ZA200506234B - Catalyst for purifying exhaust gases and process for producing the same - Google Patents
Catalyst for purifying exhaust gases and process for producing the same Download PDFInfo
- Publication number
- ZA200506234B ZA200506234B ZA200506234A ZA200506234A ZA200506234B ZA 200506234 B ZA200506234 B ZA 200506234B ZA 200506234 A ZA200506234 A ZA 200506234A ZA 200506234 A ZA200506234 A ZA 200506234A ZA 200506234 B ZA200506234 B ZA 200506234B
- Authority
- ZA
- South Africa
- Prior art keywords
- oxide powder
- value
- catalyst
- noble metal
- exhaust gases
- Prior art date
Links
- 239000003054 catalyst Substances 0.000 title claims description 56
- 239000007789 gas Substances 0.000 title claims description 31
- 238000000034 method Methods 0.000 title claims description 18
- 230000008569 process Effects 0.000 title claims description 11
- 239000000843 powder Substances 0.000 claims description 98
- 229910000510 noble metal Inorganic materials 0.000 claims description 59
- 239000000725 suspension Substances 0.000 claims description 58
- 239000007864 aqueous solution Substances 0.000 claims description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 26
- 150000003839 salts Chemical class 0.000 claims description 18
- 239000012266 salt solution Substances 0.000 claims description 16
- 238000011068 loading method Methods 0.000 claims description 10
- 229910052746 lanthanum Inorganic materials 0.000 claims description 6
- 230000001747 exhibiting effect Effects 0.000 claims description 5
- 229910052727 yttrium Inorganic materials 0.000 claims description 5
- 229910052726 zirconium Inorganic materials 0.000 claims description 4
- 229910052779 Neodymium Inorganic materials 0.000 claims description 3
- 239000002131 composite material Substances 0.000 description 57
- HSJPMRKMPBAUAU-UHFFFAOYSA-N cerium(3+);trinitrate Chemical compound [Ce+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O HSJPMRKMPBAUAU-UHFFFAOYSA-N 0.000 description 22
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 17
- 229910002091 carbon monoxide Inorganic materials 0.000 description 17
- 230000000052 comparative effect Effects 0.000 description 14
- 239000002923 metal particle Substances 0.000 description 12
- UJVRJBAUJYZFIX-UHFFFAOYSA-N nitric acid;oxozirconium Chemical compound [Zr]=O.O[N+]([O-])=O.O[N+]([O-])=O UJVRJBAUJYZFIX-UHFFFAOYSA-N 0.000 description 10
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Natural products N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 9
- 229910000069 nitrogen hydride Inorganic materials 0.000 description 9
- 239000002994 raw material Substances 0.000 description 9
- 230000000694 effects Effects 0.000 description 8
- 239000000243 solution Substances 0.000 description 7
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 6
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 5
- 238000001354 calcination Methods 0.000 description 5
- FYDKNKUEBJQCCN-UHFFFAOYSA-N lanthanum(3+);trinitrate Chemical compound [La+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O FYDKNKUEBJQCCN-UHFFFAOYSA-N 0.000 description 5
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 5
- 239000001301 oxygen Substances 0.000 description 5
- 229910052760 oxygen Inorganic materials 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
- 239000002244 precipitate Substances 0.000 description 5
- 239000002253 acid Substances 0.000 description 4
- 238000001035 drying Methods 0.000 description 4
- 238000001704 evaporation Methods 0.000 description 4
- 229910002651 NO3 Inorganic materials 0.000 description 3
- 230000032683 aging Effects 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- 239000006104 solid solution Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 2
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 2
- 235000011114 ammonium hydroxide Nutrition 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 150000002823 nitrates Chemical class 0.000 description 2
- 229910017604 nitric acid Inorganic materials 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 241000220317 Rosa Species 0.000 description 1
- 150000001242 acetic acid derivatives Chemical class 0.000 description 1
- 238000010306 acid treatment Methods 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000000975 co-precipitation Methods 0.000 description 1
- 239000011362 coarse particle Substances 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229910052878 cordierite Inorganic materials 0.000 description 1
- JSKIRARMQDRGJZ-UHFFFAOYSA-N dimagnesium dioxido-bis[(1-oxido-3-oxo-2,4,6,8,9-pentaoxa-1,3-disila-5,7-dialuminabicyclo[3.3.1]nonan-7-yl)oxy]silane Chemical compound [Mg++].[Mg++].[O-][Si]([O-])(O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2)O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2 JSKIRARMQDRGJZ-UHFFFAOYSA-N 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 150000003840 hydrochlorides Chemical class 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 229910052809 inorganic oxide Inorganic materials 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 229910052741 iridium Inorganic materials 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- CFYGEIAZMVFFDE-UHFFFAOYSA-N neodymium(3+);trinitrate Chemical compound [Nd+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O CFYGEIAZMVFFDE-UHFFFAOYSA-N 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- -1 nitrate ions Chemical class 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 238000001226 reprecipitation Methods 0.000 description 1
- 229910052703 rhodium Inorganic materials 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
- B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
- B01D53/9445—Simultaneously removing carbon monoxide, hydrocarbons or nitrogen oxides making use of three-way catalysts [TWC] or four-way-catalysts [FWC]
- B01D53/945—Simultaneously removing carbon monoxide, hydrocarbons or nitrogen oxides making use of three-way catalysts [TWC] or four-way-catalysts [FWC] characterised by a specific catalyst
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
- B01J23/54—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/56—Platinum group metals
- B01J23/63—Platinum group metals with rare earths or actinides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
- B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
- B01J23/54—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/56—Platinum group metals
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/02—Impregnation, coating or precipitation
- B01J37/0201—Impregnation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
- B01J21/06—Silicon, titanium, zirconium or hafnium; Oxides or hydroxides thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
- B01J21/06—Silicon, titanium, zirconium or hafnium; Oxides or hydroxides thereof
- B01J21/066—Zirconium or hafnium; Oxides or hydroxides thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/10—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of rare earths
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/02—Impregnation, coating or precipitation
- B01J37/03—Precipitation; Co-precipitation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003033842A JP2004261641A (ja) | 2003-02-12 | 2003-02-12 | 排ガス浄化用触媒及びその製造方法 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ZA200506234B true ZA200506234B (en) | 2006-05-31 |
Family
ID=32866248
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ZA200506234A ZA200506234B (en) | 2003-02-12 | 2005-08-04 | Catalyst for purifying exhaust gases and process for producing the same |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US20060105908A1 (ja) |
| EP (1) | EP1592493A1 (ja) |
| JP (1) | JP2004261641A (ja) |
| KR (1) | KR100745117B1 (ja) |
| CN (1) | CN100337726C (ja) |
| WO (1) | WO2004071627A1 (ja) |
| ZA (1) | ZA200506234B (ja) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006068665A (ja) * | 2004-09-03 | 2006-03-16 | Toyota Motor Corp | 排ガス浄化触媒の製造方法及び排ガス浄化触媒 |
| JP4778724B2 (ja) * | 2005-05-02 | 2011-09-21 | 株式会社キャタラー | 硫化水素発生抑制触媒 |
| JP4175387B2 (ja) * | 2006-05-31 | 2008-11-05 | トヨタ自動車株式会社 | 排ガス浄化触媒製造方法 |
| JP4265626B2 (ja) | 2006-07-12 | 2009-05-20 | トヨタ自動車株式会社 | 触媒担体粒子及びその製造方法、並びに排ガス浄化触媒 |
| JP2008114107A (ja) * | 2006-11-01 | 2008-05-22 | Toyota Motor Corp | 自動車排ガス浄化用触媒およびその製造方法 |
| JP5082558B2 (ja) * | 2007-04-13 | 2012-11-28 | トヨタ自動車株式会社 | 排ガス浄化用触媒の製造方法 |
| JP4816694B2 (ja) * | 2008-07-31 | 2011-11-16 | トヨタ自動車株式会社 | 自動車排ガス浄化用触媒の製造方法 |
| FR2939695B1 (fr) * | 2008-12-17 | 2011-12-30 | Saint Gobain Ct Recherches | Structure de purification incorporant un systeme de catalyse supporte par une zircone a l'etat reduit. |
| CN103557061A (zh) * | 2013-11-06 | 2014-02-05 | 苏州佑瑞检测技术有限公司 | 一种固液混合式汽车尾气净化装置 |
| EP4166505A1 (en) * | 2020-06-10 | 2023-04-19 | Umicore Shokubai Japan Co., Ltd. | Ce-zr composite oxide and exhaust gas cleaning catalyst using same |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4760044A (en) * | 1987-06-15 | 1988-07-26 | Allied-Signal Inc. | Catalyst for minimizing the H2 S emissions from automotive exhaust and method of its manufacture |
| DE3735033A1 (de) * | 1987-10-16 | 1989-04-27 | Duerrwaechter E Dr Doduco | Katalysator und verfahren zu seiner herstellung |
| FR2714370B1 (fr) * | 1993-12-24 | 1996-03-08 | Rhone Poulenc Chimie | Précurseur d'une composition et composition à base d'un oxyde mixte de cérium et de zirconium, procédé de préparation et utilisation. |
| KR0166023B1 (ko) * | 1994-09-28 | 1998-12-15 | 엄길용 | 섀도우마스크의 열처리방법 |
| US6248688B1 (en) * | 1996-09-27 | 2001-06-19 | Engelhard Corporation | Catalyst composition containing oxygen storage components |
| US5898014A (en) * | 1996-09-27 | 1999-04-27 | Engelhard Corporation | Catalyst composition containing oxygen storage components |
| US6107240A (en) * | 1997-03-26 | 2000-08-22 | Engelhard Corporation | Catalyst composition containing an intimately mixed oxide of cerium and praseodymium |
| US5888464A (en) * | 1997-04-08 | 1999-03-30 | Engelhard Corporation | Catalyst composition containing an intimately combined cerium-zirconium oxide |
| JP3479980B2 (ja) * | 1997-04-23 | 2003-12-15 | トヨタ自動車株式会社 | 排ガス浄化方法及び排ガス浄化用触媒 |
| JP2000176282A (ja) * | 1998-12-16 | 2000-06-27 | Toyota Central Res & Dev Lab Inc | リーン排ガス浄化用触媒 |
| EP1046423B8 (en) * | 1999-04-23 | 2007-11-21 | Umicore AG & Co. KG | Layered noble metal-containing exhaust gas catalyst and its preparation |
| JP4041260B2 (ja) * | 2000-03-02 | 2008-01-30 | 日本電子株式会社 | 荷電粒子ビーム装置及び荷電粒子ビーム装置の制御方法 |
| JP3858625B2 (ja) * | 2000-07-27 | 2006-12-20 | 株式会社豊田中央研究所 | 複合酸化物とその製造方法及び排ガス浄化用触媒とその製造方法 |
-
2003
- 2003-02-12 JP JP2003033842A patent/JP2004261641A/ja active Pending
-
2004
- 2004-02-09 KR KR1020057014845A patent/KR100745117B1/ko not_active IP Right Cessation
- 2004-02-09 EP EP04709326A patent/EP1592493A1/en not_active Withdrawn
- 2004-02-09 CN CNB2004800041364A patent/CN100337726C/zh not_active Expired - Fee Related
- 2004-02-09 WO PCT/JP2004/001350 patent/WO2004071627A1/en active Search and Examination
- 2004-02-09 US US10/545,068 patent/US20060105908A1/en not_active Abandoned
-
2005
- 2005-08-04 ZA ZA200506234A patent/ZA200506234B/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CN1750865A (zh) | 2006-03-22 |
| CN100337726C (zh) | 2007-09-19 |
| JP2004261641A (ja) | 2004-09-24 |
| WO2004071627A1 (en) | 2004-08-26 |
| US20060105908A1 (en) | 2006-05-18 |
| KR20050102104A (ko) | 2005-10-25 |
| KR100745117B1 (ko) | 2007-08-01 |
| EP1592493A1 (en) | 2005-11-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| ZA200506234B (en) | Catalyst for purifying exhaust gases and process for producing the same | |
| KR910004071B1 (ko) | 배기가스 정화용 촉매 | |
| JP4959129B2 (ja) | 排ガス浄化用触媒 | |
| US4170573A (en) | Rare earth and platinum group metal catalyst compositions | |
| EP0832688B1 (en) | Exhaust gas purifying catalyst and exhaust gas purifying method | |
| JP2018528847A (ja) | 排気システム用の亜酸化窒素除去触媒 | |
| JP2002535135A (ja) | 酸素貯蔵成分を含有する触媒組成物 | |
| JP2020528348A (ja) | リーン／リッチシステムのための自動車排気からのｎ２ｏ除去 | |
| KR20060100447A (ko) | 디젤 입자 필터용 촉매 | |
| US5919727A (en) | Ceric oxide washcoat | |
| KR101147055B1 (ko) | 배기 가스 정화용 촉매 | |
| JPH05237390A (ja) | 排気ガス浄化用触媒 | |
| JP2003246624A (ja) | パイロクロア型酸化物の製造方法 | |
| US20220154612A1 (en) | Catalyzed gasoline particulate filter | |
| JP4794834B2 (ja) | 排ガス浄化用触媒 | |
| JP4979087B2 (ja) | 複合酸化物粉末、その製造方法及び製造装置、並びに排ガス浄化用触媒 | |
| JP5030573B2 (ja) | 複合酸化物粉末及びその製造方法 | |
| JPS6117544B2 (ja) | ||
| JP4775953B2 (ja) | 排ガス浄化用触媒及びその再生方法 | |
| KR102226797B1 (ko) | 고온에서의 질소산화물 저감성능이 향상된 deNOx 촉매, 이의 제조방법, 및 이를 이용한 deNOx 시스템 | |
| CN117019138A (zh) | 用于燃烧发动机的含铂催化剂 | |
| JP3488999B2 (ja) | 排気ガス浄化用触媒組成物およびその製造方法、並びに排気ガス浄化用触媒 | |
| JP4665458B2 (ja) | 排ガス浄化触媒及びその製造方法 | |
| JP3861823B2 (ja) | 排ガス浄化用触媒 | |
| KR102569570B1 (ko) | 산소 저장 화합물을 포함하는 산화 촉매 및 이의 제조 방법 |