JP3855994B2 - 触媒及びその製造方法 - Google Patents
触媒及びその製造方法 Download PDFInfo
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- JP3855994B2 JP3855994B2 JP2003431000A JP2003431000A JP3855994B2 JP 3855994 B2 JP3855994 B2 JP 3855994B2 JP 2003431000 A JP2003431000 A JP 2003431000A JP 2003431000 A JP2003431000 A JP 2003431000A JP 3855994 B2 JP3855994 B2 JP 3855994B2
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- Japan
- Prior art keywords
- catalyst
- reverse micelle
- solution
- prepared
- exhaust gas
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 239000003054 catalyst Substances 0.000 title claims description 84
- 238000004519 manufacturing process Methods 0.000 title claims description 39
- 239000000243 solution Substances 0.000 claims description 95
- 239000000693 micelle Substances 0.000 claims description 90
- 229910000510 noble metal Inorganic materials 0.000 claims description 45
- 239000012018 catalyst precursor Substances 0.000 claims description 44
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Substances [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 43
- 239000000463 material Substances 0.000 claims description 40
- 238000010304 firing Methods 0.000 claims description 38
- 239000007921 spray Substances 0.000 claims description 32
- 239000004094 surface-active agent Substances 0.000 claims description 30
- 238000000034 method Methods 0.000 claims description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 29
- 239000000843 powder Substances 0.000 claims description 28
- 239000007789 gas Substances 0.000 claims description 24
- 230000003197 catalytic effect Effects 0.000 claims description 20
- 239000007864 aqueous solution Substances 0.000 claims description 17
- 229910052697 platinum Inorganic materials 0.000 claims description 17
- 239000012298 atmosphere Substances 0.000 claims description 16
- 229910052723 transition metal Inorganic materials 0.000 claims description 12
- 229910052751 metal Inorganic materials 0.000 claims description 11
- 239000010419 fine particle Substances 0.000 claims description 10
- 238000002360 preparation method Methods 0.000 claims description 10
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 10
- 239000003960 organic solvent Substances 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 claims description 6
- 239000011261 inert gas Substances 0.000 claims description 6
- 229910052684 Cerium Inorganic materials 0.000 claims description 5
- 229910052746 lanthanum Inorganic materials 0.000 claims description 5
- 239000010970 precious metal Substances 0.000 claims description 5
- 239000002904 solvent Substances 0.000 claims description 5
- 229910052742 iron Inorganic materials 0.000 claims description 4
- 229910052763 palladium Inorganic materials 0.000 claims description 4
- 238000000746 purification Methods 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 229910052748 manganese Inorganic materials 0.000 claims description 3
- 229910052759 nickel Inorganic materials 0.000 claims description 3
- 229910052703 rhodium Inorganic materials 0.000 claims description 3
- 229910052725 zinc Inorganic materials 0.000 claims description 3
- 229910052737 gold Inorganic materials 0.000 claims description 2
- 229910052741 iridium Inorganic materials 0.000 claims description 2
- 239000002243 precursor Substances 0.000 claims description 2
- 229910052707 ruthenium Inorganic materials 0.000 claims description 2
- 229910052709 silver Inorganic materials 0.000 claims description 2
- 239000002585 base Substances 0.000 description 25
- 230000000052 comparative effect Effects 0.000 description 24
- SMZOGRDCAXLAAR-UHFFFAOYSA-N aluminium isopropoxide Chemical compound [Al+3].CC(C)[O-].CC(C)[O-].CC(C)[O-] SMZOGRDCAXLAAR-UHFFFAOYSA-N 0.000 description 20
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 description 19
- 239000002245 particle Substances 0.000 description 17
- -1 polyoxyethylene nonylphenyl ether Polymers 0.000 description 16
- 239000004698 Polyethylene Substances 0.000 description 12
- 229920000573 polyethylene Polymers 0.000 description 12
- OAKJQQAXSVQMHS-UHFFFAOYSA-N Hydrazine Chemical compound NN OAKJQQAXSVQMHS-UHFFFAOYSA-N 0.000 description 10
- 239000000839 emulsion Substances 0.000 description 10
- 239000002184 metal Substances 0.000 description 10
- 239000011259 mixed solution Substances 0.000 description 10
- 238000002156 mixing Methods 0.000 description 10
- 239000000203 mixture Substances 0.000 description 10
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 9
- 229910017052 cobalt Inorganic materials 0.000 description 9
- 239000010941 cobalt Substances 0.000 description 9
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 9
- 238000003756 stirring Methods 0.000 description 9
- 239000000758 substrate Substances 0.000 description 9
- 239000012279 sodium borohydride Substances 0.000 description 8
- 229910000033 sodium borohydride Inorganic materials 0.000 description 8
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 7
- 239000002923 metal particle Substances 0.000 description 7
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 6
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
- 239000003638 chemical reducing agent Substances 0.000 description 6
- 239000012153 distilled water Substances 0.000 description 6
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Natural products N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 5
- 239000006185 dispersion Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- UFMZWBIQTDUYBN-UHFFFAOYSA-N cobalt dinitrate Chemical compound [Co+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O UFMZWBIQTDUYBN-UHFFFAOYSA-N 0.000 description 4
- 229910001981 cobalt nitrate Inorganic materials 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 229910044991 metal oxide Inorganic materials 0.000 description 4
- 150000004706 metal oxides Chemical class 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical compound CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 description 3
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 3
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 description 3
- 150000002739 metals Chemical class 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000012071 phase Substances 0.000 description 3
- 239000002244 precipitate Substances 0.000 description 3
- 239000010948 rhodium Substances 0.000 description 3
- 238000005245 sintering Methods 0.000 description 3
- KBPLFHHGFOOTCA-UHFFFAOYSA-N 1-Octanol Chemical compound CCCCCCCCO KBPLFHHGFOOTCA-UHFFFAOYSA-N 0.000 description 2
- BBMCTIGTTCKYKF-UHFFFAOYSA-N 1-heptanol Chemical compound CCCCCCCO BBMCTIGTTCKYKF-UHFFFAOYSA-N 0.000 description 2
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 229910002091 carbon monoxide Inorganic materials 0.000 description 2
- 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 2
- 239000002131 composite material Substances 0.000 description 2
- DMEGYFMYUHOHGS-UHFFFAOYSA-N cycloheptane Chemical compound C1CCCCCC1 DMEGYFMYUHOHGS-UHFFFAOYSA-N 0.000 description 2
- DIOQZVSQGTUSAI-UHFFFAOYSA-N decane Chemical compound CCCCCCCCCC DIOQZVSQGTUSAI-UHFFFAOYSA-N 0.000 description 2
- LQZZUXJYWNFBMV-UHFFFAOYSA-N dodecan-1-ol Chemical compound CCCCCCCCCCCCO LQZZUXJYWNFBMV-UHFFFAOYSA-N 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- BXWNKGSJHAJOGX-UHFFFAOYSA-N hexadecan-1-ol Chemical compound CCCCCCCCCCCCCCCCO BXWNKGSJHAJOGX-UHFFFAOYSA-N 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 2
- UAEPNZWRGJTJPN-UHFFFAOYSA-N methylcyclohexane Chemical compound CC1CCCCC1 UAEPNZWRGJTJPN-UHFFFAOYSA-N 0.000 description 2
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- GPNDARIEYHPYAY-UHFFFAOYSA-N palladium(ii) nitrate Chemical compound [Pd+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O GPNDARIEYHPYAY-UHFFFAOYSA-N 0.000 description 2
- OGHBATFHNDZKSO-UHFFFAOYSA-N propan-2-olate Chemical compound CC(C)[O-] OGHBATFHNDZKSO-UHFFFAOYSA-N 0.000 description 2
- 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 2
- 239000007787 solid Substances 0.000 description 2
- WGTYBPLFGIVFAS-UHFFFAOYSA-M tetramethylammonium hydroxide Chemical compound [OH-].C[N+](C)(C)C WGTYBPLFGIVFAS-UHFFFAOYSA-M 0.000 description 2
- 150000003623 transition metal compounds Chemical class 0.000 description 2
- SZEMGTQCPRNXEG-UHFFFAOYSA-M trimethyl(octadecyl)azanium;bromide Chemical compound [Br-].CCCCCCCCCCCCCCCCCC[N+](C)(C)C SZEMGTQCPRNXEG-UHFFFAOYSA-M 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- GHPYJLCQYMAXGG-WCCKRBBISA-N (2R)-2-amino-3-(2-boronoethylsulfanyl)propanoic acid hydrochloride Chemical compound Cl.N[C@@H](CSCCB(O)O)C(O)=O GHPYJLCQYMAXGG-WCCKRBBISA-N 0.000 description 1
- KPZGRMZPZLOPBS-UHFFFAOYSA-N 1,3-dichloro-2,2-bis(chloromethyl)propane Chemical compound ClCC(CCl)(CCl)CCl KPZGRMZPZLOPBS-UHFFFAOYSA-N 0.000 description 1
- ZXVONLUNISGICL-UHFFFAOYSA-N 4,6-dinitro-o-cresol Chemical group CC1=CC([N+]([O-])=O)=CC([N+]([O-])=O)=C1O ZXVONLUNISGICL-UHFFFAOYSA-N 0.000 description 1
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 description 1
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- LZZYPRNAOMGNLH-UHFFFAOYSA-M Cetrimonium bromide Chemical compound [Br-].CCCCCCCCCCCCCCCC[N+](C)(C)C LZZYPRNAOMGNLH-UHFFFAOYSA-M 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- NHTMVDHEPJAVLT-UHFFFAOYSA-N Isooctane Chemical compound CC(C)CC(C)(C)C NHTMVDHEPJAVLT-UHFFFAOYSA-N 0.000 description 1
- 239000002211 L-ascorbic acid Substances 0.000 description 1
- 235000000069 L-ascorbic acid Nutrition 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- 229910018967 Pt—Rh Inorganic materials 0.000 description 1
- VBIIFPGSPJYLRR-UHFFFAOYSA-M Stearyltrimethylammonium chloride Chemical compound [Cl-].CCCCCCCCCCCCCCCCCC[N+](C)(C)C VBIIFPGSPJYLRR-UHFFFAOYSA-M 0.000 description 1
- 229910010413 TiO 2 Inorganic materials 0.000 description 1
- 229930003270 Vitamin B Natural products 0.000 description 1
- XHCLAFWTIXFWPH-UHFFFAOYSA-N [O-2].[O-2].[O-2].[O-2].[O-2].[V+5].[V+5] Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[V+5].[V+5] XHCLAFWTIXFWPH-UHFFFAOYSA-N 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- SOIFLUNRINLCBN-UHFFFAOYSA-N ammonium thiocyanate Chemical compound [NH4+].[S-]C#N SOIFLUNRINLCBN-UHFFFAOYSA-N 0.000 description 1
- 239000008346 aqueous phase Substances 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 229960005070 ascorbic acid Drugs 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- HDMXIELEUKTYFR-UHFFFAOYSA-N bis(2-ethylhexyl) butanedioate;sodium Chemical compound [Na].CCCCC(CC)COC(=O)CCC(=O)OCC(CC)CCCC HDMXIELEUKTYFR-UHFFFAOYSA-N 0.000 description 1
- 239000012267 brine Substances 0.000 description 1
- CWQUQZODOUNODL-UHFFFAOYSA-L calcium;hexadecyl sulfate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCOS([O-])(=O)=O.CCCCCCCCCCCCCCCCOS([O-])(=O)=O CWQUQZODOUNODL-UHFFFAOYSA-L 0.000 description 1
- 229960000541 cetyl alcohol Drugs 0.000 description 1
- WOWHHFRSBJGXCM-UHFFFAOYSA-M cetyltrimethylammonium chloride Chemical compound [Cl-].CCCCCCCCCCCCCCCC[N+](C)(C)C WOWHHFRSBJGXCM-UHFFFAOYSA-M 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 235000015165 citric acid Nutrition 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000005574 cross-species transmission Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- XRWMGCFJVKDVMD-UHFFFAOYSA-M didodecyl(dimethyl)azanium;bromide Chemical compound [Br-].CCCCCCCCCCCC[N+](C)(C)CCCCCCCCCCCC XRWMGCFJVKDVMD-UHFFFAOYSA-M 0.000 description 1
- WLCFKPHMRNPAFZ-UHFFFAOYSA-M didodecyl(dimethyl)azanium;chloride Chemical compound [Cl-].CCCCCCCCCCCC[N+](C)(C)CCCCCCCCCCCC WLCFKPHMRNPAFZ-UHFFFAOYSA-M 0.000 description 1
- IRMGVPILCPGYNQ-UHFFFAOYSA-M dimethyl-di(tetradecyl)azanium;bromide Chemical compound [Br-].CCCCCCCCCCCCCC[N+](C)(C)CCCCCCCCCCCCCC IRMGVPILCPGYNQ-UHFFFAOYSA-M 0.000 description 1
- RSHHCURRBLAGFA-UHFFFAOYSA-M dimethyl-di(tetradecyl)azanium;chloride Chemical compound [Cl-].CCCCCCCCCCCCCC[N+](C)(C)CCCCCCCCCCCCCC RSHHCURRBLAGFA-UHFFFAOYSA-M 0.000 description 1
- JVSWJIKNEAIKJW-UHFFFAOYSA-N dimethyl-hexane Natural products CCCCCC(C)C JVSWJIKNEAIKJW-UHFFFAOYSA-N 0.000 description 1
- DDXLVDQZPFLQMZ-UHFFFAOYSA-M dodecyl(trimethyl)azanium;chloride Chemical compound [Cl-].CCCCCCCCCCCC[N+](C)(C)C DDXLVDQZPFLQMZ-UHFFFAOYSA-M 0.000 description 1
- JRBPAEWTRLWTQC-UHFFFAOYSA-N dodecylamine Chemical compound CCCCCCCCCCCCN JRBPAEWTRLWTQC-UHFFFAOYSA-N 0.000 description 1
- QVAZSFSQBKLKMP-UHFFFAOYSA-N dodecylazanium;propanoate Chemical compound CCC([O-])=O.CCCCCCCCCCCC[NH3+] QVAZSFSQBKLKMP-UHFFFAOYSA-N 0.000 description 1
- XJWSAJYUBXQQDR-UHFFFAOYSA-M dodecyltrimethylammonium bromide Chemical compound [Br-].CCCCCCCCCCCC[N+](C)(C)C XJWSAJYUBXQQDR-UHFFFAOYSA-M 0.000 description 1
- 238000004945 emulsification Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 235000019253 formic acid Nutrition 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- MVFCKEFYUDZOCX-UHFFFAOYSA-N iron(2+);dinitrate Chemical compound [Fe+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O MVFCKEFYUDZOCX-UHFFFAOYSA-N 0.000 description 1
- 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 1
- 238000011068 loading method Methods 0.000 description 1
- BJZBHTNKDCBDNQ-UHFFFAOYSA-L magnesium;dodecanoate Chemical compound [Mg+2].CCCCCCCCCCCC([O-])=O.CCCCCCCCCCCC([O-])=O BJZBHTNKDCBDNQ-UHFFFAOYSA-L 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910000000 metal hydroxide Inorganic materials 0.000 description 1
- 150000004692 metal hydroxides Chemical class 0.000 description 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 1
- GYNNXHKOJHMOHS-UHFFFAOYSA-N methyl-cycloheptane Natural products CC1CCCCCC1 GYNNXHKOJHMOHS-UHFFFAOYSA-N 0.000 description 1
- 239000004530 micro-emulsion Substances 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- QGLKJKCYBOYXKC-UHFFFAOYSA-N nonaoxidotritungsten Chemical compound O=[W]1(=O)O[W](=O)(=O)O[W](=O)(=O)O1 QGLKJKCYBOYXKC-UHFFFAOYSA-N 0.000 description 1
- 229940049964 oleate Drugs 0.000 description 1
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- VNVJGCRCHNRLGG-UHFFFAOYSA-N phenyl octadecanoate;sodium Chemical compound [Na].CCCCCCCCCCCCCCCCCC(=O)OC1=CC=CC=C1 VNVJGCRCHNRLGG-UHFFFAOYSA-N 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- SONJTKJMTWTJCT-UHFFFAOYSA-K rhodium(iii) chloride Chemical compound [Cl-].[Cl-].[Cl-].[Rh+3] SONJTKJMTWTJCT-UHFFFAOYSA-K 0.000 description 1
- GTCKPGDAPXUISX-UHFFFAOYSA-N ruthenium(3+);trinitrate Chemical compound [Ru+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O GTCKPGDAPXUISX-UHFFFAOYSA-N 0.000 description 1
- YBCAZPLXEGKKFM-UHFFFAOYSA-K ruthenium(iii) chloride Chemical compound [Cl-].[Cl-].[Cl-].[Ru+3] YBCAZPLXEGKKFM-UHFFFAOYSA-K 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000010944 silver (metal) Substances 0.000 description 1
- 239000001509 sodium citrate Substances 0.000 description 1
- NLJMYIDDQXHKNR-UHFFFAOYSA-K sodium citrate Chemical compound O.O.[Na+].[Na+].[Na+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O NLJMYIDDQXHKNR-UHFFFAOYSA-K 0.000 description 1
- 235000011083 sodium citrates Nutrition 0.000 description 1
- AKHNMLFCWUSKQB-UHFFFAOYSA-L sodium thiosulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=S AKHNMLFCWUSKQB-UHFFFAOYSA-L 0.000 description 1
- 235000019345 sodium thiosulphate Nutrition 0.000 description 1
- DHQIJSYTNIUZRY-UHFFFAOYSA-M sodium;2,3-di(nonyl)naphthalene-1-sulfonate Chemical compound [Na+].C1=CC=C2C(S([O-])(=O)=O)=C(CCCCCCCCC)C(CCCCCCCCC)=CC2=C1 DHQIJSYTNIUZRY-UHFFFAOYSA-M 0.000 description 1
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000000967 suction filtration Methods 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 150000003624 transition metals Chemical class 0.000 description 1
- WBKJPJYWZAGQKL-UHFFFAOYSA-M tributyl(octadecyl)azanium;formate Chemical compound [O-]C=O.CCCCCCCCCCCCCCCCCC[N+](CCCC)(CCCC)CCCC WBKJPJYWZAGQKL-UHFFFAOYSA-M 0.000 description 1
- DQYBHCRUGXGVNS-UHFFFAOYSA-M tributyl(pentyl)azanium;iodide Chemical compound [I-].CCCCC[N+](CCCC)(CCCC)CCCC DQYBHCRUGXGVNS-UHFFFAOYSA-M 0.000 description 1
- PDSVZUAJOIQXRK-UHFFFAOYSA-N trimethyl(octadecyl)azanium Chemical compound CCCCCCCCCCCCCCCCCC[N+](C)(C)C PDSVZUAJOIQXRK-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 229910001930 tungsten oxide Inorganic materials 0.000 description 1
- 229910001935 vanadium oxide Inorganic materials 0.000 description 1
- 239000011720 vitamin B Substances 0.000 description 1
- 235000019156 vitamin B Nutrition 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
- 229940105125 zinc myristate Drugs 0.000 description 1
- NVKSAUAQUPYOPO-UHFFFAOYSA-L zinc;decanoate Chemical compound [Zn+2].CCCCCCCCCC([O-])=O.CCCCCCCCCC([O-])=O NVKSAUAQUPYOPO-UHFFFAOYSA-L 0.000 description 1
- GBFLQPIIIRJQLU-UHFFFAOYSA-L zinc;tetradecanoate Chemical compound [Zn+2].CCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCC([O-])=O GBFLQPIIIRJQLU-UHFFFAOYSA-L 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
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Description
実施例1は、アルミニウムイソプロポキシド(Al-isoP)包接を使用して触媒粉末を作製した。
実施例2は、Al2O3粒子に含浸する方法を用いて触媒粉末を作製した。
実施例3は、アルミニウムイソプロポキシド(Al-isoP)包接を使用し、遷移金属元素Coを混合して触媒粉末を作製した。
実施例4は、Al2O3粒子に含浸する方法を用いて触媒粉末を作製した。
実施例5は、アルミニウムイソプロポキシド(Al-isoP)包接を使用して、実施例3と同様に触媒粉末を作製した。実施例3に示す逆ミセル溶液Bにコバルトの代りに鉄の重量比が最終的に基材の5wt%となるように硝酸鉄を加えた以外は、実施例3と同様とした。
実施例6は、アルミニウムイソプロポキシド(Al-isoP)包接を使用して、実施例3と同様に触媒粉末を作製した。実施例3に示す逆ミセル溶液Aにジニトロジアミン白金の代りに硝酸ロジウムを加えた以外は、実施例3と同様とした。
実施例7は、アルミニウムイソプロポキシド(Al-isoP)包接を使用して、実施例3と同様に触媒粉末を作製した。実施例3に示す逆ミセル溶液Aにジニトロジアミン白金の代りに硝酸パラジウムを加えた以外は実施例3と同様とした。
実施例8は、アルミニウムイソプロポキシド(Al-isoP)包接を使用して、触媒粉末を作製した。
実施例9は、Al2O3粒子に含浸する方法を用いて触媒粉末を作製した。
比較例1は、実施例1に示したアルミニウムイソプロポキシド(Al-isoP)包接を使用して、触媒前駆体を調製した。なお、調製した逆ミセル溶液Aに界面活性剤と内包する水のモル比がRW=5となるように水を添加した以外は実施例1と同様とした。
比較例2は、比較例1と同様の方法を用いて触媒粉末を作製した。比較例1
と異なる点は、調製した逆ミセル溶液Aに界面活性剤と内包する水のモル比がRW=10になるように水を混合したことにある。
比較例3は、比較例1と同様の方法を用いて触媒粉末を作製した。比較例1
と異なる点は、調製した逆ミセル溶液Aに、界面活性剤と内包する水のモル比がRW=20になるように水を混合したことにある。
比較例4は、実施例2に示したAl2O3に含浸する方法を用いて触媒前駆体を調製した。調製した触媒前駆体を含む分散溶液を用いて、比較例1と同様の処理をして触媒粉末とした。
比較例5は、実施例3に示したアルミニウムイソプロポキシド(Al-isoP)包接を使用し、触媒前駆体を調製した。調製した触媒前駆体を含む分散溶液を用いて、比較例1と同様の処理をして触媒粉末とした。
比較例6は、実施例4に示したAl2O3に含浸する方法を用いて触媒前駆体を調製した。調製した触媒前駆体を含む分散溶液を用いて、比較例1と同様の処理をして触媒粉末とした。
比較例7は、実施例8に示したアルミニウムイソプロポキシド(Al-isoP)包接を使用して、触媒前駆体を調製した。調製した触媒前駆体を含む分散溶液を用いて、比較例1と同様の処理をして触媒粉末とした。
2…担持工程,
3…噴霧焼成工程,
Claims (10)
- 触媒活性成分を含む水溶液を内部に含有した逆ミセルを有機溶媒中に調製する逆ミセル調製工程と、
次いで前記逆ミセル内部の触媒活性成分を不溶化し、微粒子化する工程と、
次いで前記微粒子化した触媒活性成分を基材に担持して触媒前駆体とする担持工程と、
次いで前記触媒前駆体を不活性ガス雰囲気中で噴霧焼成する第1の噴霧焼成工程と、
次いで前記第1の噴霧焼成工程から得られた粉末を空気雰囲気中で焼成する第2の噴霧焼成工程と、
からなることを特徴とする排ガス浄化用触媒の製造方法。 - 前記逆ミセル調製工程は、逆ミセルを形成する界面活性剤に対する前記ミセルに内包される水のモル比(RW)を20以下とすることを特徴とする請求項1又は2記載の排ガス浄化用触媒の製造方法。
- 前記触媒活性成分として、貴金属、遷移金属元素又は希土類元素の少なくとも一つを含むことを特徴とする請求項1又は2記載の排ガス浄化用触媒の製造方法。
- 前記担持工程は、溶媒中に酸化物の粉末を分散させた溶液を調製し、調製した溶液と前記逆ミセル溶液とを混合して、基材に触媒活性成分を担持して触媒前駆体とすることを特徴とする請求項1記載の排ガス浄化用触媒の製造方法。
- 前記担持工程は、基材を形成する酸化物の前駆体である水酸化物を調製し、調製した前記水酸化物により前記逆ミセル溶液中に含まれる前記触媒活性成分を包接して触媒前駆体とすることを特徴とする請求項1項記載の排ガス浄化用触媒の製造方法。
- 前記貴金属元素として、Ru、Rh、Pd、Ag、Ir、Pt及びAuの中から選択される少なくとも一種又は二種以上の元素を用いることを特徴とする請求項1記載の排ガス浄化用触媒の製造方法。
- 前記遷移金属元素として、Mn、Fe、Co、Ni、Cu及びZnの中から選択される少なくとも一種又は二種以上の元素を用いることを特徴とする排ガス浄化用請求項1記載の触媒の製造方法。
- 前記希土類元素として、LaまたはCeの少なくともいずれかを用いることを特徴とする請求項1記載の排ガス浄化用触媒の製造方法。
- 請求項1から9までのいずれか1項に記載の触媒の製造方法から得られた排ガス浄化用触媒。
- 同一の多孔質酸化物から形成される基材上に、逆ミセル法を用いて調整した貴金属元素、遷移金属元素及び希土類元素の中から選択される少なくとも一種又は二種以上を担持した触媒前駆体を用いて、
前記触媒前駆体を不活性ガス雰囲気中で噴霧焼成する第1の噴霧焼成工程と、
次いで前記第1の噴霧焼成工程から得られた粉末を空気雰囲気中で焼成する第2の噴霧焼成工程を経て、得たことを特徴とする排ガス浄化用触媒。
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JP3749391B2 (ja) * | 1998-03-04 | 2006-02-22 | トヨタ自動車株式会社 | 排ガス浄化用触媒及びその製造方法 |
JP3722990B2 (ja) | 1998-08-04 | 2005-11-30 | トヨタ自動車株式会社 | 酸素吸蔵能のある触媒の製造方法 |
JP3917337B2 (ja) | 1999-09-28 | 2007-05-23 | ヤマハ発動機株式会社 | シリーズハイブリッド式電動車両 |
JP2002024847A (ja) | 2000-07-11 | 2002-01-25 | Dainippon Printing Co Ltd | 画像生成装置、画像生成方法及び記録媒体 |
JP2002066335A (ja) * | 2000-08-24 | 2002-03-05 | Toyota Central Res & Dev Lab Inc | 貴金属分散アルミナ粒子とその製造方法及び排ガス浄化用触媒 |
JP2003288905A (ja) | 2002-03-27 | 2003-10-10 | Asahi Kasei Corp | 電極触媒の製造方法 |
JP2003290667A (ja) | 2002-04-02 | 2003-10-14 | Toyota Motor Corp | 触媒の製造方法 |
JP4590937B2 (ja) * | 2003-07-02 | 2010-12-01 | 日産自動車株式会社 | 電極触媒およびその製造方法 |
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EP1701789A1 (en) | 2006-09-20 |
US20070155625A1 (en) | 2007-07-05 |
US7737076B2 (en) | 2010-06-15 |
WO2005063384A1 (en) | 2005-07-14 |
JP2005185968A (ja) | 2005-07-14 |
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