JP5506478B2 - 排ガス浄化用触媒 - Google Patents
排ガス浄化用触媒 Download PDFInfo
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- JP5506478B2 JP5506478B2 JP2010058809A JP2010058809A JP5506478B2 JP 5506478 B2 JP5506478 B2 JP 5506478B2 JP 2010058809 A JP2010058809 A JP 2010058809A JP 2010058809 A JP2010058809 A JP 2010058809A JP 5506478 B2 JP5506478 B2 JP 5506478B2
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- supported
- catalyst
- metal oxide
- ymno
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- 239000003054 catalyst Substances 0.000 title claims description 92
- 238000000746 purification Methods 0.000 title description 49
- 229910009580 YMnO Inorganic materials 0.000 claims description 43
- 229910044991 metal oxide Inorganic materials 0.000 claims description 43
- 150000004706 metal oxides Chemical class 0.000 claims description 43
- 239000002131 composite material Substances 0.000 claims description 41
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical group [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 37
- 229910052751 metal Inorganic materials 0.000 claims description 22
- 239000002184 metal Substances 0.000 claims description 22
- 238000002485 combustion reaction Methods 0.000 claims description 10
- 239000013078 crystal Substances 0.000 claims description 10
- 229910052748 manganese Inorganic materials 0.000 claims description 5
- 229910052727 yttrium Inorganic materials 0.000 claims description 4
- 229910052763 palladium Inorganic materials 0.000 claims description 3
- 229910052697 platinum Inorganic materials 0.000 claims description 3
- 229910052703 rhodium Inorganic materials 0.000 claims description 3
- 229910003455 mixed metal oxide Inorganic materials 0.000 claims description 2
- 230000001590 oxidative effect Effects 0.000 claims description 2
- 239000007789 gas Substances 0.000 description 39
- 230000000052 comparative effect Effects 0.000 description 21
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 20
- KDLHZDBZIXYQEI-UHFFFAOYSA-N palladium Substances [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 20
- 229910002091 carbon monoxide Inorganic materials 0.000 description 17
- 239000010936 titanium Substances 0.000 description 14
- 239000007864 aqueous solution Substances 0.000 description 12
- 239000010453 quartz Substances 0.000 description 12
- 239000010948 rhodium Substances 0.000 description 12
- 239000000843 powder Substances 0.000 description 9
- 238000010304 firing Methods 0.000 description 8
- CLSUSRZJUQMOHH-UHFFFAOYSA-L platinum dichloride Chemical compound Cl[Pt]Cl CLSUSRZJUQMOHH-UHFFFAOYSA-L 0.000 description 8
- 230000015572 biosynthetic process Effects 0.000 description 7
- 239000011491 glass wool Substances 0.000 description 7
- GPNDARIEYHPYAY-UHFFFAOYSA-N palladium(ii) nitrate Chemical compound [Pd+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O GPNDARIEYHPYAY-UHFFFAOYSA-N 0.000 description 7
- 238000003786 synthesis reaction Methods 0.000 description 7
- NGDQQLAVJWUYSF-UHFFFAOYSA-N 4-methyl-2-phenyl-1,3-thiazole-5-sulfonyl chloride Chemical compound S1C(S(Cl)(=O)=O)=C(C)N=C1C1=CC=CC=C1 NGDQQLAVJWUYSF-UHFFFAOYSA-N 0.000 description 6
- 230000003197 catalytic effect Effects 0.000 description 6
- BJEPYKJPYRNKOW-REOHCLBHSA-N (S)-malic acid Chemical compound OC(=O)[C@@H](O)CC(O)=O BJEPYKJPYRNKOW-REOHCLBHSA-N 0.000 description 5
- BJEPYKJPYRNKOW-UHFFFAOYSA-N alpha-hydroxysuccinic acid Natural products OC(=O)C(O)CC(O)=O BJEPYKJPYRNKOW-UHFFFAOYSA-N 0.000 description 5
- 150000001875 compounds Chemical class 0.000 description 5
- 235000011090 malic acid Nutrition 0.000 description 5
- 239000001630 malic acid Substances 0.000 description 5
- MIVBAHRSNUNMPP-UHFFFAOYSA-N manganese(2+);dinitrate Chemical compound [Mn+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O MIVBAHRSNUNMPP-UHFFFAOYSA-N 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- 238000002441 X-ray diffraction Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000011572 manganese Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 150000007524 organic acids Chemical class 0.000 description 4
- 150000003746 yttrium Chemical class 0.000 description 4
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 3
- 238000011068 loading method Methods 0.000 description 3
- 150000002696 manganese Chemical class 0.000 description 3
- VXNYVYJABGOSBX-UHFFFAOYSA-N rhodium(3+);trinitrate Chemical compound [Rh+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O VXNYVYJABGOSBX-UHFFFAOYSA-N 0.000 description 3
- 239000012266 salt solution Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 150000003608 titanium Chemical class 0.000 description 2
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 2
- 229910052684 Cerium Inorganic materials 0.000 description 1
- 238000005033 Fourier transform infrared spectroscopy Methods 0.000 description 1
- 229910052688 Gadolinium Inorganic materials 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- 229910052779 Neodymium Inorganic materials 0.000 description 1
- 229910052777 Praseodymium Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052746 lanthanum Inorganic materials 0.000 description 1
- GJKFIJKSBFYMQK-UHFFFAOYSA-N lanthanum(3+);trinitrate;hexahydrate Chemical compound O.O.O.O.O.O.[La+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O GJKFIJKSBFYMQK-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000033116 oxidation-reduction process Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- -1 platinum group metals Chemical class 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 229910052707 ruthenium Inorganic materials 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
Images
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- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Catalysts (AREA)
- Exhaust Gas After Treatment (AREA)
Description
〔比較例1〕
本比較例では、硝酸イットリウムに代えて硝酸ランタン六水和物を用いた以外は、実施例1と全く同一にして、LaMnO3の化学式で表される複合金属酸化物の粉末を得た。
〔比較例2〕
本比較例では、塩化白金水溶液に代えて硝酸パラジウム(II)水溶液を用いた以外は、比較例1と同様にして、Pdをそれぞれ、0.1質量%、0.5質量%、1.0質量%、2.0質量%担持してなるPd担持LaMnO3触媒を得た。
〔比較例3〕
本比較例では、塩化白金水溶液に代えて硝酸ロジウム(III)水溶液を用いた以外は、比較例1と同様にして、Rhをそれぞれ、0.1質量%、0.5質量%、1.0質量%、2.0質量%担持してなるRh担持LaMnO3触媒を得た。
Claims (2)
- 内燃機関の排ガスに含まれるHC、CO、H 2 を酸化する一方、NOxを還元して浄化する触媒において、
YとMnとを含み、かつ、斜方晶と六方晶との混晶を含む複合金属酸化物に白金族金属を担持してなり、
前記白金族金属はPt、Pd、Rhからなる群から選択される金属であり、
前記白金族金属の担持量が前記複合金属酸化物に対して0.1〜1.0質量%の範囲にあることを特徴とする触媒。 - 請求項1に記載の触媒において、前記複合金属酸化物は、式YMnO3又は一般式YMn1−xTixO3(式中、0.01≦x≦0.50)で表されることを特徴とする触媒。
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JP2010058809A JP5506478B2 (ja) | 2010-03-16 | 2010-03-16 | 排ガス浄化用触媒 |
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JP2010058809A JP5506478B2 (ja) | 2010-03-16 | 2010-03-16 | 排ガス浄化用触媒 |
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JP2011189306A JP2011189306A (ja) | 2011-09-29 |
JP5506478B2 true JP5506478B2 (ja) | 2014-05-28 |
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Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5805603B2 (ja) * | 2012-04-10 | 2015-11-04 | 三井金属鉱業株式会社 | 排気ガス浄化用触媒 |
CN102910913B (zh) * | 2012-09-26 | 2014-06-04 | 河南科技大学 | YMnO3电介质陶瓷的制备工艺及YMnO3电介质陶瓷电容器 |
JP5220232B1 (ja) * | 2012-12-26 | 2013-06-26 | 本田技研工業株式会社 | 金属酸素電池及びそれに用いる酸素貯蔵材料の製造方法 |
WO2019194187A1 (ja) * | 2018-04-03 | 2019-10-10 | 三井金属鉱業株式会社 | 排ガス浄化触媒用材料及び排ガス浄化用触媒組成物並びに排ガス浄化触媒 |
JP2023512983A (ja) * | 2020-01-27 | 2023-03-30 | ビーエーエスエフ コーポレーション | イットリウムドープ触媒担体 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
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JP3855924B2 (ja) * | 1994-10-04 | 2006-12-13 | 日産自動車株式会社 | Aサイト欠損型ペロブスカイト複合酸化物を用いた排気ガス浄化用三元触媒 |
JP2000256017A (ja) * | 1999-03-05 | 2000-09-19 | Nissan Motor Co Ltd | 層状ペロブスカイト化合物、窒素酸化物浄化触媒材料及びこれを用いた排ガス浄化用触媒 |
JP4611927B2 (ja) * | 2006-04-05 | 2011-01-12 | 本田技研工業株式会社 | 排ガス浄化用酸化触媒 |
JP2007307446A (ja) * | 2006-05-16 | 2007-11-29 | Honda Motor Co Ltd | 排ガス浄化酸化触媒 |
JP4753209B2 (ja) * | 2007-12-06 | 2011-08-24 | 本田技研工業株式会社 | 排ガス浄化用酸化触媒装置 |
JP5041367B2 (ja) * | 2008-01-31 | 2012-10-03 | 本田技研工業株式会社 | 排ガス浄化用酸化触媒装置の製造方法 |
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2010
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