JPWO2021198644A5 - - Google Patents
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- 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
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- alkaline earth
- alkali metal
- deposited
- earth metal
- inorganic oxide
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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、80m2/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。100m2/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.
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)
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)
Publication number | Priority date | Publication date | Assignee | Title |
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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 |
-
2021
- 2021-03-19 BR BR112022010726A patent/BR112022010726A2/en not_active Application Discontinuation
- 2021-03-19 EP EP21719703.7A patent/EP4126345A1/en active Pending
- 2021-03-19 US US17/249,952 patent/US20210299637A1/en not_active Abandoned
- 2021-03-19 WO PCT/GB2021/050688 patent/WO2021198644A1/en unknown
- 2021-03-19 JP JP2022527820A patent/JP2023519053A/en active Pending
- 2021-03-19 CN CN202180006902.4A patent/CN114761126A/en active Pending
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