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31320106ChineseRareEarthsVol31,No3June2010*李维勇1,陈曦2,赵月昌2,顾捐永2,高玮2,马新胜1(1,200237;2,201613):,:;;:O61433;TB383:A:10040277(2010)03007507,,,(CO)(HC)(NONO2,NOx)[1,2],,CO2(A/F),/,,CO,HC,NOx[3~5],[6~10]1组成对储氧材料性能的影响CeO2,ZrO2CeO2,[10~16],,11CeO2-ZrO2,,CeO2-ZrO2BET30m2/g,PtCeO2-ZrO2BET,CeO2-ZrO2BET30m2/g,PtBET,,PtCeO2-ZrO2PtCeO2-ZrO2,BET,50%,;50%,BET,;60%,BET,,50%CeO2-ZrO2,Ce2Zr2O[17]8,,243mol/g,029,071,50%,BETCeO2-ZrO2Ce4+OZr4+,ZrO257%,Ce4+Zr4+,Zr4+,Zr4+,,Ce4+,;ZrO257%,Ce4+Zr4+,Ce4+,Ce4+,BET[18]MasaakiH[19]XRDTPRFT-IR,*:20090911:(1984),,,,:31,,Rh/CZ-50/50(50/50),Rh/CZ-50/50,450,,DamyanovaS[20]Ce-Zr,,,12%,,,Ce-Zr12CeO2-ZrO2,LaY[21,22]ZrO2Y2O3La2O3,Y3+La3+Zr4+,O2-[23]YCZLaCZMO2,Zr,O2-,O2-4M4+,848O2-,4,O2-,,PackerRJ[24],CeLa,LaCe,,,,LaCe,,,La,AtribakI[25],LaY,,,,,,,,,Ce,,LaY[26],9006h,,60m2/g,957mL/g,[27],,,Ce076Zr024O2,,;LaPr,Pr4+Ce4+,PrO2,CeO2,Pr3+/Pr4+,Ce[28,29]CeO2Pr3+,,PrO2La2O3,,PrO2-Al2O3PrAlO3-Al2O3,Ce06Zr04O2(CZ),Ce06Zr035Y005O2(CZY),Pr060Zr040O2(PZ)Pr060Zr035Y005O2(PZY),XRD,CZCZYCe075Zr025O2ZrO187,PZPZY,PrZrCe;XPS,CZPZCe/ZrPr/Zr034069,15,Y,Ce/ZrPr/Zr078182,YZr,,TPRXRD,PZPr(OH)3Pr2O3,PZYPr(OH)3PrO183,,,PZPZY763:;TPRPZY,,,O2-TPD,,CZCZYPZPZY360mol/g540mol/g400mol/g750mol/g,Y,,PZY;18O/16O,PrCe,Y,PrCe[30],Ce055Zr035Y005La005O2,La/Al2O3,,,C3H8,CONO,,,C3H8,CONO132,133137,,125,6000km,!12000km,C3H820%,NO,CO50%,[31],Ce065Zr025Y007La003O2,La/Al2O3,,,C3H8,CONO,,,C3H8,CONO136,11125,,JETTA-MT,HCCOV1/2,NOHC,CONO,HC,NO,,,HC,CONOV63%,39%81%,V[32]Zhao[33]Ce-Zr-Sr,Sr,,Sr2+Ce3+,,,,,8005h,Ce-Zr-SrBET15m2/g,Ce-Zr(9m2/g)[34]5501000NdCexZr1-xO2(x=08,06,02),Ce/ZrNdCexZr1-xO2,NdCexZr1-xO2(x=08,06,02)CeO2-ZrO2-Nd2O3,Nd2O3,Ce08Zr015Nd005O2Ce06Zr035Nd005O2,Ce02Zr075Nd005O2,,NdCe/ZrCexZr1-xO2,Ce06Zr035Nd005O213AlCeO2-ZrO2[35],Al,Al2O3,,,SEMEDX,1000,CZCeZr,,CZ+Al2O3(CZAl2O3)CZ,Al2O3CZ,ACZ,CZAl2O3,Al2O3CZ,ACZCZ700,ACZ100m2/g,CZ,700~1000,ACZCZ1000ACZ20m2/g,CZ1m2/g,CZ+Al2O3CZACZ1,1,,PtCZ,,,PtACZ,,7731,Al2O3CZ,CZ,CZ,,,1Table1OxygenstorageandreleasecapacityoffreshandagedcatalystsOSC-c/(mol/g)OSC-r/(mol/g∀s)Pt/nmPtCZ(F)31713184PtCZ(A)22503196PtCZ+Al2O3(F)24216167PtCZ+Al2O3(A)18504187PtACZ(F)25220364PtACZ(A)1921497Chia-CheChuang[36]ACZ,ACZ,1000815m2/g,ACZ621m2/g,AlCZO(171m2/g)ACZ,,Al,,A,l2氧化剂对储氧材料性能的影响H2O2,,Ce3+Ce4+,H2O2,Zr4+,[37],4f-4,fH2O2Zr4+[Zr4(OO)2(OH)4]8+[38],Ce4+Ce(O2)(OH)2Ce(OH)4-x(OOH)x,[39]ScholesFH[40]H2O2CeO2,H2O2,CeO2,TGA,,Ce4+H2O2,-OHCe-O-Zr,,,H2O2,Ce4+Zr4+,-OH,[41],3水热处理对储氧材料性能的影响,(),,,,,,,,,,,RobertaDM[42],,1807h~8h,CeO2-ZrO2100%,,CeO2-ZrO2,,18005h,0031mL/g0152mL/g,,05h~1h,,,7007nm~8nm,1000,7nm,,,,BET,:#∃/,,,,7nm,,,[43],783:CexZr1-xO2XRD,CeO2,;,,180,,ZrO2,CexZr1-xO24高温还原处理对储氧材料性能的影响,,,,AkiraM[44],,10005h,,H2(5%)/N2ACZ,,;,ACZ(1%1%1)ACZ(2%1%1),35m2/g,55m2/g,,,,;XRD,900,,1000,,,,,5稀土储氧材料的研究方向,,,,:[1],[J],2004,17(1):3136[2][J],1999,20(4):2125[3]AneggiE,BoaroM,LeitenburgC,eta1Insightsintotheredoxpropertiesofceria-basedoxidesandtheirimplicationsincatalysis[J]JournalofAlloysandCompounds,2006,408:10961102[4]DiMonteR,KasparJHeterogeneousenviromentalcatalysis-agentleart:CeO2-ZrO2mixedoxidesascasehistory[J]CatalysisToday,2005,100(12):2735[5]LoongCK,OzawaMTheroleofrareearthdopantsinnanohasezirconiacatalystsforautomotiveemissioncontrol[J]JournalofAlloysandCompounds,2000,303:6065[6]FornasieroP,DiMonteR,RaoGR,etalRh-loadedCeO2-ZrO2solidsolutionsashighlyefficientoxygenexchangers:dependenceofthereductionbehaviorandtheoxygenstoragecapacityonthestructuralproperties[J]JournalofCatalysis,1995,151(1):168177[7]FornasieroP,BalducciG,KasparJ,etalMetal-loadedCeO2-ZrO2solidsolutionsasinnovativecatalystsforautomotivecatalyticconverters[J]CatalysisToday,1996,29(14):4752[8]DeleitenburgC,TrovarelliA,ZamarF,etalAnovelandsimpleroutetocatalystswithahighoxygenstoragecapacity:thedirectroom-temperaturesynthesisofCeO2-ZrO2solidsolutions[J]JournaloftheChemicalSociety,ChemicalCommunications,1995,21:21812182[9]NigaraY,MizusakiJ,IshigameMMeasurementofoxygenpermeabilityinCeO2dopedCSZ[J]SolidStateIonics,1995,79:208211[10]TrovarelliA,ZamarF,LlorcaJ,etalNanophasefluorite-structuredCeO2-ZrO2catalystspreparedbyhigh-energymechanicalmillingAnalysisoflow-temperatureredoxactivityandoxygenstoragecapacity[J]JournalofCatalysis,1997,169(2):490502[11]IzuN,OmataT,Otsuka-Yao-MatsuoSOxygenreleasebehaviorofCe(1-x)ZrxO2powdersandappearanceofCe(8-4y)Zr4yO(14-)solidsolutionintheZrO2-CeO2-CeO15system[J]JournalofAlloysandCompounds,1998,270(12):107114[12]HoriCE,PermanaH,KysNg,etalThermalstabilityofoxygenstoragepropertiesinamixedCeO2-ZrO2system[J]AppliedCatalysisB:Environmenta,l1998,16(2):105117[13]TerribileD,TrovarelliA,LlorcaJ,etalThepreparationofhighsurfaceareaCeO2-ZrO2mixedoxidesbyasurfactant-assistedapproach[J]CatalysisToday,1998,43(12):79887931[14]Otsuka-Yao-MatsuoS,OmataT,IzuN,etalOxygenreleasebehaviorofCeZrO4powdersandappearanceofnewcompounds!andt*[J]JournalofSolidStateChemistry,1998,138(1):4754[15]MasuiT,PengYM,MachidaK,etalReductionbehaviorofCeO2-ZrO2solidsolutionpreparedfromceriumzirconyloxalate[J]ChemistryofMaterials,1998,10(12):40054009[16]HiranoM,SudaAOxygenstoragecapacity,specifics