公开(公告)号：US20240149260A1

公开(公告)日：2024-05-09

申请号：US18387616

申请日：2023-11-07

申请人： Nobusuke KABASHIMA ,  Toshio YAMAMOTO ,  Miho HATANAKA ,  Tetsuya SHINOZAKI

发明人： Nobusuke KABASHIMA ,  Toshio YAMAMOTO ,  Miho HATANAKA ,  Tetsuya SHINOZAKI

IPC分类号： B01J35/04 ,  B01D53/94 ,  B01J21/04 ,  B01J21/06 ,  B01J23/10 ,  B01J23/44 ,  B01J23/46 ,  B01J35/00 ,  F01N3/28

CPC分类号： B01J35/04 ,  B01D53/9472 ,  B01J21/04 ,  B01J21/066 ,  B01J23/10 ,  B01J23/44 ,  B01J23/46 ,  B01J35/0006 ,  F01N3/2803 ,  B01D2255/1023 ,  B01D2255/1025 ,  B01D2255/2061 ,  B01D2255/2063 ,  B01D2255/2065 ,  B01D2255/2068 ,  B01D2255/20715 ,  B01D2255/2092 ,  B01D2255/407 ,  B01D2255/9032 ,  B01D2255/9037 ,  B01D2255/908 ,  B01D2255/9202 ,  B01D2257/404 ,  B01D2257/702 ,  B01D2258/01 ,  F01N2370/02

摘要： The exhaust gas purification device includes a substrate, a first catalyst layer, and a second catalyst layer. The substrate includes an upstream end and a downstream end. The first catalyst layer contains first catalyst particles and lies on the substrate across a first region extending between the upstream end and a first position. The first position is at a first distance from the upstream end toward the downstream end. The second catalyst layer contains second catalyst particles and lies on the first catalyst layer across the first region. The second catalyst layer is provided with pores. Pore connectivity of the second catalyst layer is 5% to 35%. A mean value of areas of the pores of the second catalyst layer in a cross-sectional backscattered electron image of the second catalyst layer may be 0.7 μm2 to 9.0 μm2.