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1. 发明授权

US09409152B2 Catalyst support for purification of exhaust gas, catalyst for purification of exhaust gas using the same, and method for producing the catalyst support for purification of exhaust gas 有权
标题翻译：用于净化废气的催化剂载体，使用其的废气净化催化剂以及用于净化废气的催化剂载体的制备方法
公开(公告)号：US09409152B2
公开(公告)日：2016-08-09
申请号：US14410345
申请日：2013-06-20
申请人： KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO , TOYOTA JIDOSHA KABUSHIKI KAISHA
发明人： Naoki Kumatani , Akira Morikawa , Kae Konishi , Kimitoshi Sato , Toshitaka Tanabe , Akihiko Suda , Masahide Miura , Isao Chinzei , Hiromasa Suzuki , Takeshi Nobukawa , Takahiro Hayashi
IPC分类号： B01J23/00 , B01J23/02 , B01J23/08 , B01J23/10 , B01J23/40 , B01J23/42 , B01J23/44 , B01J23/56 , B01J23/70 , B01J23/72 , B01J20/00 , B01J21/04 , B01J21/06 , B01J23/63 , B01J35/00 , B01J35/02 , B01J35/10 , B01J37/00 , B01J23/83 , B01J37/04 , B01J37/08 , B01D53/94
CPC分类号： B01J23/10 , B01D53/945 , B01D2255/1023 , B01D2255/2065 , B01D2255/20715 , B01D2255/20761 , B01D2255/2092 , B01D2255/908 , B01D2255/9205 , B01D2255/9207 , B01J21/04 , B01J21/066 , B01J23/002 , B01J23/44 , B01J23/63 , B01J23/83 , B01J35/0013 , B01J35/002 , B01J35/006 , B01J35/023 , B01J35/1009 , B01J35/1014 , B01J35/1038 , B01J35/1042 , B01J35/1047 , B01J35/1052 , B01J35/1057 , B01J35/1061 , B01J35/1066 , B01J35/1071 , B01J35/1076 , B01J35/108 , B01J37/0063 , B01J37/0201 , B01J37/04 , B01J37/08 , B01J2523/00 , Y02T10/22 , B01J2523/31 , B01J2523/36 , B01J2523/3706 , B01J2523/3712 , B01J2523/48 , B01J2523/824 , B01J2523/17
摘要： A catalyst support for purification of exhaust gas includes a porous composite metal oxide, the porous composite metal oxide containing alumina, ceria, and zirconia and having an alumina content ratio of from 5 to 80% by mass, wherein after calcination in the air at 1100° C. for 5 hours, the porous composite metal oxide satisfies a condition such that standard deviations of content ratios (as at % unit) of aluminum, cerium and zirconium elements are each 19 or less with respect to 100 minute areas (with one minute area being 300 nm in length×330 nm in width) of the porous composite metal oxide, the standard deviation being determined by energy dispersive X-ray spectroscopy using a scanning transmission electron microscope equipped with a spherical aberration corrector.
摘要翻译：用于净化废气的催化剂载体包括多孔复合金属氧化物，含有氧化铝，二氧化铈和氧化锆的多孔复合金属氧化物，其氧化铝含量比为5-80质量％，其中在空气中煅烧1100 ℃下，多孔复合金属氧化物满足以下条件：相对于100分钟区域（1分钟），铝，铈和锆元素的含量比（以％为单位）的标准偏差分别为19以下多孔复合金属氧化物的长度为300nm×宽度为330nm的区域），使用配备有球面像差校正器的扫描透射型电子显微镜，通过能量色散X射线光谱法测定标准偏差。

2. 发明申请

US20150266004A1 CATALYST SUPPORT FOR PURIFICATION OF EXHAUST GAS, CATALYST FOR PURIFICATION OF EXHAUST GAS USING THE SAME, AND METHOD FOR PRODUCING THE CATALYST SUPPORT FOR PURIFICATION OF EXHAUST GAS 有权
标题翻译：用于净化排气的催化剂支持，用于净化除臭气体的催化剂及其制备用于净化排气的催化剂支持的方法
公开(公告)号：US20150266004A1
公开(公告)日：2015-09-24
申请号：US14410345
申请日：2013-06-20
申请人： KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO , TOYOTA JIDOSHA KABUSHIKI KAISHA
发明人： Naoki Kumatani , Akira Morikawa , Kae Konishi , Kimitoshi Sato , Toshitaka Tanabe , Akihiko Suda , Masahide Miura , Isao Chinzei , Hiromasa Suzuki , Takeshi Nobukawa , Takahiro Hayashi
IPC分类号： B01J23/10 , B01J37/08 , B01J35/10 , B01J37/04 , B01J23/63 , B01J23/83
CPC分类号： B01J23/10 , B01D53/945 , B01D2255/1023 , B01D2255/2065 , B01D2255/20715 , B01D2255/20761 , B01D2255/2092 , B01D2255/908 , B01D2255/9205 , B01D2255/9207 , B01J21/04 , B01J21/066 , B01J23/002 , B01J23/44 , B01J23/63 , B01J23/83 , B01J35/0013 , B01J35/002 , B01J35/006 , B01J35/023 , B01J35/1009 , B01J35/1014 , B01J35/1038 , B01J35/1042 , B01J35/1047 , B01J35/1052 , B01J35/1057 , B01J35/1061 , B01J35/1066 , B01J35/1071 , B01J35/1076 , B01J35/108 , B01J37/0063 , B01J37/0201 , B01J37/04 , B01J37/08 , B01J2523/00 , Y02T10/22 , B01J2523/31 , B01J2523/36 , B01J2523/3706 , B01J2523/3712 , B01J2523/48 , B01J2523/824 , B01J2523/17
摘要： A catalyst support for purification of exhaust gas includes a porous composite metal oxide, the porous composite metal oxide containing alumina, ceria, and zirconia and having an alumina content ratio of from 5 to 80% by mass, wherein after calcination in the air at 1100° C. for 5 hours, the porous composite metal oxide satisfies a condition such that standard deviations of content ratios (as at % unit) of aluminum, cerium and zirconium elements are each 19 or less with respect to 100 minute areas (with one minute area being 300 nm in length×330 nm in width) of the porous composite metal oxide, the standard deviation being determined by energy dispersive X-ray spectroscopy using a scanning transmission electron microscope equipped with a spherical aberration corrector.
摘要翻译：用于净化废气的催化剂载体包括多孔复合金属氧化物，含有氧化铝，二氧化铈和氧化锆的多孔复合金属氧化物，其氧化铝含量比为5-80质量％，其中在空气中煅烧1100 ℃下，多孔复合金属氧化物满足以下条件：相对于100分钟区域（1分钟），铝，铈和锆元素的含量比（以％为单位）的标准偏差分别为19以下多孔复合金属氧化物的长度为300nm×宽度为330nm的区域），使用配备有球面像差校正器的扫描透射型电子显微镜，通过能量色散X射线光谱法测定标准偏差。

3. 发明授权

US08984861B2 Catalyst deterioration diagnosis method, method for purification of exhaust gas using the diagnosis method, catalyst deterioration diagnosis apparatus, and apparatus for purification of exhaust gas using the diagnosis apparatus 有权
标题翻译：使用诊断方法的催化剂劣化诊断方法，废气净化方法，催化剂劣化诊断装置和使用该诊断装置的废气净化装置
公开(公告)号：US08984861B2
公开(公告)日：2015-03-24
申请号：US13847722
申请日：2013-03-20
申请人： Kabushiki Kaisha Toyota Chuo Kenkyusho
发明人： Yoshiyuki Sakamoto , Akihiko Suda , Akira Morikawa
IPC分类号： F01N3/00 , F01N3/10 , F01N11/00 , F02D41/14
CPC分类号： F01N11/00 , F01N2550/02 , F01N2560/12 , F01N2900/1624 , F02D41/1475 , F02D2200/0814 , Y02T10/47
摘要： A catalyst deterioration diagnosis method for diagnosing deterioration of a catalyst for purification of exhaust gas by using a test catalyst disposed in an exhaust gas flow path through which the exhaust gas flows, the method including an exhaust gas control step of inverting an air-fuel ratio of the exhaust gas in the flow path from a lean side to a rich side or from a rich side to a lean side; a measurement step of measuring a change over time in electrical resistance of the test catalyst at the inversion of the air-fuel ratio and finding a resistance change ratio of the test catalyst; and a determination step of determining catalytic deterioration of the test catalyst based on the resistance change ratio.
摘要翻译：一种用于通过使用设置在废气流过的排气流路中的试验催化剂来诊断用于净化废气的催化剂的劣化的催化剂劣化诊断方法，所述方法包括：排气控制步骤，使空燃比从贫侧到富侧或从富侧到稀侧的流路中的废气; 测量步骤，测量在空燃比反转时试验催化剂的电阻随时间的变化，并求出试验催化剂的电阻变化率; 以及基于电阻变化率来测定试验催化剂的催化劣化的测定步骤。

4. 发明申请

US20150290621A1 COMPOSITE OXIDE MATERIAL AND EXHAUST GAS PURIFYING CATALYST USING THE SAME 审中-公开
标题翻译：使用相同的复合氧化物材料和排气净化催化剂
公开(公告)号：US20150290621A1
公开(公告)日：2015-10-15
申请号：US14439940
申请日：2013-11-14
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA
发明人： Masahide Miura , Akira Morikawa , Toshitaka Tanabe
IPC分类号： B01J23/10 , B01J35/00 , B01J35/02 , B01J21/06
CPC分类号： B01J23/10 , B01D53/9445 , B01D2255/2065 , B01D2255/908 , B01J21/066 , B01J35/0006 , B01J35/002 , B01J35/02 , B01J35/023 , B01J37/0236 , B01J37/031 , B01J37/14 , B01J37/16 , C01G25/00 , C01P2002/36 , C01P2004/04 , Y02T10/22
摘要： The object of the present invention is to provide an oxygen storage material used for an exhaust gas purifying catalyst that is superior in stability at high temperatures. The composite oxide material of the invention comprises crystalline particles of a ceria-zirconia composite oxide with a pyrochlore structure and crystals of a ceria-zirconia composite oxide with a fluorite structure on the particle surface, in which the crystals of the ceria-zirconia composite oxide with a fluorite structure contains zirconia in a larger amount than that of ceria, and such crystals are integrated with the crystalline particles of the ceria-zirconia composite oxide with a pyrochlore structure. The composite oxide material of the invention has high oxygen storage capacity that is less likely to decrease at high temperatures.
摘要翻译：本发明的目的是提供一种在高温下的稳定性优异的废气净化用催化剂用的储氧材料。本发明的复合氧化物材料包括具有烧绿石结构的二氧化铈 - 氧化锆复合氧化物和颗粒表面上具有萤石结构的二氧化铈 - 氧化锆复合氧化物晶体的结晶颗粒，其中二氧化铈 - 氧化锆复合氧化物萤石结构含有比二氧化铈更大量的氧化锆，并且这种晶体与具有烧绿石结构的二氧化铈 - 氧化锆复合氧化物的结晶颗粒结合。本发明的复合氧化物材料具有高的储氧能力，在高温下不太可能降低。

5. 发明授权

US10668449B2 Oxygen storage material and method for producing the same 审中-公开
公开(公告)号：US10668449B2
公开(公告)日：2020-06-02
申请号：US16392800
申请日：2019-04-24
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA
发明人： Yoshihiro Goto , Akira Morikawa , Masahide Miura , Nobuyuki Takagi
IPC分类号： B01J23/00 , B01J23/10 , B01J21/06 , B01J37/08 , B01D53/94 , B01J35/02 , B01J35/10
摘要： An oxygen storage material comprises a Ce—Zr-Ln-Ti-based composite oxide containing cerium (Ce), zirconium (Zr), a rear-earth element (Ln: excluding cerium), and titanium (Ti), wherein at least part of the rear-earth element and at least part of the titanium are solid-dissolved in a composite oxide of the cerium and the zirconium, and the Ce—Zr-Ln-Ti-based composite oxide has a composition expressed by the following chemical formula (1): Cea-xLnxZrb-yTiyOδ (1), where a, b, x, and y are numbers satisfying conditions of a=0.4 to 0.6, b=0.4 to 0.6, x=0 to a (exclusive of x=0 and x=a), y=0 to 0.3 (exclusive of y=0), and a+b=1, and δ is a number of 1.7 to 2.2.

6. 发明申请

US20190321807A1 OXYGEN STORAGE MATERIAL AND METHOD FOR PRODUCING THE SAME 审中-公开
公开(公告)号：US20190321807A1
公开(公告)日：2019-10-24
申请号：US16392823
申请日：2019-04-24
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA
发明人： Yoshihiro Goto , Akira Morikawa , Masahide Miura , Nobuyuki Takagi
IPC分类号： B01J23/83 , B01J23/00 , B01J37/04 , B01J37/08
摘要： An oxygen storage material comprises a La—Co—Al-based composite oxide containing lanthanum, cobalt and aluminum. The La—Co—Al-based composite oxide is in a form in which at least part of the aluminum is solid-dissolved in a La—Co composite oxide having a perovskite structure, and has a composition expressed by the following chemical formula (1): LaCoyAlxOδ (1) where x and y are numbers satisfying conditions of 0

7. 发明授权

US11969712B2 Catalyst for purification of exhaust gas and production method thereof 有权
公开(公告)号：US11969712B2
公开(公告)日：2024-04-30
申请号：US17979571
申请日：2022-11-02
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA
发明人： Naoki Kumatani , Akira Morikawa , Masaoki Iwasaki , Miho Hatanaka , Taizo Yoshinaga , Masahide Miura , Takahiro Hayashi
IPC分类号： B01J21/04 , B01D53/94 , B01J21/06 , B01J23/10 , B01J23/44 , B01J23/63 , B01J35/00 , B01J35/23 , B01J35/30 , B01J37/02
CPC分类号： B01J23/63 , B01D53/94 , B01J23/10 , B01J35/23 , B01J35/394 , B01J37/0221 , B01J37/0228 , B01J37/0244 , B01D2255/1023 , B01D2255/2065 , B01D2255/908
摘要： A catalyst for purification of exhaust gas in which Pd-based nanoparticles and ceria nanoparticles are supported on a composite metal oxide support containing alumina, ceria, and zirconia, wherein a molar ratio (Ce/Pd) of Ce and Pd supported on the support is 1 to 8, a proximity α between Pd and Ce is 0.15 to 0.50, wherein the proximity α is determined, based on Pd and Ce distribution maps in an element mapping image of energy dispersive X-ray analysis, by the following formula (1):

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a Pd dispersity after a heat-resistance test at 1050° C. for 25 hours is 0.8% or more.

8. 发明授权

US11559786B2 Oxygen storage material and method for producing the same 有权
公开(公告)号：US11559786B2
公开(公告)日：2023-01-24
申请号：US16595619
申请日：2019-10-08
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA
发明人： Akira Morikawa , Masahide Miura , Nobuyuki Takagi
IPC分类号： B01J23/10 , B01J37/04 , B01J37/03 , B01J37/00 , B01J37/06 , B01J37/02 , B01J37/08 , B01J37/16 , B01J37/12 , B01D53/94 , B01J35/02 , F01N3/10
摘要： An oxygen storage material including a ceria-zirconia based composite oxide containing a composite oxide of ceria and zirconia, wherein the ceria-zirconia based composite oxide comprises at least one rare-earth element selected from the group consisting of lanthanum, yttrium, and neodymium, and an amount of the rare-earth element(s) contained in total is 1 to 10% by atom in terms of element relative to a total amount of cerium and zirconium in the ceria-zirconia based composite oxide, 60 to 85% by atom of the entire amount of the rare-earth element(s) is contained in a near-surface upper-layer region extending from a surface of each primary particle of the ceria-zirconia based composite oxide to a depth of 50 nm in the primary particle, and 15 to 40% by atom of the entire amount of the rare-earth element(s) is contained in a near-surface lower-layer region extending from a depth of 50 nm to a depth of 100 nm in the primary particle, a content ratio of cerium and zirconium in the ceria-zirconia based composite oxide is in a range of 40:60 to 60:40 in terms of an atomic ratio ([Ce]:[Zr]), and the ceria-zirconia based composite oxide has an intensity ratio {I(14/29) value} between a diffraction line at 2θ=14.5° and a diffraction line at 2θ=29° which satisfies the following condition: I(14/29) value≥0.032, where the intensity ratio {I(14/29) value} is determined from an X-ray diffraction pattern using CuKα obtained by an X-ray diffraction measurement conducted after heating in air under a temperature condition of 1100° C. for 5 hours.

9. 发明授权

US10112180B2 Ceria-zirconia composite oxide, method for producing the same, and catalyst for purifying exhaust gas using the ceria-zirconia composite oxide 有权
公开(公告)号：US10112180B2
公开(公告)日：2018-10-30
申请号：US15026760
申请日：2014-10-02
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA , CATALER CORPORATION
发明人： Akira Morikawa , Kae Konishi , Toshitaka Tanabe , Akihiko Suda , Masahide Miura , Isao Chinzei , Hiromasa Suzuki , Akiya Chiba , Kosuke Iizuka
IPC分类号： B01J23/10 , C01G25/00 , C04B35/488 , B01D53/94 , C04B35/626 , B01J37/03 , B01J37/04 , B01J23/63 , B01J23/66 , B01J35/00 , B01J35/02 , B01J37/02 , B01J23/00 , C01F17/00 , B01J37/08 , B01J37/00
摘要： A ceria-zirconia composite oxide includes at least one of lanthanum, yttrium, and praseodymium. A rate of a total content of the at least one rare earth element to a total content of cerium and zirconium is 0.1 at % to 4.0 at %. A content of the rare earth element present in near-surface regions, which are at a distance of less than 50 nm from surfaces of primary particles of the ceria-zirconia composite oxide, accounts for 90 at % or more of the total content of the rare earth element. An average particle size of the primary particles of the ceria-zirconia composite oxide is 2.2 μm to 4.5 μm. After a predetermined durability test, the intensity ratio I(14/29) of a diffraction line at 2θ=14.5° to a diffraction line at 2θ=29° and the intensity ratio I(28/29) of a diffraction line at 2θ=28.5° to the diffraction line at 2θ=29° respectively satisfy the following conditions: I(14/29)≥0.02, and I(28/29)≤0.08.

10. 发明授权

US10220368B2 Oxygen storage material and method of producing the same 有权
公开(公告)号：US10220368B2
公开(公告)日：2019-03-05
申请号：US15462984
申请日：2017-03-20
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA
发明人： Akira Morikawa , Yoshihiro Goto , Toshitaka Tanabe , Masahide Miura , Hiromasa Suzuki
IPC分类号： B01J20/06 , B01J20/30
摘要： An oxygen storage material comprises three pyrochlore-type composite oxides which are a ceria-zirconia composite oxide, a lanthana-zirconia composite oxide, and a ceria-zirconia-lanthana composite oxide, and which coexist together, wherein the oxygen storage material contains: first secondary particles made of the pyrochlore-type ceria-zirconia composite oxide and the pyrochlore-type ceria-zirconia-lanthana composite oxide; and second secondary particles made of the pyrochlore-type lanthana-zirconia composite oxide and the pyrochlore-type ceria-zirconia-lanthana composite oxide.

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