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1.发明授权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
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。
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2.发明申请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
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
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。
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公开(公告)号：US10112181B2
公开(公告)日：2018-10-30
申请号：US15553020
申请日：2016-02-17
发明人： Satoru Katoh , Toshitaka Tanabe , Masahide Miura , Hiromasa Suzuki , Hiroaki Naito , Hirotaka Ori , Keiichi Narita , Michihiko Takeuchi , Tatsuya Ohashi
IPC分类号： B01J23/63 , B01D53/94 , B01J35/02 , B01J35/10 , B01J37/02 , B01J37/08 , B01J35/04 , F01N3/28
摘要： A catalyst for purification of exhaust gas, wherein a substrate and a catalyst coat layer which is formed on a surface of the substrate and which comprises catalyst particles, wherein the catalyst coat layer has an average thickness in a range of 25 to 160 μm, and a void fraction in a range of 50 to 80% by volume as measured by a weight-in-water method, 0.5 to 50% by volume of all voids in the catalyst coat layer consist of high-aspect ratio pores which have equivalent circle diameters in a range of 2 to 50 μm in a cross-sectional image of a cross-section of the catalyst coat layer which the cross-section is perpendicular to a flow direction of exhaust gas in the substrate, and which have aspect ratios of 5 or higher, and the high-aspect ratio pores have an average aspect ratio in a range of 10 to 50.
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公开(公告)号：US10413895B2
公开(公告)日：2019-09-17
申请号：US15560706
申请日：2016-03-24
发明人： Hiromasa Suzuki , Masahide Miura , Yoshinori Saito , Satoru Katoh , Toshitaka Tanabe , Tetsuhiro Hirao , Tatsuya Ohashi , Hiroaki Naito , Hirotaka Ori , Michihiko Takeuchi , Keiichi Narita
IPC分类号： B01J23/54 , B01J23/63 , B01J35/10 , B01J37/00 , B01J37/02 , B01D53/94 , F01N3/28 , B01J37/08 , B01J35/02
摘要： When the amount of coating is increased in a two-layer catalyst or the like containing two noble metals in respective different layers, gas diffusivity in the catalyst and use efficiency of a catalytic active site are reduced to thereby reduce purification performance. In view of this, an organic fiber having a predetermined shape is used as a pore-forming material in formation of an uppermost catalyst coating layer of a multi-layer catalyst, to thereby form an uppermost catalyst coating layer having a high-aspect-ratio pore excellent in connectivity and therefore excellent gas diffusivity.
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公开(公告)号：US10112180B2
公开(公告)日：2018-10-30
申请号：US15026760
申请日：2014-10-02
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.
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公开(公告)号：US11224840B2
公开(公告)日：2022-01-18
申请号：US15560772
申请日：2016-03-24
发明人： Hiromasa Suzuki , Masahide Miura , Yoshinori Saito , Satoru Katoh , Toshitaka Tanabe , Tetsuhiro Hirao , Tatsuya Ohashi , Hiroaki Naito , Hirotaka Ori , Michihiko Takeuchi , Keiichi Narita
IPC分类号： B01J23/10 , B01D53/94 , B01J37/08 , B01J35/10 , B01J37/02 , B01J35/02 , B01J35/00 , B01J23/63 , B01J37/00 , B01J23/56 , B01J35/04 , F01N3/10 , F01N3/28
摘要： An object of the present invention is to provide an exhaust gas purification catalyst which can exhibit sufficient purification performance even under a high Ga condition. The present invention relates to an exhaust gas purification catalyst comprising a substrate and a catalyst coating layer formed on the substrate, wherein the catalyst coating layer comprises catalyst particles, the catalyst coating layer having an upstream region extending by 40 to 60% of the entire length of the substrate from an upstream end of the catalyst in the direction of an exhaust gas flow and a downstream region corresponding to the remainder portion of the catalyst coating layer, the composition of the catalyst particle of the upstream region being different from that of the downstream region. The downstream region in the direction of an exhaust gas flow has a structure where a void is included in a large number, and furthermore high-aspect-ratio pores having an aspect ratio of 5 or more account for a certain percentage or more of the whole volume of voids. Thus, the exhaust gas purification catalyst exhibits enhanced purification performance.
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公开(公告)号：US09937487B2
公开(公告)日：2018-04-10
申请号：US15035659
申请日：2014-11-06
CPC分类号： B01J23/894 , B01D53/945 , B01D2255/1023 , B01D2255/1025 , B01D2255/2063 , B01D2255/20715 , B01D2255/20738 , B01D2255/2092 , B01D2255/407 , B01D2255/9022 , B01D2255/9032 , B01J23/464 , B01J23/63 , B01J35/0006 , B01J35/0073 , Y02T10/22
摘要： Provided is an exhaust gas control catalyst including: a substrate (21); and a catalyst layer (22) that is arranged on the substrate, in which the catalyst layer (22) includes a palladium region (23) that contains palladium, aluminum oxide, ceria-zirconia solid solution, and a composite oxide of lanthanum, iron, and zirconium, and a rhodium region (24) that is arranged adjacent to the palladium region along a plane direction of the catalyst layer and contains rhodium, aluminum oxide, and ceria-zirconia solid solution.
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8.发明申请COMPOSITE OXIDE MATERIAL AND EXHAUST GAS PURIFYING CATALYST USING THE SAME 审中-公开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
发明人： Masahide Miura , Akira Morikawa , Toshitaka Tanabe
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。
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公开(公告)号：US10220368B2
公开(公告)日：2019-03-05
申请号：US15462984
申请日：2017-03-20
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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公开(公告)号：US10065179B2
公开(公告)日：2018-09-04
申请号：US14910378
申请日：2014-08-05
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 , B01J37/00 , B01J37/12 , B01J37/14 , B01J37/03 , B01J23/00 , B01D53/94 , B01J37/16 , B01J23/63 , B01J35/00 , B01J35/02 , C04B35/626 , C04B35/488 , C01G25/00 , C04B35/50 , B01J37/08
摘要： A ceria-zirconia-based composite oxide containing a composite oxide of ceria and zirconia is provided, in which primary particles having a particle diameter of 1.5 to 4.5 μm account for, on a particle number basis, at least 50% of all primary particles in the ceria-zirconia-based composite oxide, and the molar ratio of cerium to zirconium in the ceria-zirconia-based composite oxide is between 43:57 and 55:45.
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