EXHAUST GAS PURIFICATION CATALYST - JOHNSON MATTHEY JAPAN G K

Title:

EXHAUST GAS PURIFICATION CATALYST

Document Type and Number:

WIPO Patent Application WO/2019/065659

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 comprises: a substrate; and a catalytic region on the substrate; wherein the catalytic region comprises a platinum group metal (PGM) component, an oxide, and a rare earth metal component; wherein the oxide is an inorganic oxide, an oxygen storage component (OSC) material, or a mixture thereof; wherein the rare earth metal component concentration by element on the surface of the oxide per unit specific surface area of the oxide is 1 μmol/m2 to 20 μmol/m2.

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JP6820739	Exhaust gas purification catalyst
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Inventors:

NAGAOKA SHUHEI (JP)
SUMIYA SATOSHI (JP)
HIROTA TOMOTAKA (JP)
KURASHIMA YASUNORI (JP)
OHTSUKA YUKIE (JP)
SUZUKI TAKAYUKI (JP)
YAMADA TAKASHI (JP)

Application Number:

PCT/JP2018/035529

Publication Date:

April 04, 2019

Filing Date:

September 25, 2018

Export Citation:

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Assignee:

JOHNSON MATTHEY JAPAN G K (JP)

International Classes:

B01J23/63; B01D53/94; F01N3/10

Foreign References:

JP2014100684A	2014-06-05
EP0393612A2	1990-10-24
EP1563893A1	2005-08-17
US4170573A	1979-10-09
US20160228853A1	2016-08-11

Other References:

None

Attorney, Agent or Firm:

SONODA & KOBAYASHI INTELLECTUAL PROPERTY LAW (JP)

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