JP2006346661A - 排ガス浄化触媒 - Google Patents
排ガス浄化触媒 Download PDFInfo
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- JP2006346661A JP2006346661A JP2005179884A JP2005179884A JP2006346661A JP 2006346661 A JP2006346661 A JP 2006346661A JP 2005179884 A JP2005179884 A JP 2005179884A JP 2005179884 A JP2005179884 A JP 2005179884A JP 2006346661 A JP2006346661 A JP 2006346661A
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- catalyst
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- gas purification
- zirconia
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- 239000003054 catalyst Substances 0.000 title claims abstract description 111
- 238000000746 purification Methods 0.000 title claims abstract description 35
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims abstract description 64
- 230000004888 barrier function Effects 0.000 claims abstract description 37
- 238000009792 diffusion process Methods 0.000 claims abstract description 37
- 229910052751 metal Inorganic materials 0.000 claims abstract description 16
- 239000002184 metal Substances 0.000 claims abstract description 16
- 229910052684 Cerium Inorganic materials 0.000 claims abstract description 14
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000002131 composite material Substances 0.000 claims abstract description 13
- 229910052697 platinum Inorganic materials 0.000 claims description 14
- 229910000420 cerium oxide Inorganic materials 0.000 claims description 13
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 claims description 13
- 239000000758 substrate Substances 0.000 claims description 12
- 229910052763 palladium Inorganic materials 0.000 claims description 10
- MRELNEQAGSRDBK-UHFFFAOYSA-N lanthanum(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[La+3].[La+3] MRELNEQAGSRDBK-UHFFFAOYSA-N 0.000 claims description 7
- 239000000463 material Substances 0.000 abstract description 15
- 230000000977 initiatory effect Effects 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 99
- 239000007789 gas Substances 0.000 description 45
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 40
- 239000010948 rhodium Substances 0.000 description 24
- 239000002002 slurry Substances 0.000 description 19
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 15
- 239000011229 interlayer Substances 0.000 description 14
- 239000002585 base Substances 0.000 description 13
- 229910044991 metal oxide Inorganic materials 0.000 description 11
- 150000004706 metal oxides Chemical class 0.000 description 11
- 239000011230 binding agent Substances 0.000 description 9
- 229910052703 rhodium Inorganic materials 0.000 description 8
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 7
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 6
- 239000006104 solid solution Substances 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 238000001354 calcination Methods 0.000 description 5
- 229930195733 hydrocarbon Natural products 0.000 description 5
- 150000002430 hydrocarbons Chemical class 0.000 description 5
- 239000004215 Carbon black (E152) Substances 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 229910000510 noble metal Inorganic materials 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 3
- QVQLCTNNEUAWMS-UHFFFAOYSA-N barium oxide Chemical compound [Ba]=O QVQLCTNNEUAWMS-UHFFFAOYSA-N 0.000 description 3
- 229910002091 carbon monoxide Inorganic materials 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 238000010304 firing Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 2
- CETPSERCERDGAM-UHFFFAOYSA-N ceric oxide Chemical compound O=[Ce]=O CETPSERCERDGAM-UHFFFAOYSA-N 0.000 description 2
- 229910000422 cerium(IV) oxide Inorganic materials 0.000 description 2
- 239000011247 coating layer Substances 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- RUDFQVOCFDJEEF-UHFFFAOYSA-N yttrium(III) oxide Inorganic materials [O-2].[O-2].[O-2].[Y+3].[Y+3] RUDFQVOCFDJEEF-UHFFFAOYSA-N 0.000 description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 1
- 229910021193 La 2 O 3 Inorganic materials 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 1
- 150000001342 alkaline earth metals Chemical class 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 229910052878 cordierite Inorganic materials 0.000 description 1
- 230000009849 deactivation Effects 0.000 description 1
- 230000002542 deteriorative effect Effects 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
- 239000006185 dispersion Substances 0.000 description 1
- 238000004453 electron probe microanalysis Methods 0.000 description 1
- -1 for example Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 229910052746 lanthanum Inorganic materials 0.000 description 1
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011268 mixed slurry Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- UFQXGXDIJMBKTC-UHFFFAOYSA-N oxostrontium Chemical compound [Sr]=O UFQXGXDIJMBKTC-UHFFFAOYSA-N 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
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Classifications
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- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
- F01N3/28—Construction of catalytic reactors
-
- 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
- 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
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
-
- 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
-
- 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
- B01J37/024—Multiple impregnation or coating
- B01J37/0244—Coatings comprising several layers
-
- 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
- B01J37/024—Multiple impregnation or coating
- B01J37/0248—Coatings comprising impregnated particles
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/105—General auxiliary catalysts, e.g. upstream or downstream of the main catalyst
- F01N3/106—Auxiliary oxidation catalysts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/90—Physical characteristics of catalysts
- B01D2255/902—Multilayered catalyst
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- B01J35/30—
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2370/00—Selection of materials for exhaust purification
- F01N2370/02—Selection of materials for exhaust purification used in catalytic reactors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2510/00—Surface coverings
- F01N2510/06—Surface coverings for exhaust purification, e.g. catalytic reaction
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- 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
Abstract
【解決手段】 基材上12に、Pt又はPdを担持した酸化セリウム−ジルコニア系複合担体を含む第1の触媒層14と、Rhを担持しジルコニアを主成分とする担体を含む第2の触媒層16と、第1の触媒層14と第2の触媒層16との間に位置し、Ceよりも電気陰性度の低い金属の酸化物を含む拡散障壁層18と、を少なくとも有する排ガス浄化触媒10。
【選択図】 図1
Description
(排ガス浄化処理触媒の作製)
1.第1触媒層の形成
ボールミルにて100時間粉砕した1質量%−Pt/CZY粉末(Ptを担持したCeO2、ZrO2、Y2O3からなる固溶体、キャタラー(株)製)100質量部に対して、固形分換算で10質量部のジルコニアゾル(第一希元素化学工業(株)製)と、適量(約5質量部)のイオン交換水を添加し、ボールミルで1時間混合しスラリーを調製した。
ボールミルにて100時間粉砕した高表面酸化セリウム(Ceよりも電気陰性度の低い金属酸化物;阿南化成(株)製)100質量部に対して、固形分換算で10質量部の酸化セリウムゾル(多木化学(株)製)と、適量(約5質量部)のイオン交換水を添加し、ボールミルで1時間混合しスラリーを調製した。
0.5質量%−Rh/ZY(Rhを担持したジルコニア−イットリア固溶体;第一稀元素化学工業(株)製)100質量部に対して、固形分換算で10質量部のジルコニアゾル(第一希元素化学工業(株)製)と、適量(約5質量部)のイオン交換水を添加しスラリーを調製した。
実施例1の「2.拡散障壁層の形成」において、スラリーに含まれる固形分濃度を調整して、拡散障壁層の厚みを下記表1に示す厚さとなるようにした以外は実施例1と同様にして、実施例2〜5の排ガス浄化処理触媒を作製した。尚、拡散障壁層の厚みはSEMを用いて観察した。
実施例1において、拡散障壁層を設けず、第1の触媒層上に直接第2の触媒層を設けた以外は、実施例1と同様にして比較例1の排ガス浄化処理触媒を作製した。
1.耐久試験
○:Ptの層間移動は全く認められなかった。
排ガス浄化処理触媒を密閉し、下記表2に示す組成を有する排ガスを模擬したリッチ雰囲気ガス及びリーン雰囲気ガスを1Hzで繰り返しながら昇温し、HC(C3H6)を50%浄化する温度(HC−T50)を測定した。結果を下記表3に示す。
12 基材
14 第1の触媒層
16 第2の触媒層
18 拡散障壁層
Claims (3)
- 基材上に、
Pt又はPdを担持した酸化セリウム−ジルコニア系複合担体を含む第1の触媒層と、
Rhを担持しジルコニアを主成分とする担体を含む第2の触媒層と、
前記第1の触媒層と前記第2の触媒層との間に位置し、Ceよりも電気陰性度の低い金属の酸化物を含む拡散障壁層と、
を少なくとも有する排ガス浄化触媒。 - 前記拡散障壁層が、酸化セリウム及び酸化ランタンの少なくとも1種を含む請求項1に記載の排ガス浄化触媒。
- 前記拡散障壁層の厚さが20μm〜50μmである請求項1又は2に記載の排ガス浄化触媒。
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005179884A JP4240011B2 (ja) | 2005-06-20 | 2005-06-20 | 排ガス浄化触媒 |
RU2008100938/04A RU2372141C2 (ru) | 2005-06-20 | 2006-06-20 | Катализатор для очистки выхлопного газа |
CNA2006800220113A CN101203301A (zh) | 2005-06-20 | 2006-06-20 | 用于废气净化的催化剂 |
US11/922,456 US20090099011A1 (en) | 2005-06-20 | 2006-06-20 | Catalyst for Emission Gas Purification |
KR1020087001548A KR20080028947A (ko) | 2005-06-20 | 2006-06-20 | 배기 가스 정화 촉매 |
EP06767292A EP1907117A1 (en) | 2005-06-20 | 2006-06-20 | Catalyst for emission gas purification |
PCT/JP2006/312675 WO2006137552A1 (en) | 2005-06-20 | 2006-06-20 | Catalyst for emission gas purification |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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JP2005179884A JP4240011B2 (ja) | 2005-06-20 | 2005-06-20 | 排ガス浄化触媒 |
Publications (3)
Publication Number | Publication Date |
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JP2006346661A true JP2006346661A (ja) | 2006-12-28 |
JP2006346661A5 JP2006346661A5 (ja) | 2007-06-14 |
JP4240011B2 JP4240011B2 (ja) | 2009-03-18 |
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Application Number | Title | Priority Date | Filing Date |
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JP2005179884A Expired - Fee Related JP4240011B2 (ja) | 2005-06-20 | 2005-06-20 | 排ガス浄化触媒 |
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Country | Link |
---|---|
US (1) | US20090099011A1 (ja) |
EP (1) | EP1907117A1 (ja) |
JP (1) | JP4240011B2 (ja) |
KR (1) | KR20080028947A (ja) |
CN (1) | CN101203301A (ja) |
RU (1) | RU2372141C2 (ja) |
WO (1) | WO2006137552A1 (ja) |
Cited By (5)
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JP2010521302A (ja) * | 2007-03-19 | 2010-06-24 | ユミコア・アクチエンゲゼルシャフト・ウント・コムパニー・コマンディットゲゼルシャフト | パラジウム−ロジウム単一層触媒 |
JP2010167381A (ja) * | 2009-01-23 | 2010-08-05 | Toyota Motor Corp | 排ガス浄化用触媒 |
JP2012518531A (ja) * | 2009-02-20 | 2012-08-16 | ビー・エイ・エス・エフ、コーポレーション | パラジウム担持触媒複合体 |
JPWO2015076403A1 (ja) * | 2013-11-22 | 2017-03-16 | 株式会社キャタラー | 排気ガス浄化用触媒 |
WO2017163916A1 (ja) * | 2016-03-25 | 2017-09-28 | 株式会社キャタラー | 排ガス浄化用触媒及びその製造方法並びにそれを用いた排ガス浄化装置 |
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JP5807782B2 (ja) * | 2011-12-28 | 2015-11-10 | トヨタ自動車株式会社 | 排ガス浄化用触媒 |
KR101483651B1 (ko) * | 2012-12-13 | 2015-01-16 | 현대자동차 주식회사 | 내연 기관용 가스 정화 촉매 |
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Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6388040A (ja) * | 1986-09-30 | 1988-04-19 | Nippon Engeruharudo Kk | 車輌用排気ガス浄化用触媒及びその製造方法 |
JP2948232B2 (ja) * | 1989-04-04 | 1999-09-13 | 日産自動車株式会社 | 排気ガス浄化用触媒 |
JP3591667B2 (ja) * | 1995-06-23 | 2004-11-24 | 日野自動車株式会社 | 排ガス浄化用NOx触媒及びその製造方法 |
JP4329432B2 (ja) * | 2003-07-15 | 2009-09-09 | トヨタ自動車株式会社 | 排ガス浄化用触媒 |
US7374729B2 (en) * | 2004-03-30 | 2008-05-20 | Basf Catalysts Llc | Exhaust gas treatment catalyst |
EP1704910B1 (en) * | 2005-03-24 | 2018-09-19 | Tokyo Roki Co., Ltd. | Exhaust gas purification catalyst |
US7638459B2 (en) * | 2005-05-25 | 2009-12-29 | Uop Llc | Layered composition and processes for preparing and using the composition |
-
2005
- 2005-06-20 JP JP2005179884A patent/JP4240011B2/ja not_active Expired - Fee Related
-
2006
- 2006-06-20 WO PCT/JP2006/312675 patent/WO2006137552A1/en active Application Filing
- 2006-06-20 US US11/922,456 patent/US20090099011A1/en not_active Abandoned
- 2006-06-20 KR KR1020087001548A patent/KR20080028947A/ko not_active Application Discontinuation
- 2006-06-20 RU RU2008100938/04A patent/RU2372141C2/ru not_active IP Right Cessation
- 2006-06-20 EP EP06767292A patent/EP1907117A1/en not_active Withdrawn
- 2006-06-20 CN CNA2006800220113A patent/CN101203301A/zh active Pending
Cited By (7)
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JP2010521302A (ja) * | 2007-03-19 | 2010-06-24 | ユミコア・アクチエンゲゼルシャフト・ウント・コムパニー・コマンディットゲゼルシャフト | パラジウム−ロジウム単一層触媒 |
JP2010167381A (ja) * | 2009-01-23 | 2010-08-05 | Toyota Motor Corp | 排ガス浄化用触媒 |
JP2012518531A (ja) * | 2009-02-20 | 2012-08-16 | ビー・エイ・エス・エフ、コーポレーション | パラジウム担持触媒複合体 |
JPWO2015076403A1 (ja) * | 2013-11-22 | 2017-03-16 | 株式会社キャタラー | 排気ガス浄化用触媒 |
WO2017163916A1 (ja) * | 2016-03-25 | 2017-09-28 | 株式会社キャタラー | 排ガス浄化用触媒及びその製造方法並びにそれを用いた排ガス浄化装置 |
JPWO2017163916A1 (ja) * | 2016-03-25 | 2018-11-22 | 株式会社キャタラー | 排ガス浄化用触媒及びその製造方法並びにそれを用いた排ガス浄化装置 |
US11179701B2 (en) | 2016-03-25 | 2021-11-23 | Cataler Corporation | Exhaust gas purifying catalyst and production method therefor, and exhaust gas purification device using same |
Also Published As
Publication number | Publication date |
---|---|
WO2006137552A1 (en) | 2006-12-28 |
RU2008100938A (ru) | 2009-07-27 |
CN101203301A (zh) | 2008-06-18 |
RU2372141C2 (ru) | 2009-11-10 |
KR20080028947A (ko) | 2008-04-02 |
JP4240011B2 (ja) | 2009-03-18 |
EP1907117A1 (en) | 2008-04-09 |
US20090099011A1 (en) | 2009-04-16 |
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