CATALYST FOR EXHAUST GAS PURIFICATION
PROBLEM TO BE SOLVED: To provide a catalyst for exhaust gas purification that is excellent in heat resistance.SOLUTION: Provided is a catalyst for exhaust gas purification containing a carrier that contains a complex oxide formed from AlO, ZrO, LaOand optionally YO, and a noble metal supported on th...
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Format | Patent |
Language | English Japanese |
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18.10.2018
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Abstract | PROBLEM TO BE SOLVED: To provide a catalyst for exhaust gas purification that is excellent in heat resistance.SOLUTION: Provided is a catalyst for exhaust gas purification containing a carrier that contains a complex oxide formed from AlO, ZrO, LaOand optionally YO, and a noble metal supported on the carrier, and in which the contents, in mass%, of AlO, ZrO, LaOand YOwith respect to the whole complex oxides satisfy the following: 1.5≤ZrO≤13 0.8≤LaO≤4.2 0≤YO≤2.2 AlO: balance.SELECTED DRAWING: Figure 4
【課題】耐熱性に優れる排ガス浄化用触媒を提供する。【解決手段】Al2O3と、ZrO2、La2O3及び場合によりY2O3とから形成される複合酸化物を含有する担体、及び該担体に担持された貴金属を含有し、Al2O3、ZrO2、La2O3及びY2O3の含有量が、複合酸化物全体に対して、質量%で以下:1.5≦ZrO2≦130.8≦La2O3≦4.20≦Y2O3≦2.2Al2O3:残部を満たす排ガス浄化用触媒。【選択図】図4 |
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AbstractList | PROBLEM TO BE SOLVED: To provide a catalyst for exhaust gas purification that is excellent in heat resistance.SOLUTION: Provided is a catalyst for exhaust gas purification containing a carrier that contains a complex oxide formed from AlO, ZrO, LaOand optionally YO, and a noble metal supported on the carrier, and in which the contents, in mass%, of AlO, ZrO, LaOand YOwith respect to the whole complex oxides satisfy the following: 1.5≤ZrO≤13 0.8≤LaO≤4.2 0≤YO≤2.2 AlO: balance.SELECTED DRAWING: Figure 4
【課題】耐熱性に優れる排ガス浄化用触媒を提供する。【解決手段】Al2O3と、ZrO2、La2O3及び場合によりY2O3とから形成される複合酸化物を含有する担体、及び該担体に担持された貴金属を含有し、Al2O3、ZrO2、La2O3及びY2O3の含有量が、複合酸化物全体に対して、質量%で以下:1.5≦ZrO2≦130.8≦La2O3≦4.20≦Y2O3≦2.2Al2O3:残部を満たす排ガス浄化用触媒。【選択図】図4 |
Author | IMOTO RUI |
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DocumentTitleAlternate | 排ガス浄化用触媒 |
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RelatedCompanies | TOYOTA MOTOR CORP |
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Snippet | PROBLEM TO BE SOLVED: To provide a catalyst for exhaust gas purification that is excellent in heat resistance.SOLUTION: Provided is a catalyst for exhaust gas... |
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SubjectTerms | BLASTING CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY ENGINE PLANTS IN GENERAL GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNALCOMBUSTION ENGINES GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES ORENGINES IN GENERAL HEATING LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION STEAM ENGINES THEIR RELEVANT APPARATUS TRANSPORTING WEAPONS |
Title | CATALYST FOR EXHAUST GAS PURIFICATION |
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