Intracrystalline Diffusion in Mesoporous Zeolites

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dc.contributor.authorMehlhorn, Dirkko
dc.contributor.authorValiullin, Rustemko
dc.contributor.authorKaerger, Joergko
dc.contributor.authorCho, Kang-Heeko
dc.contributor.authorRyoo, Ryongko
dc.date.accessioned2013-03-12T07:10:06Z-
dc.date.available2013-03-12T07:10:06Z-
dc.date.created2012-06-11-
dc.date.created2012-06-11-
dc.date.issued2012-04-
dc.identifier.citationCHEMPHYSCHEM, v.13, no.6, pp.1495 - 1499-
dc.identifier.issn1439-4235-
dc.identifier.urihttp://hdl.handle.net/10203/101619-
dc.description.abstractSpecially synthesized extra-large crystallites of zeolite LTA with intentionally added mesoporosity are used for an in-depth study of guest diffusion in hierarchical nanoporous materials by the pulsed field gradient NMR technique. Using propane as a guest molecule, intracrystalline mass transfer is demonstrated to be adequately described by a single effective diffusivity resulting from the weighted average of the diffusivities in the two (micro- and meso-) pore spaces. Gas-kinetic order-of-magnitude estimates of the diffusivities are in satisfactory agreement with the experimental data and are thus shown to provide a straightforward means for predicting and quantifying the benefit of hierarchically structured nanoporous materials in comparison with their purely microporous equivalent.-
dc.languageEnglish-
dc.publisherWILEY-V C H VERLAG GMBH-
dc.subjectNMR-
dc.titleIntracrystalline Diffusion in Mesoporous Zeolites-
dc.typeArticle-
dc.identifier.wosid000302867200022-
dc.identifier.scopusid2-s2.0-84859902891-
dc.type.rimsART-
dc.citation.volume13-
dc.citation.issue6-
dc.citation.beginningpage1495-
dc.citation.endingpage1499-
dc.citation.publicationnameCHEMPHYSCHEM-
dc.identifier.doi10.1002/cphc.201200048-
dc.embargo.liftdate9999-12-31-
dc.embargo.terms9999-12-31-
dc.contributor.localauthorRyoo, Ryong-
dc.contributor.nonIdAuthorMehlhorn, Dirk-
dc.contributor.nonIdAuthorValiullin, Rustem-
dc.contributor.nonIdAuthorKaerger, Joerg-
dc.type.journalArticleArticle-
dc.subject.keywordAuthorintracrystalline diffusion-
dc.subject.keywordAuthormass transfer-
dc.subject.keywordAuthormesoporous materials-
dc.subject.keywordAuthorNMR spectroscopy-
dc.subject.keywordAuthorzeolites-
dc.subject.keywordPlusNMR-
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