Hydrotalcite like compounds as tunable surface dispersant precursor to Ce and La active sites

Autores
Bálsamo, Nancy Florentina; Eimer, Griselda Alejandra; Crivello, Mónica Elsie; Pecchi, Gina
Año de publicación
2016
Idioma
español castellano
Tipo de recurso
documento de conferencia
Estado
versión publicada
Descripción
The strongest impulse for developing new, more efficient and selective catalyst systems and for the realization of new process technology is strongly related to environmental compatibility The discovery of functional solid materials of high catalytic performance is crucial to most chemical processes. In this context, clay minerals are just a class of inorganic layered compounds, which can be engineered into various functional solid catalysts due to their inherent features in composition and structure. Layered materials, with their structure consisting of stacked sheets, represent an interesting opportunity for developing new materials with a tailored nano-design. Hydrotalcite-like compounds also referred as precursors are anionic clays with the general formula [M(II)1-xM(III)x(OH)2](An-)x/n.mH2O. Their structure is based on brucite-like layers in which a fraction of the divalent metal cations (MII: Mg2+) have been substituted by trivalent cations (MIII: Al3+) resulting in positively charged layers balanced by anions in the interlayer. Calcination of precursors leads to formation of mixed oxides. On the other hand, ceria presents particular chemical features such as its redox properties in the presence of transition metals which makes it very attractive for applications in catalytic formulations in numerous reactions. The main role played by ceria is related to the generation of anionic vacancies and to the participation of reactive oxygen species, which can be tuned in the presence of other elements in the lattice. This work reports the synthesis and characterization of metal mixed oxides obtained from Hydrotalcite-like compounds, where a constant fraction of Al was substituted by La and Ce.
Fil: Pecchi, Gina. Departamento de Físico-Química.Facultad de Ciencias Químicas.Universidad de Concepción .Concepción; Chile.
Fil: Crivello, Mónica Elsie. Centro de Investigación y Tecnología Química. Consejo Nacional de Investigaciones Científicas y Técnicas. Universidad Tecnológica Nacional. Facultad Regional Córdoba; Argentina.
Fil: Bálsamo, Nancy Florentina. Centro de Investigación y Tecnología Química. Consejo Nacional de Investigaciones Científicas y Técnicas. Universidad Tecnológica Nacional. Facultad Regional Córdoba; Argentina.
Fil: Eimer, Griselda Alejandra. Centro de Investigación y Tecnología Química. Consejo Nacional de Investigaciones Científicas y Técnicas. Universidad Tecnológica Nacional. Facultad Regional Córdoba; Argentina.
Materia
Mixed Metal Oxides
Hydrotalcite-like compounds
Lanthanum
Cerium
Nivel de accesibilidad
acceso abierto
Condiciones de uso
2022-05-30T22:01:24Z
Repositorio
Repositorio Institucional Abierto (UTN)
Institución
Universidad Tecnológica Nacional
OAI Identificador
oai:ria.utn.edu.ar:20.500.12272/6541
Acceder
id RIAUTN_ce21af90fd2f1aa42b9e23e40cf8d116
oai_identifier_str oai:ria.utn.edu.ar:20.500.12272/6541
network_acronym_str RIAUTN
repository_id_str a
network_name_str Repositorio Institucional Abierto (UTN)
spelling Hydrotalcite like compounds as tunable surface dispersant precursor to Ce and La active sitesBálsamo, Nancy FlorentinaEimer, Griselda AlejandraCrivello, Mónica ElsiePecchi, GinaMixed Metal OxidesHydrotalcite-like compoundsLanthanumCeriumThe strongest impulse for developing new, more efficient and selective catalyst systems and for the realization of new process technology is strongly related to environmental compatibility The discovery of functional solid materials of high catalytic performance is crucial to most chemical processes. In this context, clay minerals are just a class of inorganic layered compounds, which can be engineered into various functional solid catalysts due to their inherent features in composition and structure. Layered materials, with their structure consisting of stacked sheets, represent an interesting opportunity for developing new materials with a tailored nano-design. Hydrotalcite-like compounds also referred as precursors are anionic clays with the general formula [M(II)1-xM(III)x(OH)2](An-)x/n.mH2O. Their structure is based on brucite-like layers in which a fraction of the divalent metal cations (MII: Mg2+) have been substituted by trivalent cations (MIII: Al3+) resulting in positively charged layers balanced by anions in the interlayer. Calcination of precursors leads to formation of mixed oxides. On the other hand, ceria presents particular chemical features such as its redox properties in the presence of transition metals which makes it very attractive for applications in catalytic formulations in numerous reactions. The main role played by ceria is related to the generation of anionic vacancies and to the participation of reactive oxygen species, which can be tuned in the presence of other elements in the lattice. This work reports the synthesis and characterization of metal mixed oxides obtained from Hydrotalcite-like compounds, where a constant fraction of Al was substituted by La and Ce.Fil: Pecchi, Gina. Departamento de Físico-Química.Facultad de Ciencias Químicas.Universidad de Concepción .Concepción; Chile.Fil: Crivello, Mónica Elsie. Centro de Investigación y Tecnología Química. Consejo Nacional de Investigaciones Científicas y Técnicas. Universidad Tecnológica Nacional. Facultad Regional Córdoba; Argentina.Fil: Bálsamo, Nancy Florentina. Centro de Investigación y Tecnología Química. Consejo Nacional de Investigaciones Científicas y Técnicas. Universidad Tecnológica Nacional. Facultad Regional Córdoba; Argentina.Fil: Eimer, Griselda Alejandra. Centro de Investigación y Tecnología Química. Consejo Nacional de Investigaciones Científicas y Técnicas. Universidad Tecnológica Nacional. Facultad Regional Córdoba; Argentina.2022-05-30T22:01:24Z2022-05-30T22:01:24Z2016info:eu-repo/semantics/conferenceObjectinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_5794info:ar-repo/semantics/documentoDeConferenciapdfapplication/pdfhttp://hdl.handle.net/20.500.12272/6541-spainfo:eu-repo/semantics/openAccess2022-05-30T22:01:24Zhttp://creativecommons.org/licenses/by-nc-nd/4.0/Attribution-NonCommercial-NoDerivatives 4.0 InternacionalCrivello, Mónica ElsieX Atribución (Attribution): En cualquier explotación de la obra autorizada por la licencia será necesario reconocer la autoría (obligatoria en todos los casos). X No comercial (Non Commercial): La explotación de la obra queda limitada a usos no comerciales. X Sin obras derivadas (No Derivate Works): La autorización para explotar la obra no incluye la posibilidad de crear una obra derivada (traducciones, adaptaciones, etc.). X Compartir igual (Share Alike): La explotación autorizada incluye la creación de obras derivadas siempre que se mantenga la misma licencia al ser divulgadas.reponame:Repositorio Institucional Abierto (UTN)instname:Universidad Tecnológica Nacional2026-10-01T11:58:15Zoai:ria.utn.edu.ar:20.500.12272/6541instacron: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:a2026-10-01 11:58:15.934Repositorio Institucional Abierto (UTN) - Universidad Tecnológica Nacionalfalse
dc.title.none.fl_str_mv Hydrotalcite like compounds as tunable surface dispersant precursor to Ce and La active sites
title Hydrotalcite like compounds as tunable surface dispersant precursor to Ce and La active sites
spellingShingle Hydrotalcite like compounds as tunable surface dispersant precursor to Ce and La active sites
Bálsamo, Nancy Florentina
Mixed Metal Oxides
Hydrotalcite-like compounds
Lanthanum
Cerium
title_short Hydrotalcite like compounds as tunable surface dispersant precursor to Ce and La active sites
title_full Hydrotalcite like compounds as tunable surface dispersant precursor to Ce and La active sites
title_fullStr Hydrotalcite like compounds as tunable surface dispersant precursor to Ce and La active sites
title_full_unstemmed Hydrotalcite like compounds as tunable surface dispersant precursor to Ce and La active sites
title_sort Hydrotalcite like compounds as tunable surface dispersant precursor to Ce and La active sites
dc.creator.none.fl_str_mv Bálsamo, Nancy Florentina
Eimer, Griselda Alejandra
Crivello, Mónica Elsie
Pecchi, Gina
author Bálsamo, Nancy Florentina
author_facet Bálsamo, Nancy Florentina
Eimer, Griselda Alejandra
Crivello, Mónica Elsie
Pecchi, Gina
author_role author
author2 Eimer, Griselda Alejandra
Crivello, Mónica Elsie
Pecchi, Gina
author2_role author
author
author
dc.subject.none.fl_str_mv Mixed Metal Oxides
Hydrotalcite-like compounds
Lanthanum
Cerium
topic Mixed Metal Oxides
Hydrotalcite-like compounds
Lanthanum
Cerium
dc.description.none.fl_txt_mv The strongest impulse for developing new, more efficient and selective catalyst systems and for the realization of new process technology is strongly related to environmental compatibility The discovery of functional solid materials of high catalytic performance is crucial to most chemical processes. In this context, clay minerals are just a class of inorganic layered compounds, which can be engineered into various functional solid catalysts due to their inherent features in composition and structure. Layered materials, with their structure consisting of stacked sheets, represent an interesting opportunity for developing new materials with a tailored nano-design. Hydrotalcite-like compounds also referred as precursors are anionic clays with the general formula [M(II)1-xM(III)x(OH)2](An-)x/n.mH2O. Their structure is based on brucite-like layers in which a fraction of the divalent metal cations (MII: Mg2+) have been substituted by trivalent cations (MIII: Al3+) resulting in positively charged layers balanced by anions in the interlayer. Calcination of precursors leads to formation of mixed oxides. On the other hand, ceria presents particular chemical features such as its redox properties in the presence of transition metals which makes it very attractive for applications in catalytic formulations in numerous reactions. The main role played by ceria is related to the generation of anionic vacancies and to the participation of reactive oxygen species, which can be tuned in the presence of other elements in the lattice. This work reports the synthesis and characterization of metal mixed oxides obtained from Hydrotalcite-like compounds, where a constant fraction of Al was substituted by La and Ce.
Fil: Pecchi, Gina. Departamento de Físico-Química.Facultad de Ciencias Químicas.Universidad de Concepción .Concepción; Chile.
Fil: Crivello, Mónica Elsie. Centro de Investigación y Tecnología Química. Consejo Nacional de Investigaciones Científicas y Técnicas. Universidad Tecnológica Nacional. Facultad Regional Córdoba; Argentina.
Fil: Bálsamo, Nancy Florentina. Centro de Investigación y Tecnología Química. Consejo Nacional de Investigaciones Científicas y Técnicas. Universidad Tecnológica Nacional. Facultad Regional Córdoba; Argentina.
Fil: Eimer, Griselda Alejandra. Centro de Investigación y Tecnología Química. Consejo Nacional de Investigaciones Científicas y Técnicas. Universidad Tecnológica Nacional. Facultad Regional Córdoba; Argentina.
description The strongest impulse for developing new, more efficient and selective catalyst systems and for the realization of new process technology is strongly related to environmental compatibility The discovery of functional solid materials of high catalytic performance is crucial to most chemical processes. In this context, clay minerals are just a class of inorganic layered compounds, which can be engineered into various functional solid catalysts due to their inherent features in composition and structure. Layered materials, with their structure consisting of stacked sheets, represent an interesting opportunity for developing new materials with a tailored nano-design. Hydrotalcite-like compounds also referred as precursors are anionic clays with the general formula [M(II)1-xM(III)x(OH)2](An-)x/n.mH2O. Their structure is based on brucite-like layers in which a fraction of the divalent metal cations (MII: Mg2+) have been substituted by trivalent cations (MIII: Al3+) resulting in positively charged layers balanced by anions in the interlayer. Calcination of precursors leads to formation of mixed oxides. On the other hand, ceria presents particular chemical features such as its redox properties in the presence of transition metals which makes it very attractive for applications in catalytic formulations in numerous reactions. The main role played by ceria is related to the generation of anionic vacancies and to the participation of reactive oxygen species, which can be tuned in the presence of other elements in the lattice. This work reports the synthesis and characterization of metal mixed oxides obtained from Hydrotalcite-like compounds, where a constant fraction of Al was substituted by La and Ce.
publishDate 2016
dc.date.none.fl_str_mv 2016
2022-05-30T22:01:24Z
2022-05-30T22:01:24Z
dc.type.none.fl_str_mv info:eu-repo/semantics/conferenceObject
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_5794
info:ar-repo/semantics/documentoDeConferencia
format conferenceObject
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/20.500.12272/6541
-
url http://hdl.handle.net/20.500.12272/6541
identifier_str_mv -
dc.language.none.fl_str_mv spa
language spa
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
2022-05-30T22:01:24Z
http://creativecommons.org/licenses/by-nc-nd/4.0/
Attribution-NonCommercial-NoDerivatives 4.0 Internacional
Crivello, Mónica Elsie
X Atribución (Attribution): En cualquier explotación de la obra autorizada por la licencia será necesario reconocer la autoría (obligatoria en todos los casos). X No comercial (Non Commercial): La explotación de la obra queda limitada a usos no comerciales. X Sin obras derivadas (No Derivate Works): La autorización para explotar la obra no incluye la posibilidad de crear una obra derivada (traducciones, adaptaciones, etc.). X Compartir igual (Share Alike): La explotación autorizada incluye la creación de obras derivadas siempre que se mantenga la misma licencia al ser divulgadas.
eu_rights_str_mv openAccess
rights_invalid_str_mv 2022-05-30T22:01:24Z
http://creativecommons.org/licenses/by-nc-nd/4.0/
Attribution-NonCommercial-NoDerivatives 4.0 Internacional
Crivello, Mónica Elsie
X Atribución (Attribution): En cualquier explotación de la obra autorizada por la licencia será necesario reconocer la autoría (obligatoria en todos los casos). X No comercial (Non Commercial): La explotación de la obra queda limitada a usos no comerciales. X Sin obras derivadas (No Derivate Works): La autorización para explotar la obra no incluye la posibilidad de crear una obra derivada (traducciones, adaptaciones, etc.). X Compartir igual (Share Alike): La explotación autorizada incluye la creación de obras derivadas siempre que se mantenga la misma licencia al ser divulgadas.
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
_version_ 1877862390290186240
score 13.364332

Publicaciones similares