Superficial effects and catalytic activity of ZrO2–SO42− as a function of the crystal structure

Autores
Miranda M., Cristian David; Ramírez, Alfonso E.; Gaona Jurado, Sonia; Vera, Carlos Roman
Año de publicación
2014
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
As assessment was made of the influence of the crystal structure on the activity of SO42−–ZrO2 catalysts for the acid-catalyzed reactions of sucrose inversion and the esterification of fatty acids with glycerol. Purely monoclinic or purely tetragonal SO42−–ZrO2 catalysts were synthesized by sulfation with 1 M sulfuric acid of different ZrO2 starting materials of defined crystal phase. The final catalysts were obtained by calcination at 400 °C, a relatively mild temperature for this kind of materials. Structural and morphological characterization tests showed that the crystal phase of zirconia had an influence on the properties of the sulfated zirconia catalysts. Monoclinic and tetragonal catalysts had different acidities and also different levels of activity in the reactions. Better results in the sucrose inversion tests were obtained using tetragonal phase catalysts while monoclinic phase materials were better catalysts for glycerol esterification. The catalysts were further characterized by Fourier transform infrared spectroscopy (FT-IR), X-ray powder diffraction (XRD), transmission electron microscope (TEM), X-ray photoelectron spectroscopy (XPS) and nitrogen physisorption. The acidity was measured by amine titration using Hammett indicators and FT-IR absorption of adsorbed pyridine.
Fil: Miranda M., Cristian David. Universidad del Cauca; Colombia
Fil: Ramírez, Alfonso E.. Universidad del Cauca; Colombia
Fil: Gaona Jurado, Sonia. Universidad del Cauca; Colombia
Fil: Vera, Carlos Roman. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica ; Argentina
Materia
Zirconium Oxide
Sulfated Zirconia
Sucrose Inversion
Acid Catalysis
Glycerol Esterification
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/31605
Acceder
id CONICETDig_5072c92e224b484c504168138e4c93d1
oai_identifier_str oai:ri.conicet.gov.ar:11336/31605
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Superficial effects and catalytic activity of ZrO2–SO42− as a function of the crystal structureMiranda M., Cristian DavidRamírez, Alfonso E.Gaona Jurado, SoniaVera, Carlos RomanZirconium OxideSulfated ZirconiaSucrose InversionAcid CatalysisGlycerol Esterificationhttps://purl.org/becyt/ford/2.4https://purl.org/becyt/ford/2As assessment was made of the influence of the crystal structure on the activity of SO42−–ZrO2 catalysts for the acid-catalyzed reactions of sucrose inversion and the esterification of fatty acids with glycerol. Purely monoclinic or purely tetragonal SO42−–ZrO2 catalysts were synthesized by sulfation with 1 M sulfuric acid of different ZrO2 starting materials of defined crystal phase. The final catalysts were obtained by calcination at 400 °C, a relatively mild temperature for this kind of materials. Structural and morphological characterization tests showed that the crystal phase of zirconia had an influence on the properties of the sulfated zirconia catalysts. Monoclinic and tetragonal catalysts had different acidities and also different levels of activity in the reactions. Better results in the sucrose inversion tests were obtained using tetragonal phase catalysts while monoclinic phase materials were better catalysts for glycerol esterification. The catalysts were further characterized by Fourier transform infrared spectroscopy (FT-IR), X-ray powder diffraction (XRD), transmission electron microscope (TEM), X-ray photoelectron spectroscopy (XPS) and nitrogen physisorption. The acidity was measured by amine titration using Hammett indicators and FT-IR absorption of adsorbed pyridine.Fil: Miranda M., Cristian David. Universidad del Cauca; ColombiaFil: Ramírez, Alfonso E.. Universidad del Cauca; ColombiaFil: Gaona Jurado, Sonia. Universidad del Cauca; ColombiaFil: Vera, Carlos Roman. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica ; ArgentinaElsevier2014-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/31605Ramírez, Alfonso E.; Gaona Jurado, Sonia; Miranda M., Cristian David; Vera, Carlos Roman; Superficial effects and catalytic activity of ZrO2–SO42− as a function of the crystal structure; Elsevier; Journal of Molecular Catalysis A: Chemical; 398; 12-2014; 325-3351381-1169CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S1381116914005755info:eu-repo/semantics/altIdentifier/doi/10.1016/j.molcata.2014.12.015info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T12:03:43Zoai:ri.conicet.gov.ar:11336/31605instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-22 12:03:43.233CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Superficial effects and catalytic activity of ZrO2–SO42− as a function of the crystal structure
title Superficial effects and catalytic activity of ZrO2–SO42− as a function of the crystal structure
spellingShingle Superficial effects and catalytic activity of ZrO2–SO42− as a function of the crystal structure
Miranda M., Cristian David
Zirconium Oxide
Sulfated Zirconia
Sucrose Inversion
Acid Catalysis
Glycerol Esterification
title_short Superficial effects and catalytic activity of ZrO2–SO42− as a function of the crystal structure
title_full Superficial effects and catalytic activity of ZrO2–SO42− as a function of the crystal structure
title_fullStr Superficial effects and catalytic activity of ZrO2–SO42− as a function of the crystal structure
title_full_unstemmed Superficial effects and catalytic activity of ZrO2–SO42− as a function of the crystal structure
title_sort Superficial effects and catalytic activity of ZrO2–SO42− as a function of the crystal structure
dc.creator.none.fl_str_mv Miranda M., Cristian David
Ramírez, Alfonso E.
Gaona Jurado, Sonia
Vera, Carlos Roman
author Miranda M., Cristian David
author_facet Miranda M., Cristian David
Ramírez, Alfonso E.
Gaona Jurado, Sonia
Vera, Carlos Roman
author_role author
author2 Ramírez, Alfonso E.
Gaona Jurado, Sonia
Vera, Carlos Roman
author2_role author
author
author
dc.subject.none.fl_str_mv Zirconium Oxide
Sulfated Zirconia
Sucrose Inversion
Acid Catalysis
Glycerol Esterification
topic Zirconium Oxide
Sulfated Zirconia
Sucrose Inversion
Acid Catalysis
Glycerol Esterification
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.4
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv As assessment was made of the influence of the crystal structure on the activity of SO42−–ZrO2 catalysts for the acid-catalyzed reactions of sucrose inversion and the esterification of fatty acids with glycerol. Purely monoclinic or purely tetragonal SO42−–ZrO2 catalysts were synthesized by sulfation with 1 M sulfuric acid of different ZrO2 starting materials of defined crystal phase. The final catalysts were obtained by calcination at 400 °C, a relatively mild temperature for this kind of materials. Structural and morphological characterization tests showed that the crystal phase of zirconia had an influence on the properties of the sulfated zirconia catalysts. Monoclinic and tetragonal catalysts had different acidities and also different levels of activity in the reactions. Better results in the sucrose inversion tests were obtained using tetragonal phase catalysts while monoclinic phase materials were better catalysts for glycerol esterification. The catalysts were further characterized by Fourier transform infrared spectroscopy (FT-IR), X-ray powder diffraction (XRD), transmission electron microscope (TEM), X-ray photoelectron spectroscopy (XPS) and nitrogen physisorption. The acidity was measured by amine titration using Hammett indicators and FT-IR absorption of adsorbed pyridine.
Fil: Miranda M., Cristian David. Universidad del Cauca; Colombia
Fil: Ramírez, Alfonso E.. Universidad del Cauca; Colombia
Fil: Gaona Jurado, Sonia. Universidad del Cauca; Colombia
Fil: Vera, Carlos Roman. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica ; Argentina
description As assessment was made of the influence of the crystal structure on the activity of SO42−–ZrO2 catalysts for the acid-catalyzed reactions of sucrose inversion and the esterification of fatty acids with glycerol. Purely monoclinic or purely tetragonal SO42−–ZrO2 catalysts were synthesized by sulfation with 1 M sulfuric acid of different ZrO2 starting materials of defined crystal phase. The final catalysts were obtained by calcination at 400 °C, a relatively mild temperature for this kind of materials. Structural and morphological characterization tests showed that the crystal phase of zirconia had an influence on the properties of the sulfated zirconia catalysts. Monoclinic and tetragonal catalysts had different acidities and also different levels of activity in the reactions. Better results in the sucrose inversion tests were obtained using tetragonal phase catalysts while monoclinic phase materials were better catalysts for glycerol esterification. The catalysts were further characterized by Fourier transform infrared spectroscopy (FT-IR), X-ray powder diffraction (XRD), transmission electron microscope (TEM), X-ray photoelectron spectroscopy (XPS) and nitrogen physisorption. The acidity was measured by amine titration using Hammett indicators and FT-IR absorption of adsorbed pyridine.
publishDate 2014
dc.date.none.fl_str_mv 2014-12
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/31605
Ramírez, Alfonso E.; Gaona Jurado, Sonia; Miranda M., Cristian David; Vera, Carlos Roman; Superficial effects and catalytic activity of ZrO2–SO42− as a function of the crystal structure; Elsevier; Journal of Molecular Catalysis A: Chemical; 398; 12-2014; 325-335
1381-1169
CONICET Digital
CONICET
url http://hdl.handle.net/11336/31605
identifier_str_mv Ramírez, Alfonso E.; Gaona Jurado, Sonia; Miranda M., Cristian David; Vera, Carlos Roman; Superficial effects and catalytic activity of ZrO2–SO42− as a function of the crystal structure; Elsevier; Journal of Molecular Catalysis A: Chemical; 398; 12-2014; 325-335
1381-1169
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S1381116914005755
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.molcata.2014.12.015
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
_version_ 1846782380718686208
score 12.982451

Publicaciones similares