公开(公告)号：US10159960B2

公开(公告)日：2018-12-25

申请号：US15334109

申请日：2016-10-25

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Ming Yang ,  Ryan J. Day ,  Se H. Oh ,  Gongshin Qi ,  Wei Li

IPC: B01J23/78 ,  B01J37/02 ,  B01J37/08 ,  B01D53/94 ,  F01N3/28

Abstract: A catalytic converter includes a catalyst. The catalyst includes a non-modified metal oxide support and platinum group metal (PGM) complexes atomically dispersed on the non-modified metal oxide support. The PGM complexes include a PGM species selected from the group consisting of an atom of a platinum group metal, a cluster including from 2 atoms to less than 10 atoms of the platinum group metal, and combinations thereof. An alkali metal or an alkaline earth metal is bonded to the PGM species. The alkali or alkaline earth metal is part of a structure including oxygen atoms and hydrogen atoms.

公开(公告)号：US09827562B2

公开(公告)日：2017-11-28

申请号：US15247506

申请日：2016-08-25

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Gongshin Qi ,  Ryan J. Day ,  Se H. Oh ,  Xingcheng Xiao ,  Ming Yang

IPC: B01D53/94 ,  B01J21/04 ,  B01J23/44 ,  B01J33/00 ,  B01J35/00 ,  B01J35/02 ,  B01J37/02 ,  B01J37/18 ,  C23C16/455 ,  F01N3/10

CPC classification number: B01J33/00 ,  B01D53/88 ,  B01D53/944 ,  B01D53/945 ,  B01D2251/2067 ,  B01D2255/1023 ,  B01D2255/2092 ,  B01D2255/90 ,  B01D2258/012 ,  B01J21/04 ,  B01J23/44 ,  B01J35/0006 ,  B01J35/026 ,  B01J37/0221 ,  B01J37/0248 ,  B01J37/18 ,  B01J37/349 ,  C23C16/45555 ,  F01N3/101 ,  F01N3/103 ,  F01N3/2828 ,  F01N2330/06 ,  F01N2330/14 ,  F01N2370/00 ,  Y02T10/22

Abstract: A catalytic converter includes a catalyst. The catalyst includes a support, platinum group metal (PGM) particles dispersed on the support, and a barrier formed on the support. The barrier is disposed between a first set of the PGM particles and a second set of the PGM particles to suppress aging of the PGM particles.

公开(公告)号：US20170095806A1

公开(公告)日：2017-04-06

申请号：US15247506

申请日：2016-08-25

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Gongshin Qi ,  Ryan J. Day ,  Se H. Oh ,  Xingcheng Xiao ,  Ming Yang

IPC: B01J33/00 ,  B01J21/04 ,  B01J35/00 ,  F01N3/10 ,  B01J37/02 ,  B01J37/18 ,  B01D53/94 ,  C23C16/455 ,  B01J23/44 ,  B01J35/02

CPC classification number: B01J33/00 ,  B01D53/88 ,  B01D53/944 ,  B01D53/945 ,  B01D2251/2067 ,  B01D2255/1023 ,  B01D2255/2092 ,  B01D2255/90 ,  B01D2258/012 ,  B01J21/04 ,  B01J23/44 ,  B01J35/0006 ,  B01J35/026 ,  B01J37/0221 ,  B01J37/0248 ,  B01J37/18 ,  B01J37/349 ,  C23C16/45555 ,  F01N3/101 ,  F01N3/103 ,  F01N3/2828 ,  F01N2330/06 ,  F01N2330/14 ,  F01N2370/00 ,  Y02T10/22

Abstract: A catalytic converter includes a catalyst. The catalyst includes a support, platinum group metal (PGM) particles dispersed on the support, and a barrier formed on the support. The barrier is disposed between a first set of the PGM particles and a second set of the PGM particles to suppress aging of the PGM particles.

公开(公告)号：US10695749B2

公开(公告)日：2020-06-30

申请号：US16056973

申请日：2018-08-07

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Xingcheng Xiao ,  Ming Yang ,  Gongshin Qi ,  Wei Li

IPC: B01J23/02 ,  B01J23/10 ,  B01J23/38 ,  B01J23/40 ,  B01J23/42 ,  B01J23/44 ,  B01J23/46 ,  B01J23/48 ,  B01J23/58 ,  B01J23/63 ,  B01J23/66 ,  B01J23/76 ,  B01J23/78 ,  B01J23/83 ,  B01J23/89 ,  B01J33/00 ,  B01J35/00 ,  B01J35/02 ,  B01J35/04 ,  B01J21/04 ,  B01J21/06 ,  B01J21/08 ,  B01J21/10 ,  B01J21/12 ,  B01J21/14 ,  B01D53/94

Abstract: Sinter-resistant catalyst systems include a catalytic substrate comprising a plurality of metal catalytic nanoparticles bound to a metal oxide catalyst support, and a coating of oxide nanoparticles disposed on the metal catalytic nanoparticles and optionally on the metal oxide support. The oxide nanoparticles comprise one or more lanthanum oxides and optionally one or more barium oxides, and additionally one or more oxides of aluminum, cerium, zirconium, titanium, silicon, magnesium, zinc, iron, strontium, and calcium. The metal catalytic nanoparticles can include ruthenium, rhodium, palladium, osmium, iridium, and platinum, rhenium, copper, silver, and/or gold. The metal oxide catalyst support can include one or more metal oxides selected from the group consisting of Al2O3, CeO2, ZrO2, TiO2, SiO2, La2O3, MgO, and ZnO. The coating of oxide nanoparticles is about 0.1% to about 50% lanthanum and barium oxides. The oxide nanoparticles can further include one or more oxides of magnesium and/or cobalt.

公开(公告)号：US20180214859A1

公开(公告)日：2018-08-02

申请号：US15418214

申请日：2017-01-27

Applicant: GM Global Technology Operations LLC

Inventor： Gongshin Qi ,  Ming Yang ,  Ryan J. Day ,  Xingcheng Xiao ,  Wei Li

IPC: B01J37/02 ,  B01J21/04 ,  B01J23/44 ,  B01J37/03 ,  B01J35/04 ,  B01J37/00 ,  B01J37/08

CPC classification number: B01J37/0244 ,  B01J21/04 ,  B01J23/44 ,  B01J23/63 ,  B01J23/83 ,  B01J35/0013 ,  B01J35/04 ,  B01J37/009 ,  B01J37/0236 ,  B01J37/0242 ,  B01J37/035 ,  B01J37/08

Abstract: Methods of preparing a sinter-resistant catalyst include forming a dual coating system. A surface of a particulate catalyst support contacts a first liquid precursor including a metal salt with an element selected from the group consisting of: aluminum (Al), cerium (Ce), zirconium (Zr), titanium (Ti), silicon (Si), magnesium (Mg), zinc (Zn), and combinations thereof. The first liquid precursor precipitates or is adsorbed as an ion on a portion of the surface forming a first coating including a porous metal oxide on the surface. The surface may be contacted with a second liquid precursor including a metal oxide sol including a metal selected from the group consisting of: aluminum (Al), cerium (Ce), zirconium (Zr), iron (Fe), titanium (Ti), silicon (Si), and combinations thereof. A second coating is formed from the second liquid precursor on a portion of the surface to create the sinter-resistant catalyst system.

公开(公告)号：US10035133B2

公开(公告)日：2018-07-31

申请号：US15334164

申请日：2016-10-25

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Ming Yang ,  Xingcheng Xiao ,  Ryan J. Day ,  Gongshin Qi

IPC: B01J21/04 ,  B01J21/06 ,  B01J21/08 ,  B01J21/12 ,  B01J23/02 ,  B01J23/04 ,  B01J23/06 ,  B01J23/10 ,  B01J23/40 ,  B01J23/42 ,  B01J23/44 ,  B01J23/46 ,  B01J23/58 ,  B01J37/02 ,  B01J37/08

CPC classification number: B01J23/58 ,  B01D53/94 ,  B01D53/944 ,  B01D2255/1023 ,  B01D2255/2042 ,  B01D2255/2092 ,  B01J35/0006 ,  B01J35/0013 ,  B01J35/0086 ,  B01J37/0201 ,  B01J37/0236 ,  B01J37/024 ,  B01J37/08

Abstract: A catalytic converter includes a catalyst. The catalyst includes a metal oxide support and platinum group metal (PGM) complexes atomically dispersed on the metal oxide support. The PGM complexes include a PGM species selected from the group consisting of an atom of a platinum group metal, a cluster including from 2 atoms to less than 10 atoms of the platinum group metal, a nanoparticle including 10 or more atoms of the platinum group metal, and combinations thereof. An alkali metal or an alkaline earth metal is bonded to the PGM species. The alkali or alkaline earth metal is part of a structure including oxygen atoms and hydrogen atoms. A barrier is disposed between a first PGM complex and a second PGM complex.

公开(公告)号：US20180185831A1

公开(公告)日：2018-07-05

申请号：US15399151

申请日：2017-01-05

Applicant: GM Global Technology Operations LLC

Inventor： Ming Yang ,  Gongshin Qi ,  Ryan J. Day ,  Xingcheng Xiao ,  Wei Li

IPC: B01J37/02 ,  B01J21/04 ,  B01J23/42 ,  B01J23/44 ,  B01J37/08 ,  B01J35/00

CPC classification number: B01J35/0013 ,  B01J23/42 ,  B01J23/44 ,  B01J35/0033 ,  B01J37/08

Abstract: Catalysts that are resistant to high-temperature sintering and methods for preparing such catalysts that are resistant to sintering at high temperatures are provided. The catalyst may be prepared by contacting a solution comprising an ionic species with one or more charged surface regions of a catalyst support. A surface of the catalyst support further includes one or more catalyst particles disposed adjacent to the one or more charged surface regions. The ionic species has a first charge opposite to a second charge of the one or more charged surface regions. Next, the ionic species is associated with the one or more charged surface regions to form a layer on the one or more select surface regions. The layer is calcined to generate a coating comprising metal oxide on the one or more select surface regions, where the coating is formed adjacent to the one or more catalyst particles.

公开(公告)号：US20210394159A1

公开(公告)日：2021-12-23

申请号：US16904724

申请日：2020-06-18

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Ming Yang ,  Se H. Oh ,  Wei Li

IPC: B01J23/46 ,  F01N3/10 ,  F01N3/28 ,  B01J35/00 ,  B01J23/42 ,  B01J37/02

Abstract: Bimetallic three-way catalyst devices include a support body, one or more Rh bulk deposits disposed on the support body, and a plurality of Pt atomic clusters disposed on the surface of each of the Rh bulk deposits. Substantially no Pt is deposited on the support body. At least 85% by weight of the Pt atomic clusters comprise up to 10 atoms and the maximum Pt atomic cluster size is 200 Pt atoms. The combined loading of Rh and Pt can be less than 1.5% by weight relative to the weight of the support body. The molar ratio of Rh in a bulk Rh deposit to Pt disposed on the surface of that deposit is at least 5:1.

公开(公告)号：US20210170368A1

公开(公告)日：2021-06-10

申请号：US16704092

申请日：2019-12-05

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Ming Yang ,  Se H. Oh ,  Gongshin Qi ,  Wei Li

IPC: B01J23/63 ,  B01J21/04 ,  B01J23/10 ,  B01J23/46 ,  B01J23/72 ,  B01J23/83 ,  B01J37/02 ,  B01J37/03 ,  B01J37/10 ,  B01J35/10 ,  B01D53/94

Abstract: Methods for preparing catalytic systems include passivating a gamma-phase alumina support body to yield a theta-phase alumina support body and applying catalytic metal to passivated theta-phase alumina support body. Passivating can include heating, optionally in the presence of steam. The gamma-phase alumina can be lanthanum-doped gamma-phase alumina and can be about 0.1-55 wt. % lanthanum. The catalytic metal can include rhodium, copper, or nickel. The catalytic metal can be rhodium or nickel, and the catalytic metal can be applied to the passivated theta-phase alumina support body at a loading of about 0.1-10 wt. %. The catalytic metal can be copper, and the catalytic metal can be applied to the passivated theta-phase alumina support body at a loading of about 0.1-30 wt. %. The gamma-phase alumina support body can be at least about 90 wt. % gamma-phase alumina. The passivated theta-phase alumina support body can be at least about 80 wt. % theta-phase alumina.

公开(公告)号：US10753247B2

公开(公告)日：2020-08-25

申请号：US15902464

申请日：2018-02-22

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Ming Yang ,  Ryan J. Day ,  Xingcheng Xiao ,  Gongshin Qi ,  Wei Li

IPC: B01J23/42 ,  B01J23/44 ,  B01J23/46 ,  B01J23/50 ,  B01J23/52 ,  B01J23/75 ,  B01J23/755 ,  F01N3/10 ,  C01B32/50 ,  C01B21/04 ,  C01B32/40

Abstract: Bimetallic oxidation catalyst devices include a support body, one or more metal A bulk deposits disposed on the support body, and a plurality of metal B atomic clusters disposed on the surface of each of the metal A bulk deposits. Metal A and metal B are different metals each selected from the group consisting of platinum group metals (PGM), Ag, Au, Ni, Co, and Cu, and substantially no metal B is deposited on the support body. At least 85% by weight of the metal B atomic clusters comprise up to 10 atoms and the maximum metal B atomic cluster size is 200 metal B atoms. The combined loading of metal A and metal B can be less than 1.5% by weight relative to the weight of the support body. Metal A can include Pd, Rh, Rh, or Pd, and metal B can include Pt, Pt, Ag, or Ag.