公开(公告)号：US12055083B2

公开(公告)日：2024-08-06

申请号：US17250732

申请日：2018-08-27

Applicant: BASF Corporation

Inventor： Fudong Liu ,  Michel Deeba

IPC: B01J21/06 ,  B01J23/02 ,  B01J23/10 ,  B01J23/40 ,  B01J23/42 ,  B01J23/44 ,  B01J23/46 ,  B01J23/58 ,  B01J23/63 ,  B01J35/04 ,  B01J35/10 ,  B01J35/56 ,  B01J35/60 ,  B01J37/02 ,  B01J37/08 ,  B01J37/10 ,  F01N3/035 ,  F01N3/10

CPC classification number: F01N3/101 ,  B01J21/066 ,  B01J23/10 ,  B01J23/44 ,  B01J23/464 ,  B01J35/56 ,  B01J35/60 ,  B01J37/0207 ,  B01J37/082 ,  B01J37/10 ,  F01N3/035 ,  F01N2250/02

Abstract: This disclosure is directed to catalyst compositions, catalytic articles for purifying exhaust gas emissions and methods of making and using the same. In particular, the disclosure relates to a catalytic article including a catalytic material on a substrate, wherein the catalytic material has a first layer and a second layer. The first layer includes a platinum group metal (PGM) component impregnated on a porous support material; and the second layer includes a rhodium component impregnated on a support material, wherein the support material is a composite material including zirconia doped with baria, alumina, or combinations thereof, wherein the zirconia-based support material includes zirconia in an amount from about 80 to about 99 wt. %.

公开(公告)号：US11801491B1

公开(公告)日：2023-10-31

申请号：US17725828

申请日：2022-04-21

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC ,  University of Central Florida Research Foundation, Inc. ,  BASF Corporation

Inventor： Yuntao Gu ,  Fudong Liu ,  Wei Li ,  Shaohua Xie ,  Yuejin Li ,  Xiaolai Zheng

IPC: B01J21/04 ,  B01J23/10 ,  B01J23/44 ,  B01J23/63 ,  B01J35/04 ,  B01J37/02 ,  F01N3/10 ,  B01J6/00

CPC classification number: B01J23/44 ,  B01J6/001 ,  B01J21/04 ,  B01J23/10 ,  B01J37/0201 ,  B01J37/0215 ,  B01J37/0236 ,  F01N3/101 ,  F01N2570/10 ,  F01N2570/12 ,  F01N2570/14

Abstract: A three-way catalyst for reduced palladium loading is provided. The catalyst includes an inert substrate and a palladium catalyst material coating the substrate. The palladium catalyst material includes a support material formed from one of 10% CeO2/Al2O3, 20% CeO2—Al2O3 (20CeAlOy), 30% CeO2—Al2O3 (30CeAlOy), Al2O3, and MOx-Al2O3, wherein M is one of copper, iron, manganese, titanium, zirconium, magnesium, strontium, and barium. The palladium catalyst material includes a layer of CeO2 material disposed upon the support material, wherein the layer of CeO2 material is dispersed on a surface of the support material. The palladium catalyst material includes an active component including a layer of praseodymium oxide particles dispersed across the surface of the layer of CeO2 material and a layer of palladium particles disposed upon and dispersed across the surface of the layer of CeO2 material at locations each corresponding to a respective location of each of the praseodymium particles.

公开(公告)号：US20230338928A1

公开(公告)日：2023-10-26

申请号：US17725828

申请日：2022-04-21

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC ,  University of Central Florida ,  BASF Corporation

Inventor： Yuntao Gu ,  Fudong Liu ,  Wei Li ,  Shaohua Xie ,  Yuejin Li ,  Xiaolai Zheng

IPC: B01J23/44 ,  B01J23/10 ,  B01J21/04 ,  B01J6/00 ,  B01J37/02 ,  F01N3/10

CPC classification number: B01J23/44 ,  B01J23/10 ,  B01J21/04 ,  B01J6/001 ,  B01J37/0201 ,  B01J37/0215 ,  B01J37/0236 ,  F01N3/101 ,  F01N2570/12 ,  F01N2570/14 ,  F01N2570/10

Abstract: A three-way catalyst for reduced palladium loading is provided. The catalyst includes an inert substrate and a palladium catalyst material coating the substrate. The palladium catalyst material includes a support material formed from one of 10% CeO2/Al2O3, 20% CeO2—Al2O3 (20CeAlOy), 30% CeO2—Al2O3 (30CeAlOy), Al2O3, and MOx-Al2O3, wherein M is one of copper, iron, manganese, titanium, zirconium, magnesium, strontium, and barium. The palladium catalyst material includes a layer of CeO2 material disposed upon the support material, wherein the layer of CeO2 material is dispersed on a surface of the support material. The palladium catalyst material includes an active component including a layer of praseodymium oxide particles dispersed across the surface of the layer of CeO2 material and a layer of palladium particles disposed upon and dispersed across the surface of the layer of CeO2 material at locations each corresponding to a respective location of each of the praseodymium particles.

公开(公告)号：US20200347763A1

公开(公告)日：2020-11-05

申请号：US16758623

申请日：2018-08-27

Applicant: BASF CORPORATION

Inventor： Fudong Liu ,  Michel Deeba

IPC: F01N3/10 ,  B01J23/46 ,  B01J6/00 ,  B01J35/04 ,  B01J37/02 ,  F01N3/28

Abstract: The present disclosure generally provides catalyst compositions, articles and methods for reducing levels of HC, CO and NOx in an exhaust gas stream using the catalyst compositions and catalytic articles. The compositions, which are doped with niobium oxide, significantly improve the performance of a three-way catalyst when used as the rhodium support while strictly controlling the amount of precious metal loading.

公开(公告)号：US11131225B2

公开(公告)日：2021-09-28

申请号：US16642707

申请日：2018-08-27

Applicant: BASF Corporation

Inventor： Fudong Liu ,  Michel Deeba

IPC: F01N3/10 ,  B01J23/46 ,  B01J35/04 ,  B01J37/02 ,  F01N3/08 ,  B01J21/04 ,  B01J21/06

Abstract: Described are three-way conversion (TWC) catalytic articles effective to abate hydrocarbons (HCs), carbon monoxide (CO), and nitrogen oxides (NOx) from an engine exhaust gas containing phosphorous impurities. The disclosed catalytic article has a layered catalytic material, wherein the first layer of the catalytic material is disposed directly on the substrate and a second layer is disposed on top of the first layer. The second layer includes phosphorus resistant materials that prevent catalytic poisoning of the catalytic article by the phosphorous impurities. In particular, the second layer includes a phosphorus trap material having an alkaline earth metal component and a rhodium component impregnated on a phosphorus-resistant support material.