Hydrodenitrogenation of indol using iridium catalyst supported on titanium nanotubes

Autores
Ledesma, Brenda Cecilia; Martínez, María Laura; Gómez Costa, Marcos Bruno; Beltramone, Andrea Raquel
Año de publicación
2022
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The HDN of indole was studied over iridium modified titanate nanotube catalyst. Titaniun nanotube was prepared by the alkaline hydrothermal method. Iridium was added by wetness impregnation. The activity was compared with Ir-TiO2 and commercial NiMo/Al2O3 catalysts. The catalysts prepared were characterized by X-ray diffraction (XRD), N2 adsorption isotherms, UV–Vis-DRS, XPS, TEM, Py- FTIR and H2-Chemisorption. XRD, N2 isotherms and UV–vis-DRS confirmed the nanotube structure. The analysis showed that the mesoporous structure was maintained after Ir incorporation. The results showed that titanate nanotube as support significantly reduce the size of iridium crystallites and improves its dispersion considerably. Iridium titanate nanotube presented abundant and strong Bronsted acidity compared with TiO2 iridium catalyst. Ir-TNT was the most active catalyst for indole HDN, in mild conditions in a Batch reactor. The Bronsted acidity in synergic effect with Lewis acidity and hydrogenolysis capacity of iridium species were the responsible for the good activity.The HDN of indole was studied over iridium modified titanate nanotube catalyst. Titaniun nanotube was prepared by the alkaline hydrothermal method. Iridium was added by wetness impregnation. The activity was compared with Ir-TiO2 and commercial NiMo/Al2O3 catalysts. The catalysts prepared were characterized by X-ray diffraction (XRD), N2 adsorption isotherms, UV–Vis-DRS, XPS, TEM, Py- FTIR and H2-Chemisorption. XRD, N2 isotherms and UV–vis-DRS confirmed the nanotube structure. The analysis showed that the mesoporous structure was maintained after Ir incorporation. The results showed that titanate nanotube as support significantly reduce the size of iridium crystallites and improves its dispersion considerably. Iridium titanate nanotube presented abundant and strong Bronsted acidity compared with TiO2 iridium catalyst. Ir-TNT was the most active catalyst for indole HDN, in mild conditions in a Batch reactor. The Bronsted acidity in synergic effect with Lewis acidity and hydrogenolysis capacity of iridium species were the responsible for the good activity.
Fil: Ledesma, Brenda Cecilia. Universidad Tecnológica Nacional. Facultad Regional Córdoba. Centro de Investigación en Nanociencia y Nanotecnología. Córdoba; Argentina.
Fil: Martínez, María Laura. Universidad Tecnológica Nacional. Facultad Regional Córdoba. Centro de Investigación en Nanociencia y Nanotecnología. Córdoba; Argentina.
Fil: Gómez Costa, Marcos B.. Universidad Tecnológica Nacional. Facultad Regional Córdoba. Centro de Investigación en Nanociencia y Nanotecnología. Córdoba; Argentina.
Fil: Beltramone, Andrea R.. Universidad Tecnológica Nacional. Facultad Regional Córdoba. Centro de Investigación en Nanociencia y Nanotecnología. Córdoba; Argentina.
Peer Reviewed
Materia
Hydrodenitrogenation
clean fuel
nanotube
Nivel de accesibilidad
acceso abierto
Condiciones de uso
2024-04-17T20:01:17Z
Repositorio
Repositorio Institucional Abierto (UTN)
Institución
Universidad Tecnológica Nacional
OAI Identificador
oai:ria.utn.edu.ar:20.500.12272/10568
Acceder
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oai_identifier_str oai:ria.utn.edu.ar:20.500.12272/10568
network_acronym_str RIAUTN
repository_id_str a
network_name_str Repositorio Institucional Abierto (UTN)
spelling Hydrodenitrogenation of indol using iridium catalyst supported on titanium nanotubesLedesma, Brenda CeciliaMartínez, María LauraGómez Costa, Marcos BrunoBeltramone, Andrea RaquelHydrodenitrogenationclean fuelnanotubeThe HDN of indole was studied over iridium modified titanate nanotube catalyst. Titaniun nanotube was prepared by the alkaline hydrothermal method. Iridium was added by wetness impregnation. The activity was compared with Ir-TiO2 and commercial NiMo/Al2O3 catalysts. The catalysts prepared were characterized by X-ray diffraction (XRD), N2 adsorption isotherms, UV–Vis-DRS, XPS, TEM, Py- FTIR and H2-Chemisorption. XRD, N2 isotherms and UV–vis-DRS confirmed the nanotube structure. The analysis showed that the mesoporous structure was maintained after Ir incorporation. The results showed that titanate nanotube as support significantly reduce the size of iridium crystallites and improves its dispersion considerably. Iridium titanate nanotube presented abundant and strong Bronsted acidity compared with TiO2 iridium catalyst. Ir-TNT was the most active catalyst for indole HDN, in mild conditions in a Batch reactor. The Bronsted acidity in synergic effect with Lewis acidity and hydrogenolysis capacity of iridium species were the responsible for the good activity.The HDN of indole was studied over iridium modified titanate nanotube catalyst. Titaniun nanotube was prepared by the alkaline hydrothermal method. Iridium was added by wetness impregnation. The activity was compared with Ir-TiO2 and commercial NiMo/Al2O3 catalysts. The catalysts prepared were characterized by X-ray diffraction (XRD), N2 adsorption isotherms, UV–Vis-DRS, XPS, TEM, Py- FTIR and H2-Chemisorption. XRD, N2 isotherms and UV–vis-DRS confirmed the nanotube structure. The analysis showed that the mesoporous structure was maintained after Ir incorporation. The results showed that titanate nanotube as support significantly reduce the size of iridium crystallites and improves its dispersion considerably. Iridium titanate nanotube presented abundant and strong Bronsted acidity compared with TiO2 iridium catalyst. Ir-TNT was the most active catalyst for indole HDN, in mild conditions in a Batch reactor. The Bronsted acidity in synergic effect with Lewis acidity and hydrogenolysis capacity of iridium species were the responsible for the good activity.Fil: Ledesma, Brenda Cecilia. Universidad Tecnológica Nacional. Facultad Regional Córdoba. Centro de Investigación en Nanociencia y Nanotecnología. Córdoba; Argentina.Fil: Martínez, María Laura. Universidad Tecnológica Nacional. Facultad Regional Córdoba. Centro de Investigación en Nanociencia y Nanotecnología. Córdoba; Argentina.Fil: Gómez Costa, Marcos B.. Universidad Tecnológica Nacional. Facultad Regional Córdoba. Centro de Investigación en Nanociencia y Nanotecnología. Córdoba; Argentina.Fil: Beltramone, Andrea R.. Universidad Tecnológica Nacional. Facultad Regional Córdoba. Centro de Investigación en Nanociencia y Nanotecnología. Córdoba; Argentina.Peer Reviewed2024-04-17T20:01:17Z2024-04-17T20:01:17Z2022info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articulopdfapplication/pdfhttp://hdl.handle.net/20.500.12272/10568-enginfo:eu-repo/semantics/openAccess2024-04-17T20:01:17Zhttp://creativecommons.org/licenses/by-nc-nd/4.0/Attribution-NonCommercial-NoDerivatives 4.0 InternacionalLedesma, Brenda Ceciliahttps://creativecommons.org/licenses/by-nc-sa/4.0/reponame:Repositorio Institucional Abierto (UTN)instname:Universidad Tecnológica Nacional2026-09-24T12:47:33Zoai:ria.utn.edu.ar:20.500.12272/10568instacron: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 12:47:34.247Repositorio Institucional Abierto (UTN) - Universidad Tecnológica Nacionalfalse
dc.title.none.fl_str_mv Hydrodenitrogenation of indol using iridium catalyst supported on titanium nanotubes
title Hydrodenitrogenation of indol using iridium catalyst supported on titanium nanotubes
spellingShingle Hydrodenitrogenation of indol using iridium catalyst supported on titanium nanotubes
Ledesma, Brenda Cecilia
Hydrodenitrogenation
clean fuel
nanotube
title_short Hydrodenitrogenation of indol using iridium catalyst supported on titanium nanotubes
title_full Hydrodenitrogenation of indol using iridium catalyst supported on titanium nanotubes
title_fullStr Hydrodenitrogenation of indol using iridium catalyst supported on titanium nanotubes
title_full_unstemmed Hydrodenitrogenation of indol using iridium catalyst supported on titanium nanotubes
title_sort Hydrodenitrogenation of indol using iridium catalyst supported on titanium nanotubes
dc.creator.none.fl_str_mv Ledesma, Brenda Cecilia
Martínez, María Laura
Gómez Costa, Marcos Bruno
Beltramone, Andrea Raquel
author Ledesma, Brenda Cecilia
author_facet Ledesma, Brenda Cecilia
Martínez, María Laura
Gómez Costa, Marcos Bruno
Beltramone, Andrea Raquel
author_role author
author2 Martínez, María Laura
Gómez Costa, Marcos Bruno
Beltramone, Andrea Raquel
author2_role author
author
author
dc.subject.none.fl_str_mv Hydrodenitrogenation
clean fuel
nanotube
topic Hydrodenitrogenation
clean fuel
nanotube
dc.description.none.fl_txt_mv The HDN of indole was studied over iridium modified titanate nanotube catalyst. Titaniun nanotube was prepared by the alkaline hydrothermal method. Iridium was added by wetness impregnation. The activity was compared with Ir-TiO2 and commercial NiMo/Al2O3 catalysts. The catalysts prepared were characterized by X-ray diffraction (XRD), N2 adsorption isotherms, UV–Vis-DRS, XPS, TEM, Py- FTIR and H2-Chemisorption. XRD, N2 isotherms and UV–vis-DRS confirmed the nanotube structure. The analysis showed that the mesoporous structure was maintained after Ir incorporation. The results showed that titanate nanotube as support significantly reduce the size of iridium crystallites and improves its dispersion considerably. Iridium titanate nanotube presented abundant and strong Bronsted acidity compared with TiO2 iridium catalyst. Ir-TNT was the most active catalyst for indole HDN, in mild conditions in a Batch reactor. The Bronsted acidity in synergic effect with Lewis acidity and hydrogenolysis capacity of iridium species were the responsible for the good activity.The HDN of indole was studied over iridium modified titanate nanotube catalyst. Titaniun nanotube was prepared by the alkaline hydrothermal method. Iridium was added by wetness impregnation. The activity was compared with Ir-TiO2 and commercial NiMo/Al2O3 catalysts. The catalysts prepared were characterized by X-ray diffraction (XRD), N2 adsorption isotherms, UV–Vis-DRS, XPS, TEM, Py- FTIR and H2-Chemisorption. XRD, N2 isotherms and UV–vis-DRS confirmed the nanotube structure. The analysis showed that the mesoporous structure was maintained after Ir incorporation. The results showed that titanate nanotube as support significantly reduce the size of iridium crystallites and improves its dispersion considerably. Iridium titanate nanotube presented abundant and strong Bronsted acidity compared with TiO2 iridium catalyst. Ir-TNT was the most active catalyst for indole HDN, in mild conditions in a Batch reactor. The Bronsted acidity in synergic effect with Lewis acidity and hydrogenolysis capacity of iridium species were the responsible for the good activity.
Fil: Ledesma, Brenda Cecilia. Universidad Tecnológica Nacional. Facultad Regional Córdoba. Centro de Investigación en Nanociencia y Nanotecnología. Córdoba; Argentina.
Fil: Martínez, María Laura. Universidad Tecnológica Nacional. Facultad Regional Córdoba. Centro de Investigación en Nanociencia y Nanotecnología. Córdoba; Argentina.
Fil: Gómez Costa, Marcos B.. Universidad Tecnológica Nacional. Facultad Regional Córdoba. Centro de Investigación en Nanociencia y Nanotecnología. Córdoba; Argentina.
Fil: Beltramone, Andrea R.. Universidad Tecnológica Nacional. Facultad Regional Córdoba. Centro de Investigación en Nanociencia y Nanotecnología. Córdoba; Argentina.
Peer Reviewed
description The HDN of indole was studied over iridium modified titanate nanotube catalyst. Titaniun nanotube was prepared by the alkaline hydrothermal method. Iridium was added by wetness impregnation. The activity was compared with Ir-TiO2 and commercial NiMo/Al2O3 catalysts. The catalysts prepared were characterized by X-ray diffraction (XRD), N2 adsorption isotherms, UV–Vis-DRS, XPS, TEM, Py- FTIR and H2-Chemisorption. XRD, N2 isotherms and UV–vis-DRS confirmed the nanotube structure. The analysis showed that the mesoporous structure was maintained after Ir incorporation. The results showed that titanate nanotube as support significantly reduce the size of iridium crystallites and improves its dispersion considerably. Iridium titanate nanotube presented abundant and strong Bronsted acidity compared with TiO2 iridium catalyst. Ir-TNT was the most active catalyst for indole HDN, in mild conditions in a Batch reactor. The Bronsted acidity in synergic effect with Lewis acidity and hydrogenolysis capacity of iridium species were the responsible for the good activity.The HDN of indole was studied over iridium modified titanate nanotube catalyst. Titaniun nanotube was prepared by the alkaline hydrothermal method. Iridium was added by wetness impregnation. The activity was compared with Ir-TiO2 and commercial NiMo/Al2O3 catalysts. The catalysts prepared were characterized by X-ray diffraction (XRD), N2 adsorption isotherms, UV–Vis-DRS, XPS, TEM, Py- FTIR and H2-Chemisorption. XRD, N2 isotherms and UV–vis-DRS confirmed the nanotube structure. The analysis showed that the mesoporous structure was maintained after Ir incorporation. The results showed that titanate nanotube as support significantly reduce the size of iridium crystallites and improves its dispersion considerably. Iridium titanate nanotube presented abundant and strong Bronsted acidity compared with TiO2 iridium catalyst. Ir-TNT was the most active catalyst for indole HDN, in mild conditions in a Batch reactor. The Bronsted acidity in synergic effect with Lewis acidity and hydrogenolysis capacity of iridium species were the responsible for the good activity.
publishDate 2022
dc.date.none.fl_str_mv 2022
2024-04-17T20:01:17Z
2024-04-17T20:01:17Z
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/20.500.12272/10568
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url http://hdl.handle.net/20.500.12272/10568
identifier_str_mv -
dc.language.none.fl_str_mv eng
language eng
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
2024-04-17T20:01:17Z
http://creativecommons.org/licenses/by-nc-nd/4.0/
Attribution-NonCommercial-NoDerivatives 4.0 Internacional
Ledesma, Brenda Cecilia
https://creativecommons.org/licenses/by-nc-sa/4.0/
eu_rights_str_mv openAccess
rights_invalid_str_mv 2024-04-17T20:01:17Z
http://creativecommons.org/licenses/by-nc-nd/4.0/
Attribution-NonCommercial-NoDerivatives 4.0 Internacional
Ledesma, Brenda Cecilia
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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