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NH3-SCR反應(yīng)中NOx吸附的原位紅外數(shù)據(jù)分析總結(jié)表2.NOx的吸附催化劑峰位波數(shù)值(cm-1)解釋參考文獻Mn(0.4)/TiO21580,1555bidentatenitrateZ.Wu,etal.Environ.Sci.Technol.41(2007)5812-58171530,1275monodentatenitrate1440nitrocompounds1625NO2Fe(0.1)-Mn(0.4)/TiO21603,1250bridgednitrateZ.Wu,etal.Environ.Sci.Technol.41(2007)5812-5817Fe(0.1)-Mn(0.4)/TiO21612,1618,1244bridgingnitratespeciesZ.Wu,etal.Environ.Sci.Technol.41(2007)5812-58171583bidentatenitratespecies1543,1518,1286,1296monodentatenitrateV2O5/CeTiOxV2O5/CeO21298,1542monodentatenitrateZ.Lian,etal.Ind.Eng.Chem.Res.53,(2014)19506-195111200,1605bridgingnitrate1238,1573bidentatenitrateMnOx/TiO21581,1558,1544bidentatenitrateZ.Wu,etal.J.ColloidInter.Sci.352(2010)143-148.1603,1244bridgednitrate1521,1269monodentatenitrate1625adsorbedNO2MnCe,NbMnCe,WMnCe,MoMnCe1450-1435ν3stretchvibrationsofalinearlycoordinatednitriteJ.Nie,etal.Chin.J.Catal.35(2014)1281-12881025-1020ν1stretchvibrationsofalinearlycoordinatednitrite1195anionicnitrosyl(NO?)speciesCe-Mn/TiO2Ca-Ce-Mn/TiO21905,1844weaklyadsorbedNOspeciesY.Liu,etal.,J.Phys.Chem.C116(2012)16582-16592.1615adsorbedNO2species1580,1539,1277,1243nitratespecieswithdifferentstability1007N23700(負峰)isolatedsurfaceOH?groups3482H-bondedhydroxyls1574,1277,1246nitratespecies1485monodentatenitrate1328bridgeNO21619weaklyabsorbedNO21580,1246monodentatenitrate1279bridgenitrate1538bidentatenitrateMnOx/Al2O31685,1459,1398NH4+ionsformedduetotheH2OproductionoftheW.S.Kijlstra,etal.J.Catal.171(1997)219-230.3400-3600H2O1231bridgednitrites1320monodentatenitrites1579bidentatenitrates1603(負值),accompaniedbysignificantlydecreasedIR-absorptionat1180–1200cm-1coordinatedNH3atMn3+sites1533NH2species1466linearNH4Ce0.62Zr0.38O21470-1375nitritomonodentatespecies(vN=O)M.Adamowska,etal.Catal.Today137(2008)288-291.1206-1065nitritomonodentatespecies(vN-O)1315-1265nitritobidentate(vs)1203-1176nitritobidentate(vas)1350-1250nitrocompounds(vs)1650-1375nitrocompounds(vas)1530-1480,1290-1250nitratesmonodentates1585-1500,1300-1260nitratesbidentates1650-1600,1225-1170nitratesbridging1027chelatingnitrate1240bidentatenitrate1528monodentatenitrateCo3O4,Mn0.05Co0.95Ox1273monodentatenitritesH.Hu,etal.J.Phys.Chem.C,119(2015)22924-229331293,1319Nitrocompound1448,1471linearnitrites1544bidentatenitrates1614gaseousNO21238bridgednitrates1280monodentatenitritesabroadbandcenteredat1489linearnitrites1550bidentatenitrates1618gaseousNO2MnOx,Sm-MnOx1624bridgednitrateD.Meng,etal.,ACSCatal.5(2015)5973-59831442ionicnitrate1033monodentatenitrate1542,1309,1296bidentatenitrate1212bridgednitrite1559bidentatenitrate1201bridgednitrite1286bidentatenitrate1296,1539bidentatenitrate1636bridgednitrate1038monodentatenitrate1434ionicnitrateCeaTabOx1242,1601bridgingnitrateT.Zhangetal.,Appl.Catal.B:Environ.176–177(2015)338–3461436M-NO2nitrocompounds1459monodentatenitrite1532monodentatenitrate1576bidentatenitrate1621adsorbedNO21455monodentatenitriteMnOx/TiO21581,1541bidentatenitrateN.Tang,etal.J.Phys.Chem.C115(2011)8214-82201603,1244,1630bridgednitrate1522,1276monodentatenitrate3683(負值),3870(負值)theconsumptionofisolatedsurfaceOHgroups3600-3000theabsorptionofH-bondedhydroxylsCe/TiO2Cu/TiO2Ce-Cu/TiO21580bidentateL.Chen,etal.ACSAppl.Mater.Inter.Sci.2014,6:8134-8145.1230bridgednitrate1280,1610monodentatenitrate1885weaklyadsorbedcoppermononitrosyls(Cu2+?NO)1907weaklyadsorbedNOCe/TiO2Fe(0.2)-Ce/TiO21605NO2Y.Shu,etal.J.Phys.Chem.C116(2012)25319-253271290,1530monodentatenitrate1240bridgingnitrate1020,1550,1580bidentatenitrate3700(負峰)theinteractionbetweensurfacebasichydroxylsandNOx1430nitrocompounds1240→1260thedeformationofnitratespeciesMn0.2Ti0.8OxCe0.1Ti0.9OxMn0.2Ce0.1Ti0.7Ox1611,1549,1277theadsorbedNO2speciesZ.Liu,etal.ACSAppl.Mater.Inter.6(2014)14500-14508.1624adsorbedNO2species1281chelatingnitrite1585,1528bidentatenitrate1459trans-N1351M?NO2nitrocompounds1244bridgingnitrate1622NO21555monodentatenitrate1236M?NO2nitrocompoundsandbridgingnitratepeakCeO2CeO2/HPW3567H-bondedhydroxylsX.Weng,etal.J.ColloidInterf.Sci.461(2016)9-141531,1279monodentatenitrates1598,1241bridgingnitrates1578,1305bidentatenitrates1407NO1357cis-N2O22-band,wasgeneratedfromtheNOxadsorptiononCeO21980thenitrogenbondedwithterminaloxygeninKegginstructure[v(NOt)]ofHPWCeO2CeO2/HPW2268generatedfromNOabsorptionontotheBr?nstedacidsites,whichyieldedNOH+andHNO2asinglesymmetricv(N=O)X.Weng,etal.J.ColloidInterf.Sci.461(2016)9-141091cis-N2O

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