不同原料制备Al2O3蜂窝陶瓷涂层的研究

©1994-2009ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.:(1959),,,,2Al2O3,,,(,100081):,(XRD)2Al2O3,:;2Al2O3;;;:TQ426.65;TQ133.1:A:1008-1143(2002)03-0052-04Preparationof2Al2O3coatingsforceramichoneycombbydifferentmethodsWANGLi2qiong,WANGDa2xiang,ZHANGXing2yan,FENGChang2gen(SchoolofMechno2ElectronicsEngineering,BeijingInstituteofTechnology,Beijing100081,China)Abstract:Fivedifferent2Al2O3coatingsforceramichoneycombandcorrespondingthree2waycata2lysts(TWC)werepreparedfromdifferentmaterialsbyimpregnationandslurrycastingmethod.Dif2ferenceamongcrystalform(XRD),surfaceareaandcatalyticactivityofthefivecoatingsandthecaus2eswerediscussed.Itisconcludedthatcoatingswithlargesurfaceareaandfavourablecrystalformcanbeobtainedusingthesefivematerials,butusingpseudo2boehmiteandaluminumhydroxidesolmonomerasrawmaterialsismoreapplicable.Keywords:material;preparation;ceramichoneycomb;2Al2O3coatings;three2waycatalystCLCnumber:TQ426.65;TQ133.1Documentcode:AArticleID:1008-1143(2002)03-0052-04(2Al2O3),,,2Al2O3[1]2Al2O32Al2O3,,11.12Al2O3AlCl36H2O(A.R)(C.P.,200)41,901.101.15103kg/m3,pH3.54,10%(400,«1020mm,)20025103INDUSTRIALCATALYSISMay2002Vol.10No.3©1994-2009ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(NO3)39H2O(A.R.),611.11.32Al2O32Al2O3(50nm)60%,24,1,1.11.42Al2O3,,2%8%10%1.11.52Al2O3,,,2%5%12%14%1.122:2Al2O335,,24;1203,6003,:2Al2O3,,3ST203,1D/max22400X2(XRD),21,[2],[3]COHCNOx,312Al2O3Table1Loadingandsurfaceareaof2Al2O3coatingpreparedfromdifferentmaterials/wt%13.7512.210.2911.10/103m2kg-115.6215.31139.6A13.9716.70;22Al2O3XRDTable2ComparisonofthemainpeaksinXRDspectraof2Al2O3withreferencespectra12ddI/I02DdI/I021.3960-0.004010066.9801.9812+0.00128945.7601.3960-0.004010066.9801.9803+0.00039145.7801.3938-0.006210067.1001.9919+0.01198045.5001.3989-0.001110066.8201.97870.00138945.8201.40080.000810066.7201.97380.00628845.9401.400010066.7591.98008045.786d=d-d;I/I0,I0,10020022:2Al2O353©1994-2009ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.:400,14.69,60000h-11,,,,XRD,267684548XRD,d[4],d0.002nmI/I021,2Al2O33,YR3,NOxCOC3H690%YR3CO4,,2[1],3%,40[1],,,,5420022©1994-2009ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(),,,42Al2O3[1],2Al2O3,,2,,,,,,,,,:[1].2Al2O3[D].,2000.[2].[D].,2000.[3],,.[M].:,2000,261.[4],.[M].:,2000,80.NCT2000,100%;NC9802,NCT2000,,,NCT2000,100,100%,NCT2000,,,NC9802,,,,,6,2001,2000NCT2000NC9802:,20022:2Al2O355