纖維結(jié)構(gòu)化Ag催化填料及其低溫催化醇?xì)庀噙x擇氧化性能研究.pdf

1、華東師范大學(xué)碩士學(xué)位論文纖維結(jié)構(gòu)化Ag催化填料及其低溫催化醇?xì)庀噙x擇氧化性能研究姓名：鄧苗苗申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：物理化學(xué)指導(dǎo)教師：路勇20100501AbstractOxidation0falcohOlstocarl)onylcompoundsisapiVotalprocessinchemicalindust巧，butexigentlyneedsafIlndamentalshiftt0thecatalyticaembicoxidat

2、ionf如mthepollutingmethodsbasedontoxic柚d甑pensivestoichiometricinorganicoxidantsG硒一ph淞eseleCtiVeoxidationofvolatilealcoholsc鋤proceediIlcontinuouspackedbedreactorSwithhigIlerproductyieldingrate，beingmoreattractiVefromthetec

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4、talystsystemhasbeendemonstratedforlowtemperaturcgas—phaseselectiVeoxidationalcoholsTheVoidagetunableNi—fiber(10—99vol％)microfibrousstructurew嬲sucCessfullypreparedusingregularwetlayuppape咖akin∥sinteringmethodAnadditionalp

5、re—wettingstepwithwaterandoVemightdryingwaspe怕姍edin0rdertomaketheNi—fibersurfaceeasilywettablenecatalystthatresultedinthebestreactivity／selectivitywasobtainedbyloading10wt％silVerontoNifiberfollowedbycakinationinairat600。

6、Cfor4hnw雛foundthatenllanCedwettabilityoftheNifibersuppOrtw弱cmcialfbftheinco巾oration0fmoreAgcationsandselectiVelyactiVeoxygenspeciesofthecoⅡespondingAg／Ni一肋erMcatalystth觚theAg／Ni—fibercatalystusinguntrcatedsupponAsaresult

7、，theAg小i—fiberMcatalystexhibitedmuchbetterlowtemperatufeaCtivity／selectiVityth柚theAg／NifibercatalystInaddition，themiCro舶rousstmcturedsilvercatalystw舔showntoproVidesignific觚tpromotion0fsteadystatcvolumetricrcactionratccom

8、paredtotheele咖lyticsilver，attributablet0thclargevoidagc柚dllighhea恤asstmsferDeactiVati∞ofthe∞talystw弱att曲utedtothefomationofNixCcompoundsthatlil【elyCIlto仃02actiVation／tmsportationbeMeenthesuppon柚dsilVerpanicIesSpentcataly