Preparation of nanostructured porous SiO2-Al2 O3 oxycarbonitride materials obtained by a new chemical precursor method

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creativework.keywordsNanostructured di-urethansils, Oxycarbonitride materials, Porous materials, SiO2-Al2O3, Sol-gelmethod
dc.contributor.authorIvanova Y.
dc.contributor.authorGerganova T.
dc.contributor.authorFernandes M.
dc.contributor.authorSalvado I.
dc.date.accessioned2024-07-10T14:27:03Z
dc.date.accessioned2024-07-10T14:47:24Z
dc.date.available2024-07-10T14:27:03Z
dc.date.available2024-07-10T14:47:24Z
dc.date.issued2009-01-09
dc.description.abstractNanostructured hybrid materials containing Al2O3 were synthesized via a sol-gel method through hydrolysis and co-condensation reactions using trimethylsilyl isocyanate (TMSI) as a new silica source in the presence of tetramethoxysilane (TMOS) and three different quantities (10, 20 and 30 wt.%) of aluminum sec-butoxide (Al(OBusec)3 as a modifying agent. The xerogel nanostructured materials are pyrolyzed in nitrogen atmosphere in the temperature range from 400°C to 1100°C. The transformation of the xerogel hybrid networks into Al-Si oxycarbonitride materials has been investigated by XRD, FTIR, SEM, AFM, and 29Si MAS-NMR. To the best of our knowledge, the work reported here is the first synthesis of porous di-urethanesils modified with aluminum and one of the few examples of alumosilica oxycarbonitride materials. © Versita Warsaw and Springer-Verlag Berlin Heidelberg 2009.
dc.identifier.doi10.2478/s11532-008-0098-0
dc.identifier.issn1895-1066
dc.identifier.issn1644-3624
dc.identifier.scopusSCOPUS_ID:58149185209en
dc.identifier.urihttps://rlib.uctm.edu/handle/123456789/151
dc.language.isoen
dc.source.urihttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=58149185209&origin=inward
dc.titlePreparation of nanostructured porous SiO2-Al2 O3 oxycarbonitride materials obtained by a new chemical precursor method
dc.typeArticle
oaire.citation.issue1
oaire.citation.volume7
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