公开(公告)号：US11504700B2

公开(公告)日：2022-11-22

申请号：US16603380

申请日：2018-04-09

申请人： CATALER CORPORATION

发明人： Shunsuke Oishi ,  Shogo Kawamura ,  Takahiro Nagata ,  Hirotaka Ori ,  Minoru Itou

IPC分类号： B01J21/04 ,  B01J21/06 ,  B01J21/08 ,  B01J21/10 ,  B01J21/12 ,  B01J23/02 ,  B01J23/42 ,  B01J23/44 ,  B01J23/46 ,  B01J23/58 ,  B01J35/00 ,  B01J35/04 ,  B01J37/02 ,  B01J37/08 ,  B01J27/053 ,  B01D53/94 ,  F01N3/28

摘要： The present invention provides an exhaust gas purification catalyst including an alkaline earth metal supported in a highly dispersed state on a porous carrier. A catalyst layer of the exhaust gas purification catalyst provided by the invention has an alkaline earth metal-supporting region including a porous carrier, a catalyst metal belonging to the platinum group, and a sulfate of at least one type of alkali earth metal supported on the porous carrier. In a cross-section of this region, a Pearson correlation coefficient RAe/M is at least 0.5 as calculated using α and β for each pixel obtained by carrying out area analysis by FE-EPMA under conditions of pixel size of 0.34 μm×0.34 μm, and measured pixel number 256×256, and by measuring the characteristic X-ray intensity (α:cps) of the alkaline earth metal element (Ae) and the characteristic X-ray intensity (β:cps) of the main constituent element of the inorganic compound constituting the porous carrier for each pixel.

公开(公告)号：US11364489B2

公开(公告)日：2022-06-21

申请号：US16649453

申请日：2018-10-12

申请人： CATALER CORPORATION ,  TOYOTA JIDOSHA KABUSHIKI KAISHA

发明人： Haruka Makino ,  Yasutaka Nomura ,  Satoru Inoda ,  Kenji Nakajima ,  Naoto Miyoshi ,  Takeru Yoshida ,  Akemi Sato

IPC分类号： B01J23/56 ,  B01J35/00 ,  B01D53/94 ,  F01N3/28 ,  B01J35/04

摘要： An exhaust gas purifying catalyst includes: a wall-flow structure substrate including an inlet cell, an outlet cell, and a porous partition; a first catalyst layer formed inside the partition such that a thickness of the first catalyst layer is between 40% and 60%, inclusive, of an overall thickness Tw of the partition; and a second catalyst layer formed inside the partition such that the second catalyst layer extends across an entire region of the partition in a thickness direction thereof.

公开(公告)号：US11286830B2

公开(公告)日：2022-03-29

申请号：US15547589

申请日：2016-01-25

申请人： CATALER CORPORATION ,  TOYOTA JIDOSHA KABUSHIKI KAISHA

发明人： Yoshinori Saito ,  Hirotaka Ori ,  Shingo Sakagami ,  Isao Chinzei ,  Takeru Yoshida ,  Yuki Aoki

IPC分类号： F01N3/28 ,  B01J23/63 ,  B01D53/86 ,  B01D53/94 ,  B01J23/44 ,  B01J35/00 ,  B01J37/02 ,  B01J23/40 ,  F01N3/10

摘要： The exhaust gas cleaning catalyst according is provided with a substrate and a catalyst coat layer formed on a surface of the substrate. The catalyst coat layer is formed as a laminate structure having an upper layer and a lower layer. The upper layer is a Pd-free layer that does not contain Pd, and the lower layer is a Pd-containing layer. In addition, when a region of the lower layer that corresponds to 20% of the length of the exhaust gas cleaning catalyst from the exhaust gas inlet side end towards the exhaust gas outlet side of the exhaust gas cleaning catalyst is divided into four equal regions to be each 5% of the length, the relationship A>B>C is satisfied, where A, B, and C represents the Pd content in the first, second, and third region respectively.

公开(公告)号：US11258076B2

公开(公告)日：2022-02-22

申请号：US16467677

申请日：2017-12-11

申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA ,  CATALER CORPORATION ,  NIPPON STEEL Chemical & Material Co., Ltd.

发明人： Nobuaki Mizutani ,  Yusuke Itoh ,  Toru Yamamoto ,  Kotaro Horiai ,  Mikihiro Kataoka ,  Yuki Makino

IPC分类号： H01M4/00 ,  H01M4/92 ,  H01M4/88 ,  H01M8/1018

摘要： The present invention relates to an electrode catalyst for a fuel cell that includes a carbon support (11) having pores (13) and catalyst particles containing platinum or a platinum alloy supported on the carbon support (11). The pores (13) of the carbon support (11) have a mode size of pores (13) in a range of 2.1 nm to 5.1 nm. A total pore volume of the pores (13) of the carbon support (11) is in a range of 21 cm3/g to 35 cm3/g. A distance between the catalyst particles and a surface of the carbon support (11) is in a range of 2.0 nm to 12 nm as a distance of a 50% cumulative frequency.

公开(公告)号：US11224840B2

公开(公告)日：2022-01-18

申请号：US15560772

申请日：2016-03-24

申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA ,  CATALER CORPORATION

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.

公开(公告)号：US20210336278A1

公开(公告)日：2021-10-28

申请号：US17272409

申请日：2019-09-04

申请人： CATALER CORPORATION

发明人： Akihiro HORI ,  Yosuke HORIUCHI

IPC分类号： H01M4/92 ,  H01M4/90 ,  H01M8/1004 ,  H01M4/86 ,  H01M4/88

摘要： This anode catalyst layer for a fuel cell contains electrode catalyst particles, a carbon carrier on which the electrode catalyst particles are loaded, water electrolysis catalyst particles, a proton-conducting binder, and graphitized carbon. At least part of the carbon carrier has a crystallite size La of 3.0 nm or more.

公开(公告)号：US20210328231A1

公开(公告)日：2021-10-21

申请号：US17272431

申请日：2019-09-04

申请人： CATALER CORPORATION

发明人： Akihiro HORI ,  Yosuke HORIUCHI

IPC分类号： H01M4/92 ,  H01M8/1004 ,  H01M4/96 ,  H01M4/90 ,  H01M4/88

摘要： This anode catalyst layer for a fuel cell contains electrode catalyst particles, a carbon carrier on which the electrode catalyst particles are loaded, water electrolysis catalyst particles, a proton-conducting binder, and graphitized carbon. The graphitized carbon has a bulk density of 0.50/cm3 or less.

公开(公告)号：US11118495B2

公开(公告)日：2021-09-14

申请号：US16662884

申请日：2019-10-24

申请人： CATALER CORPORATION

发明人： Makoto Tsuji ,  Hiroto Imai ,  Kou Sugawara ,  Shintaro Kobayashi

IPC分类号： F01N3/08 ,  F01N11/00 ,  B01D53/94 ,  F01N3/20 ,  F01N3/035 ,  F01N3/28

摘要： An exhaust gas-purifying system includes an exhaust gas-purifying unit that includes one or more exhaust gas-purifying catalysts, is supplied with the exhaust gas from a combustion engine, and purifies the exhaust gas so that the exhaust gas can be released to the atmosphere, a sensor that detects a concentration of nitrogen oxides contained in the purified exhaust gas, and a processing section that makes a judgment with respect to at least one of the exhaust gas-purifying catalysts, as to whether or not a performance is maintained at a sufficient level, based on the concentration detected by the sensor.

公开(公告)号：US20210094027A1

公开(公告)日：2021-04-01

申请号：US16970667

申请日：2019-01-25

申请人： CATALER CORPORATION ,  TOYOTA JIDOSHA KABUSHIKI KAISHA

发明人： Shunsuke OISHI ,  Takaya OTA ,  Isao CHINZEI ,  Hiromasa SUZUKI ,  Yoshinori SAITO ,  Seiji NAKAHIGASHI

IPC分类号： B01J37/02 ,  B01J23/46 ,  B01J23/10 ,  B01J35/00 ,  F01N3/08

摘要： The exhaust gas purification catalyst device includes an upper layer which includes first carrier particles and rhodium, and a lower layer which includes second carrier particles, and the upper layer includes a rhodium enriched area in the range a, from the upstream end in the exhaust gas flow to 50% of the upper layer length, and a range b from the upper layer top surface to 18 μm in the depth direction. The rhodium enriched area contains at least 50% and less than 100% of all the rhodium in the upper layer.

公开(公告)号：US20200263587A1

公开(公告)日：2020-08-20

申请号：US16647004

申请日：2018-09-11

申请人： CATALER CORPORATION ,  TOYOTA JIDOSHA KABUSHIKI KAISHA

发明人： Yasutaka NOMURA ,  Satoru INODA ,  Naoto MIYOSHI ,  Akemi SATO

IPC分类号： F01N3/28 ,  F01N3/035

摘要： An exhaust gas purification including: a base of wall flow structure having inlet side cells wherein an end on the exhaust gas inflow side is open and outlet side cells wherein an end on the exhaust gas outflow side is open, and a porous partition wall that partitions the side cells; and first and second catalyst layers disposed in the interior of the porous partition wall so as to be in contact with the side cells, wherein either of the catalyst layers contains an oxidation catalyst but does not contain a reduction catalyst, and the other contains the reduction catalyst but does not contain the oxidation catalyst; and a ratio of the lengths of the catalyst layers differs between a surface of the porous partition wall on the side in contact with the inlet side cells and a surface on the side in contact with the outlet side cells.