专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JP2014114196A Composite oxide material and exhaust gas purification 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：JP2014114196A
公开(公告)日：2014-06-26
申请号：JP2012271387
申请日：2012-12-12
申请人： Toyota Motor Corp , トヨタ自動車株式会社 , Toyota Central R&D Labs Inc , 株式会社豊田中央研究所
发明人： MIURA MASAHIDE , MORIKAWA AKIRA , TANABE TOSHITAKA
IPC分类号： C01G25/00 , B01D53/86 , B01J20/06
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： PROBLEM TO BE SOLVED: To provide an oxygen storage material for an exhaust gas purification catalyst having more excellent stability under high temperatures.SOLUTION: There is provided a composite oxide material which contains crystalline particles having a pyrochlore structure of a ceria-zirconia composite oxide and crystals having a fluorite structure of a ceria-zirconia composite oxide present on the particles surface, wherein crystals having a fluorite structure of the ceria-zirconia composite oxide contain more zirconia than ceria and are integrated with the crystalline particles having a pyrochlore structure of the ceria-zirconia composite oxide. The composite oxide material has high oxygen storage capacity and has characteristics of hardly causing deterioration in oxygen storage capacity even under high temperatures.
摘要翻译：要解决的问题：提供一种在高温下具有更好的稳定性的废气净化催化剂的储氧材料。溶解性：提供一种复合氧化物材料，其含有具有氧化铈 - 氧化锆复合氧化物的烧绿石结构的结晶颗粒，具有存在于颗粒表面上的二氧化铈 - 氧化锆复合氧化物的萤石结构的晶体，其中具有二氧化铈 - 氧化锆复合氧化物的萤石结构的晶体比二氧化铈含有更多的氧化锆，并且与具有二氧化铈烧绿石结构的结晶颗粒一体化氧化锆复合氧化物。复合氧化物材料具有高的储氧能力，并且即使在高温下也具有几乎不引起储氧能力劣化的特征。

2. 发明专利

JP2013122179A Exhaust emission control device for internal combustion engine 审中-公开
标题翻译：用于内燃机的排气排放控制装置
公开(公告)号：JP2013122179A
公开(公告)日：2013-06-20
申请号：JP2011270325
申请日：2011-12-09
申请人： Toyota Motor Corp , トヨタ自動車株式会社 , Toyota Central R&D Labs Inc , 株式会社豊田中央研究所
发明人： HAYASHI TAKAHIRO , MORIKAWA AKIRA
IPC分类号： F01N3/08 , B01D53/94 , F01N3/24 , F01N3/28 , F02D41/14
CPC分类号： Y02T10/24
摘要： PROBLEM TO BE SOLVED: To improve deterioration in fuel consumption for NOreduction in exhaust gas, in an exhaust emission control device for an internal combustion engine provided with a NOreduction catalyst device carrying a base metal catalyst and having low NOreduction performance.SOLUTION: An exhaust emission control device for an internal combustion engine includes: a first NOreduction catalyst device 40 carrying a base metal catalyst disposed at an exhaust passage 30; a second NOreduction catalyst device 50 disposed at the exhaust passage at a downstream side of the first NOreduction catalyst device and having ammonia storage capability; and a first NOsensor 80 disposed at the exhaust passage at a downstream side of the second NOreduction catalyst device. After a combustion air-fuel ratio of the internal combustion engine is made richer than a theoretical air-fuel ratio, the combustion air-fuel ratio of the internal combustion engine is made leaner than the theoretical air-fuel ratio. When the combustion air-fuel ratio of the internal combustion engine is made leaner than the theoretical air-fuel ratio, if NOis detected by the first NOsensor, the combustion air-fuel ratio of the internal combustion engine is made richer than the theoretical air-fuel ratio.
摘要翻译：要解决的问题：为了提高排气中的NO X 的燃料消耗的劣化，在内燃机的排气排放控制装置中， SB POS =“POST”> X 还原催化剂装置，其具有贱金属催化剂并且具有低NO X 还原性能。解决方案：一种用于内燃机的废气排放控制装置，包括：承载设置在排气通道30处的贱金属催化剂的第一NOS SB POS =“X”SB“还原催化剂装置40; 设置在第一NO SB SB“还原催化剂装置的下游侧的排气通道处的第二NOS SB POS =”X“SB”还原催化剂装置“，以及具有氨储存能力; 以及设置在第二NO ”> X“还原催化剂装置的下游侧的排气通道处的第一NO X 传感器80。在内燃机的燃烧空燃比变得比理论空燃比更浓之后，使内燃机的燃烧空燃比比理论空燃比更稀。当内燃机的燃烧空燃比比理论空燃比更精细时，如果通过第一NO X “> X 传感器，使内燃机的燃烧空燃比变得比理论空燃比更浓。版权所有（C）2013，JPO＆INPIT

3. 发明专利

JP2013122177A Exhaust emission control device for internal combustion engine 有权
标题翻译：用于内燃机的排气排放控制装置
公开(公告)号：JP2013122177A
公开(公告)日：2013-06-20
申请号：JP2011270311
申请日：2011-12-09
申请人： Toyota Motor Corp , トヨタ自動車株式会社 , Toyota Central R&D Labs Inc , 株式会社豊田中央研究所
发明人： HAYASHI TAKAHIRO , MORIKAWA AKIRA
IPC分类号： F01N3/08 , B01D53/94 , F01N3/10 , F01N3/20 , F01N3/24
CPC分类号： Y02T10/24
摘要： PROBLEM TO BE SOLVED: To improve deterioration in fuel consumption for NOreduction, in an exhaust emission control device for an internal combustion engine with a NOreduction catalyst device carrying a base metal catalyst and having low NOreduction performance.SOLUTION: A NOreduction catalyst device 40 carrying a base metal catalyst is disposed at a third exhaust passage 30 positioned at a downstream side of a confluence part 100 between a first exhaust passage 10 of a first cylinder group and a second exhaust passage 20 of a second cylinder group. A NOstorage device 50 is disposed at the second exhaust passage. A communication passage 60 communicating the second exhaust passage at a downstream side of the NOstorage device with the third exhaust passage at a downstream side of the NOstorage device is provided. When a combustion air-fuel ratio of the first cylinder group is made rich and when a combustion air-fuel ratio of the second cylinder group is made lean, exhaust gas flowing out from the NOstorage device passes through the communication passage. When the combustion air-fuel ratio of the second cylinder group is made rich, the exhaust gas flowing out from the NOstorage device passes through the NOreduction catalyst device.
摘要翻译：要解决的问题为了改善NO X 的燃料消耗的劣化，在具有NO X 还原性能的“X”SB“还原催化剂装置”。
解决方案：承载贱金属催化剂的NOS SB POS =“POST”> X“还原催化剂装置40设置在位于汇合部100的下游侧的第三排气通道30之间，位于第一第一气缸组的排气通道10和第二气缸组的第二排气通道20。存储装置50设置在第二排气通道中。否则，将 X 存储装置50。在NO X 存储装置的下游侧将第二排气通道与NO X 存储设备。当第一气缸组的燃烧空燃比变浓时，当第二气缸组的燃烧空燃比变稀时，从NO X < SB>存储装置通过通信通道。当第二气缸组的燃烧空燃比变浓时，从NO X 储存装置流出的废气通过NO X 还原催化剂装置。版权所有（C）2013，JPO＆INPIT

4. 发明专利

JP2013022507A Exhaust gas purification catalyst and method of producing the same 审中-公开
标题翻译：排气净化催化剂及其生产方法
公开(公告)号：JP2013022507A
公开(公告)日：2013-02-04
申请号：JP2011159102
申请日：2011-07-20
申请人： Toyota Motor Corp , トヨタ自動車株式会社 , Toyota Central R&D Labs Inc , 株式会社豊田中央研究所
发明人： TAKAGI SHIGEJI , WATABE GAO , MORIKAWA AKIRA , HIROSE TAKUTO , NAGAI YASUTAKA
IPC分类号： B01J23/76 , B01D53/94 , B01J37/04 , B01J37/08 , F01N3/10
摘要： PROBLEM TO BE SOLVED: To provide an exhaust gas purification catalyst having excellent exhaust gas purification performance under a relatively low temperature condition and excellent heat endurance, and to provide a method of producing the exhaust gas purification catalyst.SOLUTION: The exhaust gas purification catalyst includes: at least one Group-XIII element oxide; at least either one of at least one lanthanoid oxide and at least one Group-IV element oxide; and particles including at least one base metal selected from a group comprising copper etc. An average particle size of the particles including the base metal is 1-1,000 nm. An average distance between the particles including the base metal and the Group-XIII element oxide nearest to the particles is 60 nm or less, and an average distance between the particles including the base metal and the lanthanoid oxide and/or the Group-IV element oxide nearest to the particles is 60 nm or less.
摘要翻译：解决的问题：提供一种在相对低的温度条件下具有优异的废气净化性能和优异的耐热性的废气净化催化剂，并提供一种生产废气净化催化剂的方法。废气净化催化剂包括：至少一种第ⅩⅢ族元素氧化物; 至少一种镧系元素氧化物和至少一种IV族元素氧化物中的至少一种; 以及包含选自铜等的至少一种母体金属的粒子。包含母体金属的粒子的平均粒径为1-1000nm。包括贱金属和最接近粒子的第ⅩⅢ族元素氧化物的粒子之间的平均距离为60nm以下，包含贱金属和镧系元素氧化物的粒子和/或IV族元素之间的平均距离最接近粒子的氧化物为60nm以下。版权所有（C）2013，JPO＆INPIT

5. 发明专利

JP2012024701A Catalyst for purifying exhaust gas 有权
标题翻译：用于净化排气的催化剂
公开(公告)号：JP2012024701A
公开(公告)日：2012-02-09
申请号：JP2010166101
申请日：2010-07-23
申请人： Toyota Central R&D Labs Inc , Toyota Motor Corp , トヨタ自動車株式会社 , 株式会社豊田中央研究所
发明人： NOBUKAWA KEN , KUNO HISASHI , MORIKAWA AKIRA , YAMAMURA YOSHIE , TAKAHASHI NAOKI , SUDA AKIHIKO
IPC分类号： B01J23/63 , B01D53/94 , F01N3/10
CPC分类号： B01J35/04 , B01D53/945 , B01D2255/1021 , B01D2255/1023 , B01D2255/1025 , B01D2255/2065 , B01D2255/20715 , B01D2255/407 , B01D2255/908 , B01J23/63 , B01J37/0244 , Y02T10/22
摘要： PROBLEM TO BE SOLVED: To provide a catalyst for purifying exhaust gas, having high NOpurifying performance after endurance.SOLUTION: The catalyst for purifying exhaust gas includes: a first oxygen absorption/emission material that does not support a noble metal and has a regulatory formation structure of a pyrochlore phase type; and a second oxygen absorption/emission material that has higher oxygen absorption/emission speed and lower oxygen absorption/emission capacity than the first oxygen absorption/emission material, wherein the second oxygen absorption/emission material supports the platinum group noble metal.
摘要翻译：要解决的问题：提供耐久性高的NO X 净化性能的排气净化催化剂。解决方案：用于净化废气的催化剂包括：不支持贵金属并具有烧绿石相类型的调节形成结构的第一氧吸收/发射材料; 以及第二氧吸收/发射材料，其具有比第一氧吸收/发射材料更高的氧吸收/发射速度和更低的氧吸收/释放能力，其中第二氧吸收/发射材料支撑铂族贵金属。版权所有（C）2012，JPO＆INPIT

6. 发明专利

JP2011144421A Precious-metal-based colloidal solution and method for producing the same 有权
标题翻译：基于金属的金属溶液及其生产方法
公开(公告)号：JP2011144421A
公开(公告)日：2011-07-28
申请号：JP2010005620
申请日：2010-01-14
申请人： Toyota Central R&D Labs Inc , Toyota Motor Corp , トヨタ自動車株式会社 , 株式会社豊田中央研究所
发明人： SATO KIMITOSHI , YAMAMURA YOSHIE , MORIKAWA AKIRA , SUDA AKIHIKO , NAGAO SATOSHI , HIRATA HIROTO
IPC分类号： B22F9/24 , B01F17/52 , B01J13/00
摘要： PROBLEM TO BE SOLVED: To provide a precious-metal-based colloidal solution that has precious-metal-based fine particles uniformly dispersed therein which have a small particle size and are uniform, and is superior in storability, and to provide a method for producing the same.
SOLUTION: The precious-metal-based colloidal solution includes at least one precious-metal-based fine particle selected from the group consisting of a precious-metal fine particle, a precious-metal-alloy fine particle, a precious-metal-compound fine particle and a precious-metal-alloyed compound fine particle, and a polymeric dispersing agent. As for a particle size of the precious-metal-based fine particles, a particle size D
50 at which the accumulated mass in the particle size distribution reaches 50% is 0.8-5.0 nm, and a particle size D
90 at which the accumulated mass reaches 90% is 2.5 times of the particle size D
50 or smaller.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：解决问题：提供一种贵金属系的胶体溶液，其具有均匀分散在其中的具有小颗粒尺寸并且均匀且具有优异的储存性的贵金属微细颗粒，并提供一种其制造方法解决方案：贵金属基胶体溶液包括至少一种选自贵金属微粒，贵金属合金微粒，贵金属微细的贵金属微细颗粒复合微粒和贵金属合金化合物微粒，以及聚合物分散剂。对于贵金属类微粒的粒径，粒径分布达到50％时的累积质量为0.8〜5.0nm的粒径D 50 ，粒径累积质量达到90％的D 90 是粒径D 50 以下的2.5倍。版权所有（C）2011，JPO＆INPIT

7. 发明专利

JP2015034113A セリア−ジルコニア系複合酸化物及びその製造方法、並びにそのセリア−ジルコニア系複合酸化物を用いた排ガス浄化用触媒有权
标题翻译： CERIA-ZIRCONIA复合氧化物及其制造方法，作为使用同样的气体清洁催化剂的CERIA-ZIRCONIA复合氧化物
公开(公告)号：JP2015034113A
公开(公告)日：2015-02-19
申请号：JP2013166336
申请日：2013-08-09
申请人：株式会社豊田中央研究所 , Toyota Central R&D Labs Inc , トヨタ自動車株式会社 , Toyota Motor Corp , 株式会社キャタラー , Cataler Corp
发明人： MORIKAWA AKIRA , KONISHI YOSHIE , TANABE TOSHITAKA , SUDA AKIHIKO , MIURA MASAHIDE , CHINZEI ISAO , SUZUKI HIROMASA , CHIBA AKIYA , IIZUKA KOSUKE
IPC分类号： C01G25/00 , B01J23/10 , C04B35/48 , C04B35/50
CPC分类号： B01J23/10 , B01D53/94 , B01D2255/407 , B01D2255/908 , B01D2255/9202 , B01J23/002 , B01J23/63 , B01J35/002 , B01J35/023 , B01J37/0009 , B01J37/0036 , B01J37/0063 , B01J37/03 , B01J37/08 , B01J37/12 , B01J37/14 , B01J37/16 , C01G25/00 , C01P2002/36 , C01P2002/50 , C01P2002/72 , C01P2006/12 , C04B35/488 , C04B35/50 , C04B35/6261 , C04B35/6265 , C04B2235/3229 , C04B2235/3244 , C04B2235/443 , C04B2235/5436 , C04B2235/5463 , C04B2235/604 , C04B2235/661 , C04B2235/664 , C04B2235/76 , C04B2235/80
摘要：【課題】十分に優れた酸素貯蔵能(OSC)と十分に高度な耐熱性とを併せ持ち、高温に長時間晒された後においても十分に優れた酸素貯蔵能(OSC)を発揮することが可能なセリア−ジルコニア系複合酸化物を提供すること。【解決手段】セリア及びジルコニアの複合酸化物を含むセリア−ジルコニア系複合酸化物であって、前記セリア−ジルコニア系複合酸化物における粒子径1.5〜4.5μmの一次粒子が該複合酸化物の全一次粒子に対して粒子数基準で50%以上であり、前記セリア−ジルコニア系複合酸化物におけるセリウムとジルコニウムとの含有比率がモル比([セリウム]:[ジルコニウム])で43:57〜55:45の範囲にあり、かつ、大気中、1100℃の温度条件で5時間加熱後のX線回折測定により得られるCuKαを用いたX線回折パターンから求められる2&thetas;=14.5?の回折線と2&thetas;=29?の回折線との強度比{I(14/29)値}及び2&thetas;=28.5?の回折線と2&thetas;=29?の回折線との強度比{I(28/29)値}がそれぞれ以下の条件:I(14/29)値≧0.015I(28/29)値≦̸0.08を満たすものであることを特徴とするセリア−ジルコニア系複合酸化物。【選択図】なし
摘要翻译：要解决的问题：为了提供同时具有足够优异的储氧能力（OSC）和足够高的耐热性并且能够显现出足够优异的储氧能力（OSC）的二氧化铈 - 氧化锆复合氧化物，即使在暴露于提供的氧化铈 - 氧化锆复合氧化物是二氧化铈 - 氧化锆复合氧化物，其包括二氧化铈和氧化锆的复合氧化物，其中二氧化铈 - 氧化锆的初级颗粒的粒子数之比相对于复合氧化物的所有一次粒子，直径为1.5-4.5μm的复合氧化物的含量为50％以上，其中以铈和锆的摩尔比（[铈]：（锆]）计）二氧化铈 - 氧化锆复合氧化物被限制在43:57-55:45的范围内，其中衍射线的强度比为2＆amp; t = 14.5°相对于衍射相对于2的衍射线，衍射线的强度比为2＆thetas; = 28.5°; = 29°[I（14/29）值] = 29°[I（14/29）值] 值）分别满足以下条件：使用CuKα的X射线衍射图，由在大气中在1,100℃的温度条件下加热5小时后进行的X射线衍射测定得到的X射线衍射图， 14/29）值≥0.015，I（28/29）值≤0.08。

8. 发明专利

JP2014000552A Catalyst carrier for exhaust gas purification, catalyst for exhaust gas purification using the same, production method of catalyst carrier for exhaust gas purification 有权
标题翻译：用于排气净化的催化载体，用于排气净化的催化剂，用于排气净化的催化剂载体的生产方法
公开(公告)号：JP2014000552A
公开(公告)日：2014-01-09
申请号：JP2012138958
申请日：2012-06-20
申请人： Toyota Central R&D Labs Inc , 株式会社豊田中央研究所 , Toyota Motor Corp , トヨタ自動車株式会社
发明人： MORIKAWA AKIRA , SATO KIMITOSHI , YAMAMURA YOSHIE , KUMAGAI NAOKI , SUDA AKIHIKO , HAYASHI TAKAHIRO , NOBUKAWA KEN
IPC分类号： B01J23/76 , B01D53/94
摘要： PROBLEM TO BE SOLVED: To provide a catalyst carrier for exhaust gas purification that can obtain a transition metal carrier catalyst that shows excellent catalytic activity even when being exposed to high temperature, especially high catalytic activity from comparatively cold temperature.SOLUTION: A catalyst carrier for exhaust gas purification comprises a complex metal oxide porous body including alumina, ceria, and zirconia, an inclusion ratio of the alumina being 30-80 mass%, wherein in the complex metal oxide porous body after burning for 5 hours in air at 1100°C, in 100 fine small regions (one fine small region is length 300 nm×width 330 nm) obtained from an energy dispersion type X-ray analysis performed by a scan transmission electron microscope with a spherical surface aberration correction device, a condition in which standard deviations of an inclusion ratio (unit: at%) of an aluminum element, a cerium element and a zirconium element are all at most 19 is satisfied.
摘要翻译：要解决的问题：提供一种用于排气净化的催化剂载体，其可以获得即使在相对较低的温度下暴露于高温下特别高的催化活性时也显示出优异的催化活性的过渡金属载体催化剂。溶解：用于排气净化包括含有氧化铝，二氧化铈和氧化锆的复合金属氧化物多孔体，氧化铝的包含率为30〜80质量％，其中在空气中在1100℃下烧成5小时后的复合金属氧化物多孔体中在由具有球面像差校正装置的扫描透射电子显微镜进行的能量分散型X射线分析得到的100个细小区域（一个细小区域，长度300nm×宽度330nm）中，标准铝元素，铈元素和锆元素的包含率（单位：原子％）的偏差全部为19以上。

9. 发明专利

JP2013215651A Compound oxide and method for producing the same, and exhaust gas purifying catalyst 有权
标题翻译：化合物及其制造方法，以及排气净化催化剂
公开(公告)号：JP2013215651A
公开(公告)日：2013-10-24
申请号：JP2012086825
申请日：2012-04-05
申请人： Toyota Motor Corp , トヨタ自動車株式会社 , Toyota Central R&D Labs Inc , 株式会社豊田中央研究所
发明人： KUMAGAI NAOKI , MIURA MASAHIDE , HONMA YUJIRO , TANABE TOSHITAKA , MORIKAWA AKIRA , YAMAMURA YOSHIE
IPC分类号： B01J23/63 , B01D53/94 , B01J37/04 , F01N3/10
摘要： PROBLEM TO BE SOLVED: To provide a compound oxide in which a pyrochlore phase is stabilized by arranging a diffusion barrier around the pyrochlore phase and which is excellent in an oxygen storage capacity and is used for an exhaust gas purifying catalyst, and to provide an exhaust gas purifying catalyst including the compound oxide, and further, a method for producing the compound oxide.SOLUTION: A compound oxide is composed of an MgAlO-CeO-ZrOternary system compound oxide, and has a pyrochlore phase in which Ce and Zr are regularly arrayed. A method for producing the compound oxide includes: a step of adding a precipitant to a solution containing a cerium compound and a zirconium compound to form a first coprecipitate, firing it, and obtaining a first fired material; a step of adding a precipitant to a solution containing a magnesium compound and an aluminum compound to form a second coprecipitate, firing it, and obtaining a second fired material; and a step of producing the compound oxide which is composed of the MgAlO-CeO-ZrOternary system compound oxide, and has the pyrochlore phase in which Ce and Zr are regularly arrayed, by mixing, heating and reducing the first and second fired materials.
摘要翻译：要解决的问题：为了提供通过在烧绿石相周围设置扩散阻挡层来稳定烧绿石相的复合氧化物，其具有优异的储氧能力并且用于排气净化催化剂，并且提供排气包括复合氧化物的气体净化催化剂，以及复合氧化物的制造方法。复合氧化物由MgAlO-CeO-Zr系复合氧化物构成，具有烧绿石相，其中Ce和Zr规则排列。复合氧化物的制造方法包括：将沉淀剂添加到含有铈化合物和锆化合物的溶液中，形成第一共沉淀物，烧成，得到第一烧成物的工序; 向含有镁化合物和铝化合物的溶液中添加沉淀剂以形成第二共沉淀物，烧制，得到第二烧成物的工序; 以及通过混合，加热和还原第一和第二烧制材料，制备由MgAlO-CeO-Zr复合氧化物组成的复合氧化物并具有规则排列Ce和Zr的烧绿石相的步骤。

10. 发明专利

JP2012217875A Base metal exhaust gas purifying catalyst, method for producing carrier, method for producing catalyst, and exhaust emission control device 有权
标题翻译：碱金属废气净化催化剂，生产载体的方法，生产催化剂的方法和排气控制装置
公开(公告)号：JP2012217875A
公开(公告)日：2012-11-12
申请号：JP2011083063
申请日：2011-04-04
申请人： Toyota Motor Corp , Toyota Central R&D Labs Inc , トヨタ自動車株式会社 , 株式会社豊田中央研究所
发明人： WATABE GAO , TAKAGI SHIGEJI , MORIKAWA AKIRA , HIROSE TAKUTO
IPC分类号： B01J23/76 , B01D53/94 , B01J23/50 , B01J23/745 , B01J37/02 , F01N3/10
CPC分类号： F01N3/20 , B01D53/9413 , B01D53/944 , B01D53/9477 , B01D2255/2065 , B01D2255/20715 , B01D2255/20761 , B01J21/066 , B01J23/10 , B01J23/83 , B01J35/008 , B01J35/023 , B01J37/035
摘要： PROBLEM TO BE SOLVED: To provide an NOx purifying catalyst that uses base metal as catalyst metal and has purifying capacity at a low temperature (250°C or lower) and at a high temperature (500°C or higher), a method for producing a carrier, a method for producing a catalyst, and an exhaust emission control device.SOLUTION: The exhaust gas purifying catalyst includes base metal nanoparticles dispersedly carried on a powdery carrier. The carrier contains at least ceria particles and zirconia particles, and the particle diameter of the ceria particles is smaller than that of the zirconia particles. It is preferable that the particle diameter of the ceria particles is 1-9 nm, that the percentage of the ceria particles to the zirconia particles is 5-30 wt.% and that the particle diameter of the zirconia particles is 5-50 nm.
摘要翻译：要解决的问题：为了提供使用贱金属作为催化剂金属并且在低温（250℃以下）和高温（500℃以上）下的净化能力的NOx净化催化剂，载体的制造方法，催化剂的制造方法以及废气排放控制装置。解决方案：废气净化催化剂包括分散载持在粉状载体上的贱金属纳米颗粒。载体至少含有二氧化铈颗粒和氧化锆颗粒，二氧化铈颗粒的粒径小于氧化锆颗粒的粒径。二氧化铈粒子的粒径优选为1〜9nm，二氧化铈粒子与氧化锆粒子的比例为5〜30重量％，氧化锆粒子的粒径为5〜50nm。版权所有（C）2013，JPO＆INPIT

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式