Solventless acid-free synthesis of mesostructured titania: nanovessels for metal complexes and metal nanoclusters

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dc.citation.epage36en_US
dc.citation.issueNumber1en_US
dc.citation.spage30en_US
dc.citation.volumeNumber13en_US
dc.contributor.authorDag, Ö.en_US
dc.contributor.authorSoten, I.en_US
dc.contributor.authorÇelik, Ö.en_US
dc.contributor.authorPolarz, S.en_US
dc.contributor.authorCoombs, N.en_US
dc.contributor.authorOzin, G. A.en_US
dc.date.accessioned2016-02-08T10:30:52Z
dc.date.available2016-02-08T10:30:52Z
dc.date.issued2003en_US
dc.departmentDepartment of Chemistryen_US
dc.description.abstractA new and highly reproducible method to obtain mesostructured titania materials is introduced in this contribution. The meso-structured titania is obtained by employing self-assembled structures of non-ionic alkyl-poly(ethylene oxide) surfactants as templates. The materials are produced without additional solvents such as alcohols, or even water. Only the titanium(iv) ethoxide and the surfactant (C12EO10) are needed. Water, in the form of that attached to the surfactant and from the atmosphere, induces growth of titania nanoclusters in the synthesis sol. It is indicated that these nanoclusters interact with the surfactant EO-head groups to form a new titanotropic amphiphile. The new amphiphiles self-assemble into titanium nanocluster-surfactant hybrid lyotropic phases, which are transformed to the final mesostructured materials by further condensation of the titania network. The titania materials can be obtained also with noble-metal particles immobilized in the mesostructured framework. It is seen that when different metal salts are used as the metal precursors, different interactions with the titania walls are found. The materials are characterized by X-ray diffraction (XRD), polarization optical microscopy (POM), transmission electron microscopy (TEM), UV-vis spectroscopy, and micro-Raman analysis.en_US
dc.description.provenanceMade available in DSpace on 2016-02-08T10:30:52Z (GMT). No. of bitstreams: 1 bilkent-research-paper.pdf: 70227 bytes, checksum: 26e812c6f5156f83f0e77b261a471b5a (MD5) Previous issue date: 2003en
dc.identifier.doi10.1002/adfm.200390001en_US
dc.identifier.issn1616-301X
dc.identifier.urihttp://hdl.handle.net/11693/24543
dc.language.isoEnglishen_US
dc.publisherWiley - V C H Verlag GmbH & Co. KGaAen_US
dc.relation.isversionofhttp://dx.doi.org/10.1002/adfm.200390001en_US
dc.source.titleAdvanced Functional Materialsen_US
dc.subjectAcidsen_US
dc.subjectCondensationen_US
dc.subjectNanostructured materialsen_US
dc.subjectPrecious metalsen_US
dc.subjectRaman spectroscopyen_US
dc.subjectSelf assemblyen_US
dc.subjectSolsen_US
dc.subjectSolventsen_US
dc.subjectSurface active agentsen_US
dc.subjectSynthesis (chemical)en_US
dc.subjectTransmission electron microscopyen_US
dc.subjectUltraviolet spectroscopyen_US
dc.subjectX ray diffraction analysisen_US
dc.subjectPolarization optical microscopy (POM)en_US
dc.subjectPrecursorsen_US
dc.subjectTitanium compoundsen_US
dc.titleSolventless acid-free synthesis of mesostructured titania: nanovessels for metal complexes and metal nanoclustersen_US
dc.typeArticleen_US

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