Title:
NOVEL PGM NANOPARTICLES TWC CATALYSTS FOR GASOLINE EXHAUST GAS APPLICATIONS
Document Type and Number:
WIPO Patent Application WO/2020/226140
Kind Code:
A1
Abstract:
A three-way catalyst article, and its use in an exhaust system for internal combustion engines, is disclosed. The catalyst article for treating exhaust gas comprising: a substrate; and a first catalytic region on the substrate; wherein the first catalytic region comprises a first platinum group metal (PGM) component and a first inorganic oxide, wherein the first PGM component comprises PGM nanoparticles, wherein the PGM nanoparticles have no more than 100 PGM atoms, and wherein the PGM nanoparticles have a mean particle size of 1 nm to 10 nm with a standard deviation (SD) no more than 1 nm.
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Inventors:
NAGAOKA SHUHEI (JP)
Application Number:
PCT/JP2020/018433
Publication Date:
November 12, 2020
Filing Date:
May 01, 2020
Export Citation:
Assignee:
JOHNSON MATTHEY PLC (GB)
International Classes:
B01D53/94; B01J23/63; B01J35/00; B01J35/04; F01N3/10
Foreign References:
| US20160059216A1 | 2016-03-03 | |||
| DE102017124761A1 | 2018-04-26 | |||
| US20190015781A1 | 2019-01-17 | |||
| JP2017200674A | 2017-11-09 |
Other References:
MIURA ET AL., SAE TECHNICAL PAPER 2015-01-1005
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, vol. 121, no. 13, 1999, pages 3214 - 3217
JOURNAL OF MATERIALS CHEMISTRY A, vol. 5, 2017, pages 4923 - 4931
CATALYSIS SCIENCE & TECHNOLOGY, vol. 1, 2011, pages 1490 - 1495
J. PHYS. CHEM. C, 2017, pages 11002 - 11009
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, vol. 121, no. 13, 1999, pages 3214 - 3217
JOURNAL OF MATERIALS CHEMISTRY A, vol. 5, 2017, pages 4923 - 4931
CATALYSIS SCIENCE & TECHNOLOGY, vol. 1, 2011, pages 1490 - 1495
J. PHYS. CHEM. C, 2017, pages 11002 - 11009
Attorney, Agent or Firm:
SONODA & KOBAYASHI INTELLECTUAL PROPERTY LAW (JP)
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