Cyclooctene epoxidation using Nb-MCM-41 and Ti-MCM-41 synthesized at room temperature

dc.creatorGallo, JMR
dc.creatorPaulino, IS
dc.creatorSchuchardt, U
dc.date2004
dc.date44013
dc.date2014-11-18T11:29:54Z
dc.date2015-11-26T17:49:54Z
dc.date2014-11-18T11:29:54Z
dc.date2015-11-26T17:49:54Z
dc.date.accessioned2018-03-29T00:33:02Z
dc.date.available2018-03-29T00:33:02Z
dc.identifierApplied Catalysis A-general. Elsevier Science Bv, v. 266, n. 2, n. 223, n. 227, 2004.
dc.identifier0926-860X
dc.identifierWOS:000222055700010
dc.identifier10.1016/j.apcata.2004.02.010
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/57549
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/57549
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/57549
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1289518
dc.descriptionAn efficient and simple method for preparing titanium or niobium containing MCM-41 has been developed. The mesoporous materials were synthesized at room temperature using tetraethoxysilane (TEOS), cetyltrimethylammonium bromide (CTMABr) as template and (NH4)(2)TiF6 or NH4[NbO(C2O4)(2)(H2O)(2)].(H2O)(3) as metal source. The materials were characterized by X-ray diffraction (XRD),FT-IR and diffuse reflectance UV-Vis spectroscopies, which showed that most of the metal was incorporated into the framework of MCM-41. Ti and Nb containing MCM-41 were tested in the solvent-free epoxidation of cis-cyclooctene using tert-butyl hydroperoxide as oxidant and a catalyst: cyclooctene molar ratio of 1:1000. After 24h of reaction using Ti-MCM-41 and Nb-MCM-41 as catalyst, we obtained 82 and 65% yields of cyclooctene oxide, respectively, without formation of any by-products. (C) 2004 Elsevier B.V. All rights reserved.
dc.description266
dc.description2
dc.description223
dc.description227
dc.languageen
dc.publisherElsevier Science Bv
dc.publisherAmsterdam
dc.publisherHolanda
dc.relationApplied Catalysis A-general
dc.relationAppl. Catal. A-Gen.
dc.rightsfechado
dc.rightshttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dc.sourceWeb of Science
dc.subjectepoxidation
dc.subjectTi-MCM-41
dc.subjectNb-MCM-41
dc.subjecttert-butyl hydroperoxide
dc.subjectcyclooctene
dc.subjectNiobium Oxide Catalysts
dc.subjectMolecular-sieves
dc.subjectContaining Mcm-41
dc.subjectMesoporous Materials
dc.subjectSelective Oxidation
dc.subjectDehydrogenation
dc.subjectPerformance
dc.subjectSilica
dc.titleCyclooctene epoxidation using Nb-MCM-41 and Ti-MCM-41 synthesized at room temperature
dc.typeArtículos de revistas


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