JPWO2021198644A5 - - Google Patents

Download PDF

Info

Publication number
JPWO2021198644A5
JPWO2021198644A5 JP2022527820A JP2022527820A JPWO2021198644A5 JP WO2021198644 A5 JPWO2021198644 A5 JP WO2021198644A5 JP 2022527820 A JP2022527820 A JP 2022527820A JP 2022527820 A JP2022527820 A JP 2022527820A JP WO2021198644 A5 JPWO2021198644 A5 JP WO2021198644A5
Authority
JP
Japan
Prior art keywords
alkaline earth
alkali metal
deposited
earth metal
inorganic oxide
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2022527820A
Other languages
Japanese (ja)
Other versions
JP2023519053A (en
Publication date
Application filed filed Critical
Priority claimed from PCT/GB2021/050688 external-priority patent/WO2021198644A1/en
Publication of JP2023519053A publication Critical patent/JP2023519053A/en
Publication of JPWO2021198644A5 publication Critical patent/JPWO2021198644A5/ja
Pending legal-status Critical Current

Links

Description

本明細書で使用される場合、「混合酸化物」という用語は、概ね、当該技術分野において従来知られているように、単相における酸化物の混合物を指す。 As used herein, the term "mixed oxide" generally refers to a mixture of oxides in a single phase, as conventionally known in the art.

触媒組成物は、アルカリ金属又はアルカリ土類金属を含んでもよい。いくつかの実施形態では、アルカリ金属又はアルカリ土類金属は、OSC材料上に堆積されていてもよい。あるいは、又は加えて、アルカリ金属又はアルカリ土類金属は、無機酸化物担体上に堆積されていてもよい。すなわち、いくつかの実施形態では、アルカリ金属又はアルカリ土類金属は、OSC材料と無機酸化物担体との両方の上に堆積されていてもよい、すなわち、その上に存在してもよい。 The catalyst composition may include an alkali metal or an alkaline earth metal. In some embodiments, an alkali metal or alkaline earth metal may be deposited on the OSC material. Alternatively or additionally, the alkali metal or alkaline earth metal may be deposited on an inorganic oxide support. That is, in some embodiments, the alkali metal or alkaline earth metal may be deposited on, ie, present on, both the OSC material and the inorganic oxide support.

第1の触媒領域は、第1のアルカリ金属成分又はアルカリ土類金属成分を更に含んでもよい。いくつかの実施形態では、第1のアルカリ金属又はアルカリ土類金属は、第1のOSC材料上に堆積されていてもよい。あるいは、又は加えて、第1のアルカリ金属又はアルカリ土類金属は、第1の無機酸化物担体上に堆積されていてもよい。すなわち、いくつかの実施形態では、第1のアルカリ金属又はアルカリ土類金属は、第1のOSC材料と第1の無機酸化物担体との両方の上に堆積されていてもよく、すなわち、それらの上に存在していてもよい。 The first catalytic region may further include a first alkali metal component or alkaline earth metal component. In some embodiments, a first alkali metal or alkaline earth metal may be deposited on the first OSC material. Alternatively or additionally, the first alkali metal or alkaline earth metal may be deposited on the first inorganic oxide support. That is, in some embodiments, the first alkali metal or alkaline earth metal may be deposited on both the first OSC material and the first inorganic oxide support, i.e. It may exist on top of.

第2の無機酸化物担体は、好ましくは、80m/g超の新生比表面積、約0.1~約4mL/gの範囲の細孔容積を有する。100m/g超の比表面積を有する高比表面積の無機酸化物担体、例えば、高比表面積アルミナが特に好ましい。他の好ましい第2の無機酸化物担体としては、ランタン/アルミナ複合酸化物が挙げられ、これは、任意選択で、セリウム含有成分、例えば、セリアを更に含む。このような場合、セリアは、例えば、コーティングとして、ランタン/アルミナ複合酸化物の表面上に存在していてもよい。 The second inorganic oxide support preferably has a nascent specific surface area of greater than 80 m 2 /g and a pore volume in the range of about 0.1 to about 4 mL/g. Particularly preferred are high specific surface area inorganic oxide supports having a specific surface area of more than 100 m 2 /g, such as high specific surface area alumina. Other preferred second inorganic oxide supports include lanthanum/alumina composite oxides, which optionally further include a cerium-containing component, such as ceria. In such cases, ceria may be present on the surface of the lanthanum/alumina composite oxide, for example as a coating.

いくつかの実施形態では、第2のアルカリ金属又はアルカリ土類金属は、第2のOSC材料上に堆積されていてもよい。あるいは、又は加えて、第2のアルカリ金属又はアルカリ土類金属は、第2の無機酸化物上に堆積されていてもよい。すなわち、いくつかの実施形態では、第2のアルカリ金属又はアルカリ土類金属は、第2のOSC材料と第2の無機酸化物担体との両方の上に堆積されていてもよい、すなわち、その上に存在していてもよい。
In some embodiments, a second alkali metal or alkaline earth metal may be deposited on the second OSC material. Alternatively, or in addition, a second alkali metal or alkaline earth metal may be deposited on the second inorganic oxide. That is, in some embodiments, the second alkali metal or alkaline earth metal may be deposited on both the second OSC material and the second inorganic oxide support, i.e. It may exist above.

JP2022527820A 2020-03-30 2021-03-19 oxygen storage material Pending JP2023519053A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US202063001708P 2020-03-30 2020-03-30
US63/001,708 2020-03-30
PCT/GB2021/050688 WO2021198644A1 (en) 2020-03-30 2021-03-19 Oxygen storage capacity material

Publications (2)

Publication Number Publication Date
JP2023519053A JP2023519053A (en) 2023-05-10
JPWO2021198644A5 true JPWO2021198644A5 (en) 2023-11-15

Family

ID=75562772

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2022527820A Pending JP2023519053A (en) 2020-03-30 2021-03-19 oxygen storage material

Country Status (6)

Country Link
US (1) US20210299637A1 (en)
EP (1) EP4126345A1 (en)
JP (1) JP2023519053A (en)
CN (1) CN114761126A (en)
BR (1) BR112022010726A2 (en)
WO (1) WO2021198644A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11618008B2 (en) * 2020-10-05 2023-04-04 Ford Global Technologies, Llc Precious group metal on pyrochlore-phase ceria zirconia with superior oxygen storage capacity and TWC performance
US11788450B2 (en) * 2020-10-30 2023-10-17 Johnson Matthey Public Limited Company TWC catalysts for gasoline engine exhaust gas treatments

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9805815D0 (en) 1998-03-19 1998-05-13 Johnson Matthey Plc Manufacturing process
US6585944B1 (en) * 2000-10-17 2003-07-01 Delphi Technologies, Inc. Enhancement of the OSC properties of Ce-Zr based solid solutions
JP3817443B2 (en) * 2001-05-14 2006-09-06 株式会社アイシーティー Exhaust gas purification catalyst
US7943104B2 (en) 2006-04-13 2011-05-17 Umicore Ag & Co. Kg CE-ZR based solid solutions and methods for making and using the same
EP1974809B1 (en) 2007-03-19 2010-09-29 Umicore AG & Co. KG Double layer three-way catalytic converter
CN102341174A (en) * 2009-03-06 2012-02-01 株式会社Ict Catalyst For Purification Of Exhaust Gas
US8530372B2 (en) * 2009-07-22 2013-09-10 Basf Corporation Oxygen storage catalyst with decreased ceria reduction temperature
US9242242B2 (en) * 2010-09-02 2016-01-26 Basf Se Catalyst for gasoline lean burn engines with improved NO oxidation activity
EP2781487B1 (en) * 2011-11-16 2019-01-02 Santoku Corporation Composite oxide
CN102744074A (en) * 2012-07-10 2012-10-24 江苏高淳陶瓷股份有限公司 Oxygen storage material for catalytic purification of automobile exhaust and preparation method of oxygen storage matrial
JP5816648B2 (en) * 2013-04-18 2015-11-18 三井金属鉱業株式会社 Exhaust gas purification catalyst composition and exhaust gas purification catalyst
PL3067322T3 (en) * 2014-03-25 2021-05-04 Daiichi Kigenso Kagaku Kogyo Co., Ltd. Cerium-zirconium-based composite oxide and method for producing same
JP6147215B2 (en) * 2014-03-25 2017-06-14 第一稀元素化学工業株式会社 Cerium-zirconium composite oxide and method for producing the same
JP6034356B2 (en) * 2014-12-12 2016-11-30 トヨタ自動車株式会社 Exhaust gas purification catalyst
KR101772641B1 (en) * 2016-04-14 2017-08-29 한국과학기술연구원 Multi-scaled oxygen storage material based on ceria-zirconia having high oxygen storage and releasing ability and a preparation method thereof
US10058846B2 (en) * 2016-09-05 2018-08-28 Toyota Jidosha Kabushiki Kaisha Catalyst for purifying exhaust gas
JP6701581B2 (en) * 2017-03-02 2020-05-27 株式会社豊田中央研究所 Oxygen absorbing/releasing material
JP6710181B2 (en) * 2017-06-12 2020-06-17 株式会社豊田中央研究所 Oxygen storage material and manufacturing method thereof
JP6907890B2 (en) * 2017-11-01 2021-07-21 トヨタ自動車株式会社 Exhaust gas purification catalyst
WO2019136340A1 (en) * 2018-01-08 2019-07-11 Pacific Industrial Development Corporation Catalyst comprising ceria-zirconia-oxygen storage material and process for its production
JP6759272B2 (en) * 2018-04-24 2020-09-23 株式会社豊田中央研究所 Oxygen storage material and its manufacturing method
US11207662B2 (en) * 2018-05-31 2021-12-28 U.S. Department Of Energy Mixed-metal oxide based catalysts

Similar Documents

Publication Publication Date Title
KR101059807B1 (en) Exhaust gas purification catalyst
US7758834B2 (en) Layered catalyst composite
KR100781670B1 (en) A catalyst without rh or with the minimum rh for purifying exhaust gases from engine
US7550124B2 (en) Layered catalyst composite
KR102496070B1 (en) Bi-layered three-way catalyst with improved aging stability
US4910180A (en) Catalyst and process for its preparation
RU2004130484A (en) CIGARETTE WITH A LOW LEVEL OF A SIDE JET OF THE SMOKE, WITH A FUEL PAPER HAVING MODIFIED ASH CHARACTERISTICS
WO2012088373A3 (en) Catalyst support materials with oxygen storage capacity (osc) and method of making thereof
KR970703801A (en) Layered Catalyst Composite
RU2003105236A (en) KORCHOVY METAL CATALYST AND ITS PREDEDER, METHOD FOR PRODUCING THEM, AND APPLICATION OF THE CATALYST
JP2003164760A (en) Ceramic catalyst body
CN104971729A (en) Monolithic catalyst for catalytic combustion of propane, and preparation method thereof
JP2021531957A (en) New PGM Nanoparticle TWC Catalyst for Gasoline Exhaust Gas Applications
US11946405B2 (en) Four-way conversion catalyst for the treatment of an exhaust gas stream
JP2010022910A (en) Catalyst for cleaning exhaust gas and method for manufacturing the same
JP2023162315A (en) Improved twc catalyst-containing high dopant support
JPWO2021198644A5 (en)
JP2016510689A (en) Porous catalyst washcoat
JP3247956B2 (en) Exhaust gas purification catalyst
JP2533703B2 (en) Catalyst for high temperature steam reforming reaction of hydrocarbon and method of using the same
JPH11244695A (en) Oxidation catalyst
JP4938941B2 (en) Synthesis method of dimethyl ether
JP7236998B2 (en) Alumina composition containing manganese oxide, method of making same and use thereof.
JP2570647B2 (en) Nitrogen oxide reduction catalyst and nitrogen oxide reduction method
JPH05154351A (en) Plate type denitration catalyst and preparation of the same