汽车尾气净化用贵金属催化材料研究进展

20059Sep.2005263PreciousMetalsVol.26,No.3200406108632002AA3210602004B0028QE-mail:[e-mail]1,223133331.6502212.6500933.650101InvestigationProgressonPMCatalyticMaterialsPurifyingAutomotiveEmissionZHANGAimin1,2,NINGPing2,HUANGRongguang3,HEXiaokun1,ZHAOYunkun3,GUYongwan3,HUANYuanfeng3,YANGDongxia3(1.KunmingInstituteofPreciousMatals,Kunming,Yunnan650221,China;2.KunmingUniversityofScience&Technology,Kunming,Yunnan650093,China;3.KunmingSino-PlatinumMetalsCatalystCo.Ltd.,Kunming,Yunnan650101,China)Abstract:TheapplicationofPMs,suchasPt,Pd,Rhandsoon,inauto-emissionpurificationcatalystswerereviewed.SeveraltypesofPMcatalyticmaterialswereintroduced.ItwasclarifiedthatalthoughPMsarethekeycomponentsinauto-emissionpurificationcatalyststoday,thecompositecatalysismaterialscontainingtracePMs,REmetals,transitionmetalsoralkalineearthmetaloxideswillbecomethemainproductsinthestrictemissionlawandmarketcompetition.Thecompositeswillplayanimportantruleinprotectingenvironmentandreasonableuseofresources.Keywords:Metalmaterials;Preciousmetals;Catalyticmaterials;Auto-emissionpurificationPtPdRhO643.36A1004-0676200503-0066-053671PtPdRhOsIrRuAuAg8PtPdRh3RuAuAg1.1Pt1COHCsCOHCsPtCOHCsNOxPtNOCOSO2PtRhNOxRhNOxN2Pt11050PtCOT50%95155190Pt180210265PtNOxRhPtCRTNONO2NO2O2300NO+O2─→─PtNO21NO2+C─→─PtN2+CO2212NOxCO1.2PdPt2070PdCOHCSPdPtRhPdPbSPtRhPdPtRh2080PbPdPt1989Pd/RhPd/RhPdRhPd-Rh20801990PdPtPtRh199277000troy-oz10001500RhPdRhPdAlliedSigna2.025g/LPd0.714g/L51/PdLaCe2090PdPtPdPdPtRhPd6826Pt/RhCOHCNOxPdLaCeZrBaSekiba[2]Pd2.83g/L-A/FPt-Rh0.88g/LA/FNOPt-RhCeLaBaCsNiCoNOPd-Ce-Ba/Al2O3NO1995Hirohisa[3]Pd-Rh1.32070NOxRhNOxRhCOHCNOxRhNOxO2N2NH3N24ddddRhdd5RhV61.4PtPdRhAuAgRbAuAuCOAuCO203KAuAu23nmAuCONOxAu7AuNOCONOAuAu[8]22.1NOxPbPS20709ABO3AB[10]LaFeO3LaFe0.96Pd0.04O3LaCoO3LaCo0.96Pd0.04O3TPRPdABO3RhLa-MnNOxPt-RhPt-RhCeO2-Al2O3Pt-RhLaCuO4CuPtLaCuO4Pt-RhCeO2-Al2O3JovanovicRuLa0.7Sr0.3Cr0.95Ru0.05O30.751.40369112.2PtRhPdAuIrAgPt/PdPt/RhPt/Pd/RhSiO2ZrO2TiO2ZnOFeCrAlNiCrAl12PdZAC1.0g/LPdNOxPdBaLaLaCeO2ZrPd13Ce0.6Zr0.4O2PdNO185NO100%14Ce0.6Zr0.4O2PdCeO2Ce0.6Zr0.4O2NO15Pd/Al2O3Pd/Al2O3-CeO2PdC3H6NOPd/Al2O32Pd/Al2O3-CeO2Pd0.5%Pd/Al2O32.3Pd/Al2O3AuAg1173KNON275%O2SO2Pt-Pd-RhAgNOAg/Pt/RhPtAgPt-RhHCNOxPdHCEngelhardPt-RhPdNOxHCNOxPdRhNOxRh2Descorme16OSCRuOSC42.4NOxZSM-5MCM-41MFISAPO-34XYLCuPtCoAgFeGaInHCeZnMnNiCaLa7026Pt-ZSM-5SO2MazdaMotorMFIPt-MFIIr-MFIRh-MFINOx51%PtMCM-41NOx17SAPO-34Cu-ZSM-5Ag/SAPO-34O23.6%573673KNON270%Cu-ZSM-518AgAgCl/H-ZSM-5AgAgCl2.5NOx22NO2NO2NONONO2NO2N2Pt/In/H-ZSM-5Rh/In/H-ZSM-5Pd/Co/H-ZSM-5Mn2O3Sn-ZSM-5Co/Al2O3MnO2Au/Al2O3La0.59Sr0.39MnO3Al2O3[19][20]2.6COHCNOxPtHCNOxCNOxPt/ZSM-5Pt/DOCHCCONOxNOx3[1],,.[J].,2001,222:199-200.[2]CooperBJ.Platinumcatalystsforautomotive[J].PlatinumMetalsReview,1994,38(1):2.[3]HirohisaTanaka,HirotoshiFujikawa,IchiroTakashi.Perovskite-Pdthree-waycatalystsforautomotiveapplications[N].SocietyofEngineersPaper,No.930251,1993.[4],,.RhPt-Pd-Rh/Al2O3[J].,2002,201:23-26.[5],,.[J].,2002,20:30-34.[6],,.[J].,2002,232:6-10.[7]UedaA.Reductionofnitrogenmonoxidewithpropeneinthepresenceofoxygenandmoistureovergoldsupportedon505026[12]SakaiY,Schneider-MuntauHJ.Ultra-highstrength,highconductivityCu-Agalloywires[J].Acta.Mater.,1997,45:1017.[13]SakaiY,InoueK,MaedaH.Newhigh-strength,high-conductivityCu-Agalloysheets[J].Acta.Metall.Mater.,1995,43(4):1517.[14]ZhangXiaohui,NingYuantao,LiYongnian,etal.MicrostructureandpropertiesofheavilydeformedCu-10Agalloyinsitufilamentarycomposite[J].TheChineseJournalofNonferrousMetals,2002,12:115.[15]JonesH.Thestatusofrapidsolidificationofalloyinresearchandapplication[J].J.Mater.Sci.,1984,19(4):1043.[16]FrommeyerG,WassenmannG.Microstructureandanomalousmechanicalpropertiesofinsituproducedsilver-coppercompositewire[J].ActaMetall.,1975,23:1353.[17]KarasekKR,BevkJ.Normal-stateresistivityofinsituformedultrafinefilamentaryCu-Nbcomposites[J].J.Appl.Phys.,1981,52(3):1370.[18]SakaiY,InoueT,AsanoT,etal.DevelopmentofhighstrengthhighconductivityCu-Agalloyforpulsedmagnets[J].IEEETrans.Magn.,1992,28:888.70metaloxides[J].Appl.Catal.B:Environ.,1997,12:81.[8],,.[J].,2002,128:794-799.[9]LibbyWF.Promisingcatalystforautoexhaust[J].Science,1971,171:499.[10],,.Pd-TWC[J].,2000,262:68-72.[11],.[J].,1999,73:52-61.[12],.ZrO2,TiO2-Al2O3OPtPd/Al2O3[J].,1995,15(2):232-238.[13],,.CexZr1-xO2[J].,2003,20(2):72-73,104.[14],,.[J].,2003,20(2):159-162.[15],.PdNO[J].,2001,22(1):62-66.[16]DescormeC.MadierY,DuprezD,etal.SurfaceMobilityofOxygenSpeciesonMixed-OxidesSupportedMetals[S].12thInternationalCongressonCatalysis,2001.[17],,.Ag-ZSM-5NO[J].,2002,22(4):293-296.[18],.AgCl/H-ZSM-5NO[J].,2003,11(1):37-39.[19],.-[J].,2000,20(3):19-22,24.[20],,.[J].,2004,244:63-70.