Magnetic Fe3O4SiO2–Pt and Fe3O4SiO2–PtSiO2 structures for HDN of indole

Autores
Dinamarca, Robinson; Vallés, Verónica Alejandra; Ledesma, Brenda Cecilia; Campos, Cristian H.; Pechci, Gina
Año de publicación
2019
Idioma
inglés
Tipo de recurso
artículo
Estado
versión borrador
Descripción
The effect of a second porous SiO2 shell in the activity and selectivity of the Fe3O4@SiO2–Pt catalyst in the hydrodenitrogenation of indole is reported. The double Fe3O4@SiO2–Pt@SiO2 structure was prepared by coating Fe3O4 nanoparticles with tetraethyl orthosilicate (TEOS) with a further impregnation of 1.0 wt.% of Pt on the (3-aminopropyl)triethoxysilane functionalized Fe3O4@SiO2 structures. The second porous SiO2 shell, obtained by using a hexadecyltrimethylammonium bromide (CTAB) template, covered the Fe3O4@SiO2–Pt catalyst with a well-defined and narrow pore-sized distribution. The full characterization by TEM, inductively coupled plasma-optical emission spectroscopy (ICP-OES), XRD, and N2 adsorption isotherm at 77 K and vibrating sample magnetometry (VSM) of the catalysts indicates homogeneous core@shell structures with a controlled nano-size of metallic Pt. A significant effect of the double SiO2 shell in the catalytic performance was demonstrated by both a higher activity to eliminate the nitrogen atom of the indole molecule present in model liquid fuel and the improvement of the catalytic stability reaching four consecutive reaction cycles with only a slight conversion level decrease.
Fil: Dinamarca, Robinson. Universidad de Concepción. Facultad de Ciencias Químicas. Concepción; Chile.
Fil: Vallés, Verónica Alejandra. Universidad Tecnológica Nacional. Facultad Regional Córdoba. Centro de Investigación en Nanociencia y Nanotecnología. Córdoba; Argentina.
Fil: Ledesma, Brenda Cecilia. Universidad Tecnológica Nacional. Facultad Regional Córdoba. Centro de Investigación en Nanociencia y Nanotecnología. Córdoba; Argentina.
Fil: Campos, Cristian H.. Universidad de Concepción. Facultad de Ciencias Químicas. Concepción; Chile.
Fil: Pechci, Gina. Universidad de Concepción. Facultad de Ciencias Químicas. Concepción; Chile.
Peer Reviewed
Materia
coreshell
platinum
mesoporous materials
indole HDN
Nivel de accesibilidad
acceso abierto
Condiciones de uso
2024-04-15T23:16:08Z
Repositorio
Repositorio Institucional Abierto (UTN)
Institución
Universidad Tecnológica Nacional
OAI Identificador
oai:ria.utn.edu.ar:20.500.12272/10528
Acceder
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network_acronym_str RIAUTN
repository_id_str a
network_name_str Repositorio Institucional Abierto (UTN)
spelling Magnetic Fe3O4SiO2–Pt and Fe3O4SiO2–PtSiO2 structures for HDN of indoleDinamarca, RobinsonVallés, Verónica AlejandraLedesma, Brenda CeciliaCampos, Cristian H.Pechci, Ginacoreshellplatinummesoporous materialsindole HDNThe effect of a second porous SiO2 shell in the activity and selectivity of the Fe3O4@SiO2–Pt catalyst in the hydrodenitrogenation of indole is reported. The double Fe3O4@SiO2–Pt@SiO2 structure was prepared by coating Fe3O4 nanoparticles with tetraethyl orthosilicate (TEOS) with a further impregnation of 1.0 wt.% of Pt on the (3-aminopropyl)triethoxysilane functionalized Fe3O4@SiO2 structures. The second porous SiO2 shell, obtained by using a hexadecyltrimethylammonium bromide (CTAB) template, covered the Fe3O4@SiO2–Pt catalyst with a well-defined and narrow pore-sized distribution. The full characterization by TEM, inductively coupled plasma-optical emission spectroscopy (ICP-OES), XRD, and N2 adsorption isotherm at 77 K and vibrating sample magnetometry (VSM) of the catalysts indicates homogeneous core@shell structures with a controlled nano-size of metallic Pt. A significant effect of the double SiO2 shell in the catalytic performance was demonstrated by both a higher activity to eliminate the nitrogen atom of the indole molecule present in model liquid fuel and the improvement of the catalytic stability reaching four consecutive reaction cycles with only a slight conversion level decrease.Fil: Dinamarca, Robinson. Universidad de Concepción. Facultad de Ciencias Químicas. Concepción; Chile.Fil: Vallés, Verónica Alejandra. Universidad Tecnológica Nacional. Facultad Regional Córdoba. Centro de Investigación en Nanociencia y Nanotecnología. Córdoba; Argentina.Fil: Ledesma, Brenda Cecilia. Universidad Tecnológica Nacional. Facultad Regional Córdoba. Centro de Investigación en Nanociencia y Nanotecnología. Córdoba; Argentina.Fil: Campos, Cristian H.. Universidad de Concepción. Facultad de Ciencias Químicas. Concepción; Chile.Fil: Pechci, Gina. Universidad de Concepción. Facultad de Ciencias Químicas. Concepción; Chile.Peer Reviewed2024-04-15T23:16:08Z2024-04-15T23:16:08Z2019info:eu-repo/semantics/articleinfo:eu-repo/semantics/drafthttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articulopdfapplication/pdfhttp://hdl.handle.net/20.500.12272/10528-engenginfo:eu-repo/semantics/openAccess2024-04-15T23:16:08Zhttp://creativecommons.org/licenses/by-nc-nd/4.0/Attribution-NonCommercial-NoDerivatives 4.0 InternacionalVallés, Verónica Alejandrahttps://creativecommons.org/licenses/by-nc-sa/4.0/reponame:Repositorio Institucional Abierto (UTN)instname:Universidad Tecnológica Nacional2026-09-24T12:45:46Zoai:ria.utn.edu.ar:20.500.12272/10528instacron:UTNInstitucionalhttp://ria.utn.edu.ar/Universidad públicaNo correspondehttp://ria.utn.edu.ar/oaigestionria@rec.utn.edu.ar; fsuarez@rec.utn.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:a2026-09-24 12:45:48.423Repositorio Institucional Abierto (UTN) - Universidad Tecnológica Nacionalfalse
dc.title.none.fl_str_mv Magnetic Fe3O4SiO2–Pt and Fe3O4SiO2–PtSiO2 structures for HDN of indole
title Magnetic Fe3O4SiO2–Pt and Fe3O4SiO2–PtSiO2 structures for HDN of indole
spellingShingle Magnetic Fe3O4SiO2–Pt and Fe3O4SiO2–PtSiO2 structures for HDN of indole
Dinamarca, Robinson
coreshell
platinum
mesoporous materials
indole HDN
title_short Magnetic Fe3O4SiO2–Pt and Fe3O4SiO2–PtSiO2 structures for HDN of indole
title_full Magnetic Fe3O4SiO2–Pt and Fe3O4SiO2–PtSiO2 structures for HDN of indole
title_fullStr Magnetic Fe3O4SiO2–Pt and Fe3O4SiO2–PtSiO2 structures for HDN of indole
title_full_unstemmed Magnetic Fe3O4SiO2–Pt and Fe3O4SiO2–PtSiO2 structures for HDN of indole
title_sort Magnetic Fe3O4SiO2–Pt and Fe3O4SiO2–PtSiO2 structures for HDN of indole
dc.creator.none.fl_str_mv Dinamarca, Robinson
Vallés, Verónica Alejandra
Ledesma, Brenda Cecilia
Campos, Cristian H.
Pechci, Gina
author Dinamarca, Robinson
author_facet Dinamarca, Robinson
Vallés, Verónica Alejandra
Ledesma, Brenda Cecilia
Campos, Cristian H.
Pechci, Gina
author_role author
author2 Vallés, Verónica Alejandra
Ledesma, Brenda Cecilia
Campos, Cristian H.
Pechci, Gina
author2_role author
author
author
author
dc.subject.none.fl_str_mv coreshell
platinum
mesoporous materials
indole HDN
topic coreshell
platinum
mesoporous materials
indole HDN
dc.description.none.fl_txt_mv The effect of a second porous SiO2 shell in the activity and selectivity of the Fe3O4@SiO2–Pt catalyst in the hydrodenitrogenation of indole is reported. The double Fe3O4@SiO2–Pt@SiO2 structure was prepared by coating Fe3O4 nanoparticles with tetraethyl orthosilicate (TEOS) with a further impregnation of 1.0 wt.% of Pt on the (3-aminopropyl)triethoxysilane functionalized Fe3O4@SiO2 structures. The second porous SiO2 shell, obtained by using a hexadecyltrimethylammonium bromide (CTAB) template, covered the Fe3O4@SiO2–Pt catalyst with a well-defined and narrow pore-sized distribution. The full characterization by TEM, inductively coupled plasma-optical emission spectroscopy (ICP-OES), XRD, and N2 adsorption isotherm at 77 K and vibrating sample magnetometry (VSM) of the catalysts indicates homogeneous core@shell structures with a controlled nano-size of metallic Pt. A significant effect of the double SiO2 shell in the catalytic performance was demonstrated by both a higher activity to eliminate the nitrogen atom of the indole molecule present in model liquid fuel and the improvement of the catalytic stability reaching four consecutive reaction cycles with only a slight conversion level decrease.
Fil: Dinamarca, Robinson. Universidad de Concepción. Facultad de Ciencias Químicas. Concepción; Chile.
Fil: Vallés, Verónica Alejandra. Universidad Tecnológica Nacional. Facultad Regional Córdoba. Centro de Investigación en Nanociencia y Nanotecnología. Córdoba; Argentina.
Fil: Ledesma, Brenda Cecilia. Universidad Tecnológica Nacional. Facultad Regional Córdoba. Centro de Investigación en Nanociencia y Nanotecnología. Córdoba; Argentina.
Fil: Campos, Cristian H.. Universidad de Concepción. Facultad de Ciencias Químicas. Concepción; Chile.
Fil: Pechci, Gina. Universidad de Concepción. Facultad de Ciencias Químicas. Concepción; Chile.
Peer Reviewed
description The effect of a second porous SiO2 shell in the activity and selectivity of the Fe3O4@SiO2–Pt catalyst in the hydrodenitrogenation of indole is reported. The double Fe3O4@SiO2–Pt@SiO2 structure was prepared by coating Fe3O4 nanoparticles with tetraethyl orthosilicate (TEOS) with a further impregnation of 1.0 wt.% of Pt on the (3-aminopropyl)triethoxysilane functionalized Fe3O4@SiO2 structures. The second porous SiO2 shell, obtained by using a hexadecyltrimethylammonium bromide (CTAB) template, covered the Fe3O4@SiO2–Pt catalyst with a well-defined and narrow pore-sized distribution. The full characterization by TEM, inductively coupled plasma-optical emission spectroscopy (ICP-OES), XRD, and N2 adsorption isotherm at 77 K and vibrating sample magnetometry (VSM) of the catalysts indicates homogeneous core@shell structures with a controlled nano-size of metallic Pt. A significant effect of the double SiO2 shell in the catalytic performance was demonstrated by both a higher activity to eliminate the nitrogen atom of the indole molecule present in model liquid fuel and the improvement of the catalytic stability reaching four consecutive reaction cycles with only a slight conversion level decrease.
publishDate 2019
dc.date.none.fl_str_mv 2019
2024-04-15T23:16:08Z
2024-04-15T23:16:08Z
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/draft
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str draft
dc.identifier.none.fl_str_mv http://hdl.handle.net/20.500.12272/10528
-
url http://hdl.handle.net/20.500.12272/10528
identifier_str_mv -
dc.language.none.fl_str_mv eng
eng
language eng
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
2024-04-15T23:16:08Z
http://creativecommons.org/licenses/by-nc-nd/4.0/
Attribution-NonCommercial-NoDerivatives 4.0 Internacional
Vallés, Verónica Alejandra
https://creativecommons.org/licenses/by-nc-sa/4.0/
eu_rights_str_mv openAccess
rights_invalid_str_mv 2024-04-15T23:16:08Z
http://creativecommons.org/licenses/by-nc-nd/4.0/
Attribution-NonCommercial-NoDerivatives 4.0 Internacional
Vallés, Verónica Alejandra
https://creativecommons.org/licenses/by-nc-sa/4.0/
dc.format.none.fl_str_mv pdf
application/pdf
dc.source.none.fl_str_mv reponame:Repositorio Institucional Abierto (UTN)
instname:Universidad Tecnológica Nacional
reponame_str Repositorio Institucional Abierto (UTN)
collection Repositorio Institucional Abierto (UTN)
instname_str Universidad Tecnológica Nacional
repository.name.fl_str_mv Repositorio Institucional Abierto (UTN) - Universidad Tecnológica Nacional
repository.mail.fl_str_mv gestionria@rec.utn.edu.ar; fsuarez@rec.utn.edu.ar
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score 13.24418

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