公开(公告)号：US20180252139A1

公开(公告)日：2018-09-06

申请号：US15911947

申请日：2018-03-05

申请人： KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO

发明人： Miho HATANAKA ,  Akihiko SUDA

IPC分类号： F01N3/28 ,  B01J37/02 ,  B01D53/94 ,  B01J35/00 ,  B01J21/06 ,  F01N3/20 ,  B01J37/08

CPC分类号： F01N3/2803 ,  B01D53/945 ,  B01D2255/2061 ,  B01D2255/2063 ,  B01D2255/2066 ,  B01D2255/2068 ,  B01D2255/407 ,  B01D2255/908 ,  B01D2255/9205 ,  B01J21/066 ,  B01J23/002 ,  B01J23/007 ,  B01J23/10 ,  B01J35/0006 ,  B01J35/023 ,  B01J35/1038 ,  B01J35/1061 ,  B01J35/1066 ,  B01J35/1071 ,  B01J35/1076 ,  B01J37/0036 ,  B01J37/0045 ,  B01J37/0072 ,  B01J37/0234 ,  B01J37/0236 ,  B01J37/0248 ,  B01J37/04 ,  B01J37/084 ,  B01J37/088 ,  B01J2523/00 ,  F01N3/0814 ,  F01N3/0864 ,  F01N3/2013 ,  F01N2370/02 ,  F01N2570/16 ,  B01J2523/31 ,  B01J2523/36 ,  B01J2523/3725 ,  B01J2523/48 ,  B01J2523/822

摘要： An oxygen storage/release material includes: a ceria-zirconia composite oxide porous body that has at least one ordered phase of a pyrochlore phase and a κ phase, and that has a central pore diameter of 70 nm to 1 μm as measured by a mercury penetration method, and in which a cumulative pore volume of pores that each have a pore diameter in the range of 0.5 times to 2 times the central pore diameter is 40% or more of the cumulative pore volume of pores that each have a pore diameter in the range of 10 nm to 10 μm as measured by the mercury penetration method.

公开(公告)号：US20160279573A1

公开(公告)日：2016-09-29

申请号：US15061102

申请日：2016-03-04

申请人： KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO

发明人： Miho HATANAKA ,  Toshiyuki TANAKA

IPC分类号： B01D53/94 ,  B01J21/06 ,  B01J23/10 ,  B01J23/58 ,  B01J23/42 ,  B01J23/44

CPC分类号： B01D53/9481 ,  B01D53/9422 ,  B01D2255/1021 ,  B01D2255/1023 ,  B01D2255/1025 ,  B01D2255/2042 ,  B01D2255/2065 ,  B01D2255/20707 ,  B01D2255/20715 ,  B01D2255/2092 ,  B01D2255/40 ,  B01D2255/91 ,  B01J21/066 ,  B01J23/10 ,  B01J23/42 ,  B01J23/44 ,  B01J23/58 ,  B01J23/63 ,  B01J35/0006 ,  B01J35/006 ,  B01J35/1019 ,  B01J37/0203 ,  B01J37/0205 ,  B01J37/0248 ,  B01J37/03 ,  B01J2523/00 ,  F01N3/0814 ,  F01N3/0842 ,  F01N3/10 ,  F01N3/2803 ,  F01N2330/00 ,  F01N2370/02 ,  F01N2510/068 ,  B01J2523/31 ,  B01J2523/3712 ,  B01J2523/47 ,  B01J2523/48 ,  B01J2523/824 ,  B01J2523/828 ,  B01J2523/25 ,  B01J2523/822

摘要： A catalyst for purification of exhaust gas, comprising a first catalyst comprising: a first catalyst support comprising a first composite oxide composed of alumina, zirconia, and titania, and ceria supported on a surface of the first composite oxide in an amount of 0.5 to 10 parts by mass relative to 100 parts by mass of the first composite oxide; and a first noble metal supported on a surface of the first catalyst support in an amount of 0.05 to 5.0 parts by mass in terms of metal relative to 100 parts by mass of the first catalyst support.

摘要翻译： 提供了一种用于净化废气的催化剂，其包含负载在催化剂载体上的贵金属，所述催化剂载体包含负载在由氧化铝，氧化锆和二氧化钛组成的复合氧化物的表面上的预定量的二氧化铈，显示出高耐热性和 催化活性高; 此外，包括用于净化废气的催化剂和NOx储存材料（例如碱金属和碱土金属）的NOx储存还原催化剂在还原处理期间促进硫解吸，容易回收催化性能，并显示出 即使当NOx吸留还原催化剂暴露于硫时，NOx净化活性也高。