-
1.发明公开
公开(公告)号：EP4406645A1
公开(公告)日：2024-07-31
申请号：EP22872276.5
申请日：2022-09-20
IPC分类号： B01J27/224 , B01D53/94 , B01J35/02 , F01N3/10
摘要： To provide an exhaust gas purification catalyst or the like in which poisoning of a noble metal component by a Si-containing compound generated or detached from silicon carbide is inhibited, degradation of exhaust gas purification performances is inhibited over a long period and long-term durability is excellent. An exhaust gas purification catalyst 100 having a stacked structure including at least a substrate 10, a first coat layer 11 and a second coat layer 21 in the listed order, in which the substrate 10 is one selected from the group consisting of a silicon carbide carrier including silicon carbide and a silicon carbide-covering carrier on which a coating layer including silicon carbide is provided, the first coat layer 11 includes a compound including one or more alkaline-earth metals selected from the group consisting of magnesium (Mg), calcium (Ca), strontium (Sr), and barium (Ba), and the second coat layer 21 includes one or more platinum group elements selected from the group consisting of rhodium (Rh), platinum (Pt), and palladium (Pd).
-
公开(公告)号：EP4223414A1
公开(公告)日：2023-08-09
申请号：EP21875621.1
申请日：2021-09-28
发明人： SEKI, Yasuhiro , MIZUSAKI, Tomoteru , NAGAMORI, Kiyotaka , AOKI, Satoshi , NISHIBETTO, Makoto , WADA, Yoshiyuki , NAKAMURA, Yoko
摘要： The present invention provides a catalyst for electrode having excellent catalytic activity capable of contributing to cost reduction of PEFC. This catalyst for electrodes comprises: a porous carbon support which has nanopores having a pore diameter of from 1 nm to 20 nm; and a plurality of catalyst particles which are supported by the support. The catalyst particles contain Pt (zerovalent), and are supported by both inner portions and outer portions of the nanopores of the support. If an analysis of the particle size distribution of the catalyst particles is performed using three-dimensional reconstructed images obtained through a STEM-based electron tomography measurement, the proportion of the catalyst particles supported by the inner portions of the nanoparticles is 50% or more; at least one nanopore is formed in a cubic image having a side of from 20 nm to 50 nm, said cubic image being obtained from a three-dimensional reconstructed image of a catalyst aggregate; and this nanopore has the shape of a continuously extending interconnected pore.
-
3.发明公开
公开(公告)号：EP3932545A1
公开(公告)日：2022-01-05
申请号：EP20762503.9
申请日：2020-02-20
发明人： KANEDA Kiyotomi , MITSUDOME Takato , KIMURA Miho , TAKAGI Yukio , IMANAKA Yosuke , SUZUKA Hiroyasu , KOJIMA Tatsuya
IPC分类号： B01J27/18 , B01J27/19 , B01J37/02 , B01J37/04 , C07B61/00 , C07C209/26 , C07C209/50 , C07C211/03 , C07C211/08 , C07C211/17 , C07C211/27 , C07C211/35 , C07C211/45 , C07D209/44 , C07D295/02 , C07D295/023 , C07D295/03 , C07D487/08
摘要： Provided is a catalyst for amide compound hydrogenation characterized in that rhodium and molybdenum are supported on hydroxyapatite, the catalyst for amide compound hydrogenation providing a catalyst that can promote a reduction reaction that converts an amide compound into an amine compound, can be used under moderate conditions, and has durability that allows repeated use thereof while retaining high activity. Also provided is a method for producing an amine compound, the method being characterized by including bringing an amide compound into contact with the catalyst for amide compound hydrogenation to cause hydrogenation, thereby producing an amine compound.
-
公开(公告)号：EP3892837A1
公开(公告)日：2021-10-13
申请号：EP19893205.5
申请日：2019-10-09
发明人： MATSUNAMI, Yukihiko , KAYADA, Yuto , ANDO, Ryuji
IPC分类号： F01N3/08 , B01D53/92 , B01D53/94 , B01J29/78 , B01J35/04 , F01N3/035 , F01N3/10 , F01N3/24 , F01N3/28
摘要： Provided is an exhaust gas purification apparatus for lean combustion engines with excellent NO x removal performance, which can exhibit relatively high NO x removal performance even under a condition of a relatively low amount of ammonia adsorbed. The exhaust gas purification apparatus 100 for lean combustion engines comprises a selective reducing catalyst SCR which has at least a first catalyst region SCR 1 containing at least an oxygen storage and release material and a transition metal element and a second catalyst region SCR 2 containing at least zeolite and a transition metal element supported on the zeolite, wherein the maximum amount of NH 3 adsorbed per unit volume of the first catalyst region SCR 1 is smaller than the maximum amount of NH 3 adsorbed per unit volume of the second catalyst region SCR 2 under a condition of NH 3 adsorption at 33% of the saturated adsorption amount, and the first catalyst region SCR 1 is arranged on the upstream side of an exhaust gas flow channel for an exhaust gas with respect to the second catalyst region SCR 2 so that the exhaust gas contacts the first catalyst region SCR 1 and the second catalyst region SCR 2 in this order.
-
公开(公告)号：EP3796439A1
公开(公告)日：2021-03-24
申请号：EP19803350.8
申请日：2019-05-15
摘要： Provide an electrode catalyst with excellent catalytic activity that can contribute to cost reduction of PEFC. The electrode catalyst includes a hollow carbon carrier with mesopores with a pore size of 2 to 50nm and a catalyst particle supported on the carrier. The catalyst particle is supported on both inside and outside the mesopores of the carrier, and have a core portion formed on the carrier and a shell portion covering at least a part of the surface of the core portion. Pd is included in the core portion, and Pt is included in the shell portion, and when the analysis of the particle size distribution of the catalyst particles using the three dimensional reconstructed image obtained by electron beam tomography (electron tomography) measurement using an STEM is performed, the ratio of the catalyst particles supported inside the mesopore is 50% or more.
-
公开(公告)号：EP3795247A1
公开(公告)日：2021-03-24
申请号：EP19803997.6
申请日：2019-05-16
摘要： An object of the present invention is to provide an exhaust gas purifying catalyst which has good exhaust gas purifying performance and can suppress an increase in pressure loss after the deposit of ash.
An exhaust gas purifying catalyst for purifying exhaust gas discharged from an internal combustion engine includes: a wall flow type substrate in which an inflow-side cell having an open at an exhaust gas inflow-side end, and an outflow-side cell adjacent to the inflow-side cell and having an open at an exhaust gas outflow-side end are separated by a porous partition wall; and a catalyst layer formed at a plurality of locations in pores of the partition wall and containing at least one catalyst metal. The catalyst layer is biasedly located toward a side of the outflow-side cell in a thickness direction of the partition wall.-
7.发明公开
公开(公告)号：EP3581268A1
公开(公告)日：2019-12-18
申请号：EP18750786.8
申请日：2018-02-09
发明人： HARA, Hiroyuki , NAKAYAMA, Hiroki , NAGATA, Makoto
摘要： There are provided an exhaust gas-purifying catalyst composition that can purify hydrocarbons, carbon monoxide, nitrogen oxides, and the like discharged from an internal combustion engine or the like, and can maintain excellent purification performance particularly under a wide range of conditions from low temperature to high temperature, and a method for producing the same, and an automobile exhaust gas-purifying catalyst. The present invention provides an exhaust gas-purifying catalyst composition for purifying carbon monoxide (CO), hydrocarbons (HC), nitrogen oxides (NOx), and the like in exhaust gas, comprising at least Rh; a complex oxide that is a particular Ce-containing component (A) and/or a particular Zr-containing component (B); and alumina, wherein Rh is supported on alumina together with the complex oxide, an amount of Rh supported is 0.01 to 5 wt% based on a total amount of Rh, the complex oxide, and alumina, and a content of the complex oxide is 0.1 to 30 wt% in total based on the total amount of Rh, the complex oxide, and alumina, and the like.
-
公开(公告)号：EP3552699A1
公开(公告)日：2019-10-16
申请号：EP17878231.4
申请日：2017-12-06
发明人： CHOI, Junchul , FUKAYA Norihisa , ONOZAWA Shunya , SATO Kazuhiko , YASUDA Hiroyuki , MIZUSAKI Tomoteru , TAKAGI Yukio
IPC分类号： B01J31/22
摘要： Provided is an organometallic complex catalyst that makes it possible to obtain a higher yield of a desired product than conventional catalysts in a cross-coupling reaction. The organometallic complex catalyst has a structure represented by formula (1) and is for use in a cross-coupling reaction. In formula (1), M is the coordination center and represents a metal atom such as Pd or an ion thereof. R1, R2, and R3 may be the same or different and are a substituent such as a hydrogen atom. R4, R5, R6, and R7 may be the same or different and are a substituent such as a hydrogen atom. X represents a halogen atom. R8 represents a substituent that has a π bond and 3-20 carbon atoms. With regard to the electron-donating properties of R1-R7 with respect to the coordination center M of the ligand containing R1-R7 that is indicated in formula (2), R1-R7 are arranged in combination such that the TEP value obtained from infrared spectroscopy shifts toward the high frequency side compared to the TEP value of the ligand of formula (2-1).
-
公开(公告)号：EP2851528B1
公开(公告)日：2018-06-20
申请号：EP13791211.9
申请日：2013-04-09
发明人： OKAJIMA, Toshinori , NAGATA, Makoto
IPC分类号： F01N3/10 , B01D53/94 , B01J23/58 , B01J29/74 , B01J35/10 , F01N3/023 , F01N3/035 , F01N3/08 , F01N3/24 , F01N3/28 , B01J37/02 , B01J35/00 , F01N13/00 , B01J29/06 , B01J29/76 , B01J35/04 , F01N3/20
CPC分类号： B01D53/9477 , B01D53/9418 , B01D53/944 , B01D2255/1021 , B01D2255/1023 , B01D2255/2042 , B01D2255/2092 , B01D2255/902 , B01D2255/9202 , B01D2257/406 , B01D2258/012 , B01J21/04 , B01J23/44 , B01J23/58 , B01J29/06 , B01J29/7615 , B01J35/0006 , B01J35/04 , B01J35/1061 , B01J35/1066 , B01J37/0219 , B01J37/0244 , B01J37/0248 , F01N3/035 , F01N3/103 , F01N3/106 , F01N3/206 , F01N3/2066 , F01N13/009 , F01N13/0097 , F01N2250/02 , F01N2370/02 , F01N2510/06 , F01N2570/10 , F01N2570/12 , F01N2570/14 , F01N2610/02 , Y02A50/2341 , Y02T10/24
摘要： The present invention is to provide an exhaust gas purification catalyst apparatus, which is superior in oxidation performance of, in particular, nitrogen monoxide, among hydrocarbons, carbon monoxide, nitrogen oxides and particulate components such as soot, included in exhaust gas from a lean burn engine, and combustion performance of light oil. The present invention is an exhaust gas purification apparatus arranged with an oxidation catalyst (DOC) comprising a noble metal component for oxidizing carbon monoxide, hydrocarbons, in particular, nitrogen monoxide among nitrogen oxides, and for combusting light oil, a catalyzed soot filter (CSF) including a noble metal component for collecting a particulate component such as soot and removing by combustion (oxidation) it, a reducing agent spraying means for supplying a reducing agent selected from a urea component or an ammonia component, and a selective reduction catalyst (SCR) not-including a noble metal for removing by reduction of nitrogen oxides (NO x ) by contacting with the reducing agent, in this order from the upstream side of an exhaust gas passage, in order to purify carbon monoxide, hydrocarbons, nitrogen oxides, and particulate components such as soot, in exhaust gas discharged from a diesel engine, characterized in that the oxidation catalyst (DOC) has a catalyst layer where platinum (Pt), palladium (Pd) and barium oxide (BaO) are supported on alumina (Al 2 O 3 ) having a pore size of 12 to 120 nm, and ratio of platinum and palladium is 1:1 to 11:2 in weight equivalent.
-
10.发明公开PRODUCTION METHOD FOR ELECTRODE CATALYST, ELECTRODE CATALYST, COMPOSITION FOR FORMING GAS DIFFUSION ELECTRODE, GAS DIFFUSION ELECTRODE, MEMBRANE-ELECTRODE ASSEMBLY (MEA), AND FUEL CELL STACK 有权电极催化剂的生产方法，电极催化剂，形成气体扩散电极的组合物，气体扩散电极，膜电极组件（MEA）和燃料电池堆
公开(公告)号：EP3035424A1
公开(公告)日：2016-06-22
申请号：EP15769321.9
申请日：2015-03-27
CPC分类号： H01M4/8657 , H01M4/86 , H01M4/8825 , H01M4/8842 , H01M4/90 , H01M4/92 , H01M4/921 , H01M4/926 , H01M8/02 , H01M2008/1095 , Y02P70/56
摘要： Provided is a production method of an electrode catalyst that can reduce the content of chlorine species reliably and sufficiently through a simple operation, even when using an electrode catalyst precursor containing a high concentration of chlorine (Cl) species as a raw material of the electrode catalyst. The production method of the electrode catalyst has a core-shell structure including a core part formed on a support and a shell part formed to cover at least a part of a surface of the core part. The production method includes a first step (1) of preparing a first liquid with an electrode catalyst precursor (I) being dispersed in ultrapure water by adding the electrode catalyst precursor (I) to the ultrapure water, the electrode catalyst precursor (I) being produced using a material containing chlorine (Cl) species, and exhibiting a chlorine (Cl) species concentration not lower than a first chlorine (Cl) species concentration when measured by X-ray fluorescence (XRF) spectroscopy; and a second step (2) of preparing a second liquid by dispersing an electrode catalyst precursor (II), the electrode catalyst precursor (II) being obtained by filtrating and washing the electrode catalyst precursor (I) contained in the first liquid with ultrapure water , and then performing washing until an electric conductivity p of a filtrate has become a first value or lower.
摘要翻译： 本发明提供一种电极催化剂的制造方法，即使使用含有高浓度的氯（Cl）物质的电极催化剂前体作为电极催化剂的原料，也能够通过简单的操作可靠且充分地降低氯物种的含量 。 电极催化剂的制造方法具有核壳结构，该核壳结构包括形成在支撑体上的核部分和形成为覆盖核核部分的至少一部分表面的壳部分。 该制造方法包括：第一工序（1），通过在超纯水中添加电极催化剂前体（I），使电极催化剂前体（I）分散于超纯水中而制备第一液体，电极催化剂前体（I）为 （X）荧光（XRF）光谱法测量时，使用含有氯（Cl）物质的材料制备，并且具有不低于第一氯（Cl）物质浓度的氯（Cl）物质浓度; 和通过分散电极催化剂前体（II）制备第二液体的第二步骤（2），所述电极催化剂前体（II）通过用超纯水过滤并清洗包含在第一液体中的电极催化剂前体（I） ，然后进行洗涤直至滤液的电导率p变为第一值或更低。
-
-
-
-
-
-
-
-
-
搜索结果
170 条记录 (耗时 0.03 秒)
