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dc.contributor.authorAlmeida, Karina Arruda
dc.contributor.authorMartins, Leandro [UNESP]
dc.contributor.authorCardoso, Dilson
dc.date.accessioned2015-05-13T16:35:43Z
dc.date.available2015-05-13T16:35:43Z
dc.date.issued2010
dc.identifierhttp://dx.doi.org/10.1590/S0100-40422010000500013
dc.identifier.citationQuímica Nova. Sociedade Brasileira de Química, v. 33, n. 5, p. 1077-1081, 2010.
dc.identifier.issn0100-4042
dc.identifier.urihttp://hdl.handle.net/11449/122926
dc.description.abstractSodium faujasite zeolites with Si/Al ratio of 1.4 and 2.5 were exchanged with methylammonium cations. The influence of framework aluminum and ion exchange degree in their basic properties were evaluated. These properties were assessed in the Knoevenagel catalytic condensation. The sodium ion exchange was restricted to the supercavity and the exchange degree depended on the cation volume and on the Si/Al ratio. The higher catalytic activity is achieved for the zeolite with the lower Si/Al ratio exchanged with the monomethylammonium cation. The best performance of this catalyst is attributed to the higher basicity in combination with elevated micropore volume.en
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.format.extent1077-1081
dc.language.isopor
dc.publisherSociedade Brasileira de Química
dc.relation.ispartofQuímica Nova
dc.sourceSciELO
dc.subjectfaujasite zeólitasen
dc.subjectbasic catalysten
dc.subjectmethylammonium cationsen
dc.titlePreparação e propriedades de zeólitas faujasita contendo cátions amôniopt
dc.title.alternativePreparation and properties of faujasite zeolites containing ammonium cationsen
dc.typeArtigo
dc.contributor.institutionUniversidade Federal de São Carlos Departamento de Engenharia Química
dc.description.affiliationUniversidade Federal de São Carlos Departamento de Engenharia Química
dc.identifier.doi10.1590/S0100-40422010000500013
dc.identifier.scieloS0100-40422010000500013
dc.rights.accessRightsAcesso aberto
unesp.campusUniversidade Estadual Paulista (UNESP), Instituto de Química, Araraquarapt
dc.identifier.fileS0100-40422010000500013.pdf
dc.identifier.lattes5782696565602340
unesp.author.lattes5782696565602340
dc.relation.ispartofjcr0.646
dc.relation.ispartofsjr0,255
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