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OALib Journal期刊
ISSN: 2333-9721
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溶胶-凝胶法制备nixco1-xcoalo4尖晶石型复合氧化物及其催化分解n2o性能
, PP. 81-87
Keywords: n2o分解,nixco1-xcoalo4,溶胶-凝胶法,尖晶石型复合氧化物,钾改性
Abstract:
？用溶胶凝胶法制备了一组nixco1-xcoalo4尖晶石型复合氧化物,并采用表面润湿浸渍k2co3溶液进行了k掺杂改性,用于有氧气氛下的n2o催化分解反应.采用n2物理吸附、x-射线衍射(xrd)、扫描电镜(sem)、h2-程序升温还原(h2-tpr)等技术对催化剂进行了表征,考察了催化剂组成、母液ph值、k负载量等制备参数对其催化活性的影响.结果表明,母液ph值为3、k/(ni+co)物质的量比为0.1的k/ni0.15co0.85coalo4催化剂具有较高的n2o分解活性,450℃n2o可完全分解.助剂k的加入弱化了催化剂表面金属氧键,提高了催化剂的还原性、催化活性和抗水性.
| [1] | rivallanm,ricchiardig,bridigas,zecchinaa.adsorptionandreactivityofnitrogenoxides(no2,no,n2o)onfe-zeodites[j].jcatal,2009,264(2):104-116.
|
| [2] | ohnishic,asanok,iwamotos,chikamak,inouem.alkali-dopedco3o4catalystsfordirectdecompositionofn2ointhepresenceofoxygen[j].cataltoday,2007,120(2):145-150.
|
| [3] | russon,finod,saraccog,specchiav.n2ocatalyticdecompositionovervatiousspinel-typeoxides[j].cataltoday,2007,119(1/4):228-232.
|
| [4] | yanl,rent,wangxl,jid,suojs.catalyticdecompositionofn2oovermxco1-xco2o4(m=ni,mg)spineloxides[j].applcatalb:environ,2003,45(2):85-90.
|
| [5] | yanl,rent,wangxl,gaoq,jid,suojs.excellentcatalyticperformanceofznxco1-xco2o4spinelcatalystsforthedecompositionofnitrousoxide[j].catalcommum,2003,4(10):505-509.
|
| [6] | abu-ziedbm.nitrousoxidedecompositionoveralkali-promotedmagnesiumcobaltitecatalysts[j].chinjcatal,2011,32(2):264-272.
|
| [7] | maniakg,stelmachowskip,kotarbaa,sojkaz,rico-pérezv,bueno-lópeza.rationalesfortheselectionofthebestprecursorforpotassiumdopingofcobaltspinelbasedden2ocatalyst[j].applcatalb:environ,2013,136-137:302-307.
|
| [8] | douz,zhanghj,panyf,xuxf.catalyticdecompositionofn2ooverpotassium-modifiedcu-cospineloxides[j].jfuelchemtechnol,2014,42(2):238-245.
|
| [9] | kimss,leesj,hongsc.effectofadditionceo2torh/al2o3catalystonn2odecomposition[j].chemengj,2011,169(1/3):173-179.
|
| [10] | parres-esclapezs,illán-gómezmj,salinas-martínezdeleceac,bueno-lópeza.ontheimportanceofthecatalystredoxpropertiesinthen2odecompositionoveraluminaandceriasupportedrh,pd,pt[j].applcatalb:environ,2010,96(3/4):370-378.
|
| [11] | arenas-alatorrej,gómez-cortèsa,avalos-borjam,díazg.surfacepropertiesofni-pt/sio2catalystsforn2odecompositionandreductionbyh2[j].jphychemb,2005,109(6):2371-2376.
|
| [12] | smeetspj,selsbf,teeffelenrm,leemanh,hensenejm.thecatalyticperformanceofcu-containingzeolitesinn2odecompositionandtheinfluenceofo2,noandh2oonrecombinationofoxygen[j].jcatal,2008,256(2):183-191.
|
| [13] | pérez-ramírezj,kapteijnf,groenjc,doménecha,mulg,moulijnja.steam-activatedfemfizeolites.evolutionofironspeciesandactivityindirectn2odecomposition[j].jcatal,2003,214(1):33-45.
|
| [14] | xuel,zhangcb,heh,teraokay.promotioneffectofresidualkonthedecompositionofn2oovercobalt-ceriummixedoxidecatalyst[j].cataltoday,2007,126(3/4):449-455.
|
| [15] | obalavál,fílav.kineticanalysisofn2odecompositionovercalcinedhydrotalcites[j].applcatalb:environ,2007,70(1/4):353-359.
|
| [16] | yanl,rent,wangx,gaoq,jid,suoj.excellentcatalyticofznxco1-xco2o4spinelcatalystfordecompositionofnitrousoxide[j].catalcommun,2003,4(10):505-509.
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