Synthesis, characterization and catalytic properties of nanocrystaline Y2O3-coated TiO2 in the ethanol dehydration reaction

dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorFajardo, Humberto Vieira
dc.creatorLongo, Elson
dc.creatorLeite, Edson Roberto
dc.creatorLibanori, Rafael
dc.creatorProbst, Luiz Fernando Dias
dc.creatorCarreño, Neftalí Lenin Villarreal
dc.date2014-05-20T15:17:44Z
dc.date2016-10-25T17:51:34Z
dc.date2014-05-20T15:17:44Z
dc.date2016-10-25T17:51:34Z
dc.date2012-04-01
dc.date.accessioned2017-04-05T23:17:18Z
dc.date.available2017-04-05T23:17:18Z
dc.identifierMaterials Research. ABM, ABC, ABPol, v. 15, n. 2, p. 285-290, 2012.
dc.identifier1516-1439
dc.identifierhttp://hdl.handle.net/11449/30590
dc.identifierhttp://acervodigital.unesp.br/handle/11449/30590
dc.identifier10.1590/S1516-14392012005000023
dc.identifierS1516-14392012000200018
dc.identifierWOS:000305716000018
dc.identifierS1516-14392012000200018.pdf
dc.identifierhttp://dx.doi.org/10.1590/S1516-14392012005000023
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/875256
dc.descriptionIn the present study, TiO2 nanopowder was partially coated with Y2O3 precursors generated by a sol-gel modified route. The system of nanocoated particles formed an ultra thin structure on the TiO2 surfaces. The modified nanoparticles were characterized by high resolution transmission electron microscopy (HR-TEM), X-ray diffraction (XRD) analysis, Zeta potential and surface area through N2 fisisorption measurements. Bioethanol dehydration was used as a probe reaction to investigate the modifications on the nanoparticles surface. The process led to the obtainment of nanoparticles with important surface characteristics and catalytic behavior in the bioethanol dehydration reaction, with improved activity and particular selectivity in comparison to their non-coated analogs. The ethylene production was disfavored and selectivity toward acetaldehyde, hydrogen and ethane increased over modified nanoparticles.
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.languageeng
dc.publisherABM, ABC, ABPol
dc.relationMaterials Research
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectcatalysis
dc.subjectsurface modifications
dc.subjecttitania
dc.subjectcoating
dc.titleSynthesis, characterization and catalytic properties of nanocrystaline Y2O3-coated TiO2 in the ethanol dehydration reaction
dc.typeOtro


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