的磷酸锆代表的磷酸盐; 含有至少含有Rh并载持在载体上的贵金属的废气净化催化剂; 以及具有由陶瓷或金属材料制成的催化剂载体的废气净化催化剂产物和排出气体净化催化剂层,所述层被负载在催化剂载体上。

    POWDER FOR CATALYSTS AND CATALYST FOR EXHAUST GAS PURIFICATION

    公开(公告)号:EP3378557A1

    公开(公告)日:2018-09-26

    申请号:EP16866309.4

    申请日:2016-11-15

    摘要: A catalyst powder according to the present invention is a catalyst powder that includes: a core portion that contains ceria and zirconia; and a surface layer portion that is located on the core portion and contains ceria and zirconia. The ratio (M 2 /M 1 ) is 0.30 or more and 0.95 or less, the ratio (M 2 /M 1 ) being the ratio of a mole fraction M 2 (mol%) of cerium in the surface layer portion measured using X-ray photoelectron spectroscopy to a mole fraction M 1 (mol%) of cerium in the entire powder. It is preferable that the ratio (M 4/2 /M 3/1 ) between M 3/1 and M 4 / 2 is 1.1 or more and 5.0 or less, wherein M 3/1 (= M 3 /M 1 ) represents the ratio between a mole fraction M 3 (mol%) of zirconium in the entire powder and a mole fraction M 1 (mol%) of cerium in the entirety of the powder, and M 4 / 2 (= M 4 /M 2 ) represents the ratio between a mole fraction M 4 (mol%) of zirconium measured using X-ray photoelectron spectroscopy and a mole fraction M 2 (mol%) of cerium measured using X-ray photoelectron spectroscopy.