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Chem. Soc. Rev.201241BaoIn situ solid-state NMR for.pdf

Chem. Soc. Rev.201241BaoIn situ solid-state NMR for.pdf

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时间：2019-03-08

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1、ViewOnline/JournalHomepage/TableofContentsforthisissueChemSocRevDynamicArticleLinksCitethis:Chem.Soc.Rev.,2012,41,192–210www.rsc.org/csrCRITICALREVIEWInsitusolid-stateNMRforheterogeneouscatalysis:ajointexperimentalandtheoreticalapproachWeipingZhang,*ShutaoX

2、u,XiuwenHanandXinheBao*Received10thJanuary2011DOI:10.1039/c1cs15009jInsitusolid-stateNMRisawell-establishedtoolforinvestigationsofthestructuresoftheadsorbedreactants,intermediatesandproductsonthesurfaceofsolidcatalysts.Thetechniquesallowidentificationsofboth

3、theactivesitessuchasacidicsitesandreactionprocessesafterintroductionofadsorbatesandreactantsinsideanNMRrotorundermagicanglespinning(MAS).Theinsitusolid-stateNMRstudiesofthereactionscanbeachievedintwoways,i.e.underbatch-likeorcontinuous-flowconditions.Theform

4、ertechniqueislowcostandaccessibletothecommercialinstrumentwhilethelatteroneisclosetotherealcatalyticreactionsonthesolids.Thiscriticalreviewdescribestheresearchprogressontheinsitusolid-stateNMRtechniquesandtheapplicationsinheterogeneouscatalysisunderbatch-li

5、keandcontinuous-flowconditionsinrecentyears.SometypicalprobemoleculesaresummarizedheretodetecttheBrønstedandLewisacidicsitesbyMASNMR.Thecatalyticreactionsdiscussedinthisreviewincludemethanearomatization,olefinselectiveoxidationandolefinmetathesisonthemetaloxid

6、e-containingzeolites.WithcombiningtheinsituMASNMRspectroscopyandthedensityfunctionaltheoretical(DFT)calculations,theintermediatesonthecatalystcanbeidentified,andthereactionmechanismisrevealed.ReactionkineticanalysisinthenanospaceinsteadofintheDownloadedon07N

7、ovember2012bulkstatecanalsobeperformedbyemployinglaser-enhancedMASNMRtechniquesintheinsituflowmode(163references).Publishedon11July2011onhttp://pubs.rsc.org

8、doi:10.1039/C1CS15009JStateKeyLaboratoryofCatalysis,DalianInstituteofChemical1.IntroductionPhysics,Ch

9、ineseAcademyofSciences,457ZhongshanRoad,Dalian116023,China.E-mail:wpzhang@dlut.edu.cn,Heterogeneouscatalysisplaysanimportantroleinchemicalxhbao@dicp.ac.cn;Fax:+86-411-84694447industryduetotheadvantages

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