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

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dc.contributor.authorFajardo, Humberto Vieira
dc.contributor.authorLongo, Elson
dc.contributor.authorLeite, Edson Roberto
dc.contributor.authorLibanori, Rafael
dc.date.accessioned2015-04-09T11:02:47Z
dc.date.available2015-04-09T11:02:47Z
dc.date.issued2012
dc.description.abstractIn 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.pt_BR
dc.identifier.citationFAJARDO, H. V. et al. Synthesis, characterization and catalytic properties of nanocrystaline Y2O3-coated TiO2 in the ethanol dehydration reaction. Materials Research, São Carlos, v. 15, p. 285-290, 2012. Disponível em: <http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392012000200018&lng=pt&nrm=iso&tlng=pt>. Acesso em: 02 fev. 2015.pt_BR
dc.identifier.doihttp://dx.doi.org/10.1590/S1516-14392012005000023
dc.identifier.issn1516-1439
dc.identifier.urihttp://www.repositorio.ufop.br/handle/123456789/4987
dc.language.isoen_USpt_BR
dc.rights.licenseO periódico Materials Research dá permissão ao RI/UFOP para depositar uma cópia eletrônica dos artigos publicados por esse periódico em que ao menos um dos autores é aluno ou professor da UFOP. Contato via e-mail em 25 out. 2013.pt_BR
dc.subjectCatalysispt_BR
dc.subjectSurface modificationspt_BR
dc.subjectTitaniapt_BR
dc.subjectCoatingpt_BR
dc.titleSynthesis, characterization and catalytic properties of nanocrystaline Y2O3-coated TiO2 in the ethanol dehydration reaction.pt_BR
dc.typeArtigo publicado em periodicopt_BR
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