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dc.contributor.authorEslava, Salvador
dc.contributor.authorDelahaye, Stephane
dc.contributor.authorBaklanov, Mikhail R.
dc.contributor.authorIacopi, Francesca
dc.contributor.authorKirschhock, Christine E. A.
dc.contributor.authorMaex, Karen
dc.contributor.authorMartens, Johan A.
dc.date.accessioned2017-05-03T15:30:43Z
dc.date.available2017-05-03T15:30:43Z
dc.date.issued2008
dc.date.modified2012-03-29T04:50:57Z
dc.identifier.issn0743-7463
dc.identifier.doi10.1021/la800086y
dc.identifier.urihttp://hdl.handle.net/10072/44071
dc.description.abstractWe present a study on the hydrophobization of spin-on Silicalite-1 zeolite films through silylation with trimethylchlorosilane. Microporous and micro-mesoporous Silicalite-1 films were synthesized by spin coating of suspensions of Silicalite-1 nanozeolite crystallized for different times. Ellipsometric porosimetry with toluene and water adsorbates reveals that silylation decreases the porosity and makes the films hydrophobic. The decrease in porosity depends on the exposed surface area in the pores. Water contact angle measurements confirm the hydrophobicity. Fourier transform infrared spectroscopy reveals that the trimethylsilyl groups are chemisorbed selectively on isolated silanols and less on geminal and vicinal silanols due to steric limitations. Time-of-flight secondary-ion mass spectroscopy and in situ ellipsometry analysis of the reaction kinetics show that the silylation is a bulk process occurring in the absence of diffusion limitation. Electrical current leakage on films decreases upon silylation. Silylation with trimethylchlorosilane is shown to be an effective hydrophobization method for spin-on Silicalite-1 zeolite films.
dc.description.peerreviewedYes
dc.description.publicationstatusYes
dc.languageEnglish
dc.language.isoeng
dc.publisherAmerican Chemical Society
dc.publisher.placeUnited States
dc.relation.ispartofstudentpublicationN
dc.relation.ispartofpagefrom4894
dc.relation.ispartofpageto4900
dc.relation.ispartofissue9
dc.relation.ispartofjournalLangmuir
dc.relation.ispartofvolume24
dc.rights.retentionN
dc.subject.fieldofresearchSynthesis of Materials
dc.subject.fieldofresearchcode030306
dc.titleReaction of Trimethylchlorosilane in Spin-On Silicalite-1 Zeolite Film
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
gro.rights.copyrightSelf-archiving of the author-manuscript version is not yet supported by this journal. Please refer to the journal link for access to the definitive, published version or contact the author[s] for more information.
gro.date.issued2008
gro.hasfulltextNo Full Text
gro.griffith.authorIacopi, Francesca


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