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公开(公告)号：US20220106900A1
公开(公告)日：2022-04-07
申请号：US17487236
申请日：2021-09-28
申请人： Isao CHINZEI , Takumi TOJO , Masahide MIURA , Nobusuke KABASHIMA , Minoru ITO , Naoto FUJITA
发明人： Isao CHINZEI , Takumi TOJO , Masahide MIURA , Nobusuke KABASHIMA , Minoru ITO , Naoto FUJITA
摘要： An exhaust gas purification device includes a substrate including an upstream end and a downstream end, the substrate having a length Ls between the upstream end and the downstream end; a first catalyst layer containing first catalyst particles, extending across a first region, and being in contact with the substrate, the first region extending between the upstream end and a first position, the first position being at a first distance La from the upstream end toward the downstream end; and a second catalyst layer containing second catalyst particles, extending across a second region, and being in contact with the substrate, the second region extending between the downstream end and a second position, the second position being at a second distance Lb from the downstream end toward the upstream end. The first catalyst layer has an inner surface defining macropores.
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公开(公告)号：US08852519B2
公开(公告)日：2014-10-07
申请号：US13382552
申请日：2010-07-09
申请人： Masao Watanabe , Oji Kuno , Nobusuke Kabashima , Keisuke Kishita , Noboru Otake , Hiromochi Tanaka
发明人： Masao Watanabe , Oji Kuno , Nobusuke Kabashima , Keisuke Kishita , Noboru Otake , Hiromochi Tanaka
IPC分类号： B01D50/00 , B01D53/34 , B01J21/00 , B01J21/04 , B01J23/00 , B01J23/02 , B01J23/10 , B01J23/40 , B01J23/42 , B01J23/44 , B01J23/56 , B01J23/58 , B01J21/06 , B01J23/63 , B01J37/02 , B01J23/46 , B01J35/04 , B01D53/94 , B01J37/03 , B01J35/00
CPC分类号： B01J23/63 , B01D53/945 , B01D2255/1021 , B01D2255/1023 , B01D2255/1025 , B01D2255/20715 , B01D2255/402 , B01D2255/407 , B01D2255/9202 , B01J21/066 , B01J23/40 , B01J23/42 , B01J23/464 , B01J35/0013 , B01J35/006 , B01J35/04 , B01J37/0203 , B01J37/0207 , B01J37/0211 , B01J37/0217 , B01J37/0219 , B01J37/038 , Y02T10/22
摘要： Disclosed is an exhaust gas purifying catalyst in which grain growth of a noble metal particle supported on a support is suppressed. Also, disclosed is a production process of an exhaust gas purifying catalyst, by which the above exhaust gas purifying catalyst can be produced. The exhaust gas purifying catalyst comprises a crystalline metal oxide support and a noble metal particle supported on the support, wherein the noble metal particle is epitaxially grown on the support, and wherein the noble metal particle is dispersed and supported on the outer and inner surfaces of the support. The process for producing an exhaust gas purifying catalyst comprises masking, in a solution, at least a part of the surface of a crystalline metal oxide support by a masking agent, introducing the support into a noble metal-containing solution containing a noble metal, and drying and firing the support and the noble metal-containing solution to support the noble metal on the support.
摘要翻译： 公开了一种废气净化催化剂，其中负载在载体上的贵金属颗粒的晶粒生长被抑制。 此外，还公开了可以制造上述废气净化催化剂的排气净化催化剂的制造方法。 废气净化催化剂包括结晶金属氧化物载体和负载在载体上的贵金属颗粒，其中贵金属颗粒在载体上外延生长，其中贵金属颗粒分散并负载在外表面和内表面上 支撑。 制造废气净化催化剂的方法包括在溶液中用掩蔽剂掩蔽结晶金属氧化物载体的至少一部分表面，将载体引入含有贵金属的含贵金属的溶液中，以及 干燥和焙烧载体和含贵金属的溶液以将载体上的贵金属担载。
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公开(公告)号：US20240149260A1
公开(公告)日：2024-05-09
申请号：US18387616
申请日：2023-11-07
IPC分类号： B01J35/04 , B01D53/94 , B01J21/04 , B01J21/06 , B01J23/10 , B01J23/44 , B01J23/46 , B01J35/00 , F01N3/28
CPC分类号： B01J35/04 , B01D53/9472 , B01J21/04 , B01J21/066 , B01J23/10 , B01J23/44 , B01J23/46 , B01J35/0006 , F01N3/2803 , B01D2255/1023 , B01D2255/1025 , B01D2255/2061 , B01D2255/2063 , B01D2255/2065 , B01D2255/2068 , B01D2255/20715 , B01D2255/2092 , B01D2255/407 , B01D2255/9032 , B01D2255/9037 , B01D2255/908 , B01D2255/9202 , B01D2257/404 , B01D2257/702 , B01D2258/01 , F01N2370/02
摘要： The exhaust gas purification device includes a substrate, a first catalyst layer, and a second catalyst layer. The substrate includes an upstream end and a downstream end. The first catalyst layer contains first catalyst particles and lies on the substrate across a first region extending between the upstream end and a first position. The first position is at a first distance from the upstream end toward the downstream end. The second catalyst layer contains second catalyst particles and lies on the first catalyst layer across the first region. The second catalyst layer is provided with pores. Pore connectivity of the second catalyst layer is 5% to 35%. A mean value of areas of the pores of the second catalyst layer in a cross-sectional backscattered electron image of the second catalyst layer may be 0.7 μm2 to 9.0 μm2.
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公开(公告)号：US20140141966A1
公开(公告)日：2014-05-22
申请号：US14104094
申请日：2013-12-12
申请人： Masao Watanabe , Oji Kuno , Nobusuke Kabashima , Keisuke Kishita , Noboru Otake , Hiromochi Tanaka
发明人： Masao Watanabe , Oji Kuno , Nobusuke Kabashima , Keisuke Kishita , Noboru Otake , Hiromochi Tanaka
IPC分类号： B01J23/63
CPC分类号： B01J23/63 , B01D53/945 , B01D2255/1021 , B01D2255/1023 , B01D2255/1025 , B01D2255/20715 , B01D2255/402 , B01D2255/407 , B01D2255/9202 , B01J21/066 , B01J23/40 , B01J23/42 , B01J23/464 , B01J35/0013 , B01J35/006 , B01J35/04 , B01J37/0203 , B01J37/0207 , B01J37/0211 , B01J37/0217 , B01J37/0219 , B01J37/038 , Y02T10/22
摘要： Disclosed is an exhaust gas purifying catalyst in which grain growth of a noble metal particle supported on a support is suppressed. Also disclosed is a production process for producing an exhaust gas purifying catalyst. The exhaust gas purifying catalyst comprises a crystalline metal oxide support and a noble metal particle supported on the support, wherein the noble metal particle is epitaxially grown on the support, and wherein the noble metal particle is dispersed and supported on the outer and inner surfaces of the support. The process for producing an exhaust gas purifying catalyst comprises masking, in a solution, at least a part of the surface of a crystalline metal oxide support by a masking agent, introducing the support into a noble metal-containing solution containing a noble metal, and drying and firing the support and the noble metal-containing solution to support the noble metal on the support.
摘要翻译： 公开了一种废气净化催化剂，其中负载在载体上的贵金属颗粒的晶粒生长被抑制。 还公开了一种废气净化催化剂的制造方法。 废气净化催化剂包括结晶金属氧化物载体和负载在载体上的贵金属颗粒，其中贵金属颗粒在载体上外延生长，其中贵金属颗粒分散并负载在外表面和内表面上 支撑。 制造废气净化催化剂的方法包括在溶液中用掩蔽剂掩蔽结晶金属氧化物载体的至少一部分表面，将载体引入含有贵金属的含贵金属的溶液中，以及 干燥和焙烧载体和含贵金属的溶液以将载体上的贵金属担载。
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公开(公告)号：US12031465B2
公开(公告)日：2024-07-09
申请号：US17487236
申请日：2021-09-28
申请人： Isao Chinzei , Takumi Tojo , Masahide Miura , Nobusuke Kabashima , Minoru Ito , Naoto Fujita
发明人： Isao Chinzei , Takumi Tojo , Masahide Miura , Nobusuke Kabashima , Minoru Ito , Naoto Fujita
CPC分类号： F01N13/0097 , F01N3/28 , F01N3/2807 , F01N3/2825 , F01N13/0093 , F01N2510/0682 , F01N2510/0684
摘要： An exhaust gas purification device includes a substrate including an upstream end and a downstream end, the substrate having a length Ls between the upstream end and the downstream end; a first catalyst layer containing first catalyst particles, extending across a first region, and being in contact with the substrate, the first region extending between the upstream end and a first position, the first position being at a first distance La from the upstream end toward the downstream end; and a second catalyst layer containing second catalyst particles, extending across a second region, and being in contact with the substrate, the second region extending between the downstream end and a second position, the second position being at a second distance Lb from the downstream end toward the upstream end. The first catalyst layer has an inner surface defining macropores.
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公开(公告)号：US20230294078A1
公开(公告)日：2023-09-21
申请号：US18177170
申请日：2023-03-02
CPC分类号： B01J23/44 , B01D53/9413 , B01J21/04 , B01J23/42 , B01J37/0244 , B01D2255/1023 , B01D2255/9022 , B01D2258/01
摘要： Provided is an exhaust gas purification catalyst improved in warm-up performance while suppressing HC poisoning of a noble metal in an atmosphere in which an air-fuel ratio (A/F) is rich and the HC poisoning easily occurs. The present disclosure relates to an exhaust gas purification catalyst that includes a substrate and a catalyst coating layer coated on the substrate. The catalyst coating layer includes a lower coating layer coated on the substrate and an upper coating layer coated on the lower coating layer. The lower coating layer contains a noble metal. The upper coating layer contains Pd and/or Pt. The Pd and/or Pt contained in the upper coating layer is supported on A12O3 by a certain amount or more. A thickness of the upper coating layer is adjusted.
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公开(公告)号：US09018129B2
公开(公告)日：2015-04-28
申请号：US14104094
申请日：2013-12-12
申请人： Masao Watanabe , Oji Kuno , Nobusuke Kabashima , Keisuke Kishita , Noboru Otake , Hiromochi Tanaka
发明人： Masao Watanabe , Oji Kuno , Nobusuke Kabashima , Keisuke Kishita , Noboru Otake , Hiromochi Tanaka
IPC分类号： B01J31/00 , B01J37/00 , C08F4/02 , C08F4/60 , B01J21/00 , B01J21/04 , B01J23/02 , B01J23/04 , B01J23/06 , B01J23/40 , B01J23/42 , B01J23/44 , B01J23/58 , B01J23/63 , B01D53/94 , B01J35/00 , B01J37/02 , B01J37/03 , B01J21/06 , B01J23/46 , B01J35/04
CPC分类号： B01J23/63 , B01D53/945 , B01D2255/1021 , B01D2255/1023 , B01D2255/1025 , B01D2255/20715 , B01D2255/402 , B01D2255/407 , B01D2255/9202 , B01J21/066 , B01J23/40 , B01J23/42 , B01J23/464 , B01J35/0013 , B01J35/006 , B01J35/04 , B01J37/0203 , B01J37/0207 , B01J37/0211 , B01J37/0217 , B01J37/0219 , B01J37/038 , Y02T10/22
摘要： Disclosed is an exhaust gas purifying catalyst in which grain growth of a noble metal particle supported on a support is suppressed. Also disclosed is a production process for producing an exhaust gas purifying catalyst. The exhaust gas purifying catalyst comprises a crystalline metal oxide support and a noble metal particle supported on the support, wherein the noble metal particle is epitaxially grown on the support, and wherein the noble metal particle is dispersed and supported on the outer and inner surfaces of the support. The process for producing an exhaust gas purifying catalyst comprises masking, in a solution, at least a part of the surface of a crystalline metal oxide support by a masking agent, introducing the support into a noble metal-containing solution containing a noble metal, and drying and firing the support and the noble metal-containing solution to support the noble metal on the support.
摘要翻译： 公开了一种废气净化催化剂，其中负载在载体上的贵金属颗粒的晶粒生长被抑制。 还公开了一种废气净化催化剂的制造方法。 废气净化催化剂包括结晶金属氧化物载体和负载在载体上的贵金属颗粒，其中贵金属颗粒在载体上外延生长，其中贵金属颗粒分散并负载在外表面和内表面上 支撑。 制造废气净化催化剂的方法包括在溶液中用掩蔽剂掩蔽结晶金属氧化物载体的至少一部分表面，将载体引入含有贵金属的含贵金属的溶液中，以及 干燥和焙烧载体和含贵金属的溶液以将载体上的贵金属担载。
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公开(公告)号：US20120107188A1
公开(公告)日：2012-05-03
申请号：US13382552
申请日：2010-07-09
申请人： Masao Watanabe , Oji Kuno , Nobusuke Kabashima , Keisuke Kishita , Noboru Otake , Hiromochi Tanaka
发明人： Masao Watanabe , Oji Kuno , Nobusuke Kabashima , Keisuke Kishita , Noboru Otake , Hiromochi Tanaka
CPC分类号： B01J23/63 , B01D53/945 , B01D2255/1021 , B01D2255/1023 , B01D2255/1025 , B01D2255/20715 , B01D2255/402 , B01D2255/407 , B01D2255/9202 , B01J21/066 , B01J23/40 , B01J23/42 , B01J23/464 , B01J35/0013 , B01J35/006 , B01J35/04 , B01J37/0203 , B01J37/0207 , B01J37/0211 , B01J37/0217 , B01J37/0219 , B01J37/038 , Y02T10/22
摘要： Disclosed is an exhaust gas purifying catalyst in which grain growth of a noble metal particle supported on a support is suppressed. Also, disclosed is a production process of an exhaust gas purifying catalyst, by which the above exhaust gas purifying catalyst can be produced. The exhaust gas purifying catalyst comprises a crystalline metal oxide support and a noble metal particle supported on the support, wherein the noble metal particle is epitaxially grown on the support, and wherein the noble metal particle is dispersed and supported on the outer and inner surfaces of the support. The process for producing an exhaust gas purifying catalyst comprises masking, in a solution, at least a part of the surface of a crystalline metal oxide support by a masking agent, introducing the support into a noble metal-containing solution containing a noble metal, and drying and firing the support and the noble metal-containing solution to support the noble metal on the support.
摘要翻译： 公开了一种废气净化催化剂，其中负载在载体上的贵金属颗粒的晶粒生长被抑制。 此外，还公开了可以制造上述废气净化催化剂的排气净化催化剂的制造方法。 废气净化催化剂包括结晶金属氧化物载体和负载在载体上的贵金属颗粒，其中贵金属颗粒在载体上外延生长，其中贵金属颗粒分散并负载在外表面和内表面上 支撑。 制造废气净化催化剂的方法包括在溶液中用掩蔽剂掩蔽结晶金属氧化物载体的至少一部分表面，将载体引入含有贵金属的含贵金属的溶液中，以及 干燥和焙烧载体和含贵金属的溶液以将载体上的贵金属担载。
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