有机改性对粘土负载镍催化剂的促进作用及其萘加氢性能.pdf

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1、ChineseJournatofCatalysis35(2014)546—552催化学报2014年第35卷g4期1www．chxbcnava．1Iableatwww．scienced汁ect．comcienCeDl陀Ctjournat；i~hom!e~Paige：wW；eevier。cOre／Iocate／chnjcArticlePromotionofNi／claycatalyticactivityforhydr0genationofnaphthalenebyornicmodifilicationoftclayShibiaoRen，HongzhiWen，Xian

2、zhongCao，ZhicaiWang，ZhipingLei，ChunxiuPan，ShigangKang，HengfuShui样AnhuiKeyLaboratoryofCleanCoalConversionandUtilization，SchoolofChemistryandChemicalEngineering,AnhuiUniversityofTechnology,Ma'anshan243002,Anhui,ChinaARTICLEINFOABSTRACTArticlehistory：ANi／montmorillonite(MMT)catalystwasp

3、reparedbyanimpregnationmethodusingcetyltrime—Received7December2O13thylammoniumbromide[CTAB)-pillaredMMTasthesupportingmatrixandwascharacterizedAccepted7January2014usinginfraredspectroscopy，X-raydiffraction，H2temperature—programmeddesorption，N2adsorp-Published20April2014tion—desorptio

4、n，andultravioletdiffusereflectancespectroscopy．ThecatalyticactivityoftheNi／MMTforthehydrogenationofnaphthalenewasalsoevaluatedTheresultsshowthattheorgan—icmodificationofMMTgreatlyimprovedtheNidispersionandtexturalpropertiesoftheNi／MMTKeywords：Nickelcatalyst．Theas·preparedNi／MMTcataly

5、stshowedhighnaphthaleneconversion(88．2％)inthehydrogenationreaction；thisismuchhigherthanthoseachievedusingNisupportedonpristineOrganicmontmoritloniteHighactivityMMT03．1％)，A1203-pilaredMMT(24．2％]，andSBA一15(68l2％)．Asaresultofthermaldecomposi—tionofCTABpillarsduringreductionoftheNi／MMTca

6、talyst，theCTABpillarsmainlyplayaroleinNaphthalenetheNi／MMTcatalystduringimpregnation．AmechanismforthepromotionoftheNi／MMTcatalyticHydrOgenatiOnactivitybyorganicmodificationduringimpregnationisproposed@2014，DalianInstituteofChemicalPhysics，ChineseAcademyofSciences．PublishedbyElsevierB

7、VAllrightsreserved．1．1ntroductionRecently，supportednoble—metalcatalystswithexcellentperformancehavebeendesignedandprepared，basedontheSupportedNicatalystsareusedinvariousindustriallyim。organophiliccharacteristicsoforganic—PILCs[13，14]，whichportantchemicalprocessessuchas(de]hydr0genati

8、on，improveca