Structural and Mechanical Evolution of Mesoporous Films With Thermal Treatment: The Case of Brij 58 Templated Titania
- Autores
- Lionello, Diego Fernando; Steinberg, Paula Yael; Zalduendo, María Mercedes; Soler Illia, Galo Juan de Avila Arturo; Angelome, Paula Cecilia; Fuertes, María Cecilia
- Año de publicación
- 2017
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Mesoporous titania thin films (MTTFs) with well ordered cubic array of mesopores were synthesized on glass and silicon substrates using Brij 58 as a template. The effect of the thermal treatment and the substrate on the structural parameters (thickness, porosity, pore order, and crystallinity) and the mechanical properties of MTTFs were determined by electron microscopy, X-ray diffraction, Raman spectroscopy, 2D-small angle X-ray scattering, ellipsometric porosimetry, and nanoindentation. Clear differences in the mesostructural order evolution and crystallization behavior were observed as a function of the substrate and the thermal treatment. In particular, the anatase crystallization process occurs at lower temperatures for samples prepared on silicon when compared with samples prepared on glass, due to the balance between nanocrystals formation, mass diffusion, and Na+ migration from the substrate. As a consequence of such phenomena, the MTTFs mechanical properties are also dependent on the substrate. For samples prepared on glass the 325–350 °C range is the optimal annealing temperature to maximize the mechanical properties (E value of 45 GPa), while higher temperatures can be used for the Si supported oxides, to reach E values of 60 GPa. The obtained anatase crystal dimensions (below 4–5 nm) are restricted by the wall thickness, indicating the chosen thermal treatment prevents the mesoporous structure from collapsing even when the oxide presents thin walls and small pores, preserving high porosity and high porous ordering. As a consequence, the presented Brij 58 templated MTTFs exhibits smaller crystalline domains than analogous materials with thicker walls. Such properties could be exploited for applications in photocatalysis and titania-based solar cells.
Fil: Lionello, Diego Fernando. Comisión Nacional de Energía Atómica. Centro Atómico Constituyentes; Argentina. Universidad Nacional de San Martín. Instituto Sabato; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Steinberg, Paula Yael. Comisión Nacional de Energía Atómica. Centro Atómico Constituyentes; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Química Inorgánica, Analítica y Química Física; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Zalduendo, María Mercedes. Comisión Nacional de Energía Atómica. Centro Atómico Constituyentes; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Química Inorgánica, Analítica y Química Física; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Soler Illia, Galo Juan de Avila Arturo. Universidad Nacional de San Martin. Instituto de Nanosistemas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Angelome, Paula Cecilia. Comisión Nacional de Energía Atómica. Centro Atómico Constituyentes; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Fuertes, María Cecilia. Comisión Nacional de Energía Atómica. Centro Atómico Constituyentes; Argentina. Universidad Nacional de San Martín. Instituto Sabato; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina - Materia
-
MESOPOROUS MATERIALS
MECHANICAL PROPERTIES
NANOINDENTATION - Nivel de accesibilidad
- acceso embargado
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/41124
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Structural and Mechanical Evolution of Mesoporous Films With Thermal Treatment: The Case of Brij 58 Templated TitaniaLionello, Diego FernandoSteinberg, Paula YaelZalduendo, María MercedesSoler Illia, Galo Juan de Avila ArturoAngelome, Paula CeciliaFuertes, María CeciliaMESOPOROUS MATERIALSMECHANICAL PROPERTIESNANOINDENTATIONhttps://purl.org/becyt/ford/2.5https://purl.org/becyt/ford/2https://purl.org/becyt/ford/2.10https://purl.org/becyt/ford/2Mesoporous titania thin films (MTTFs) with well ordered cubic array of mesopores were synthesized on glass and silicon substrates using Brij 58 as a template. The effect of the thermal treatment and the substrate on the structural parameters (thickness, porosity, pore order, and crystallinity) and the mechanical properties of MTTFs were determined by electron microscopy, X-ray diffraction, Raman spectroscopy, 2D-small angle X-ray scattering, ellipsometric porosimetry, and nanoindentation. Clear differences in the mesostructural order evolution and crystallization behavior were observed as a function of the substrate and the thermal treatment. In particular, the anatase crystallization process occurs at lower temperatures for samples prepared on silicon when compared with samples prepared on glass, due to the balance between nanocrystals formation, mass diffusion, and Na+ migration from the substrate. As a consequence of such phenomena, the MTTFs mechanical properties are also dependent on the substrate. For samples prepared on glass the 325–350 °C range is the optimal annealing temperature to maximize the mechanical properties (E value of 45 GPa), while higher temperatures can be used for the Si supported oxides, to reach E values of 60 GPa. The obtained anatase crystal dimensions (below 4–5 nm) are restricted by the wall thickness, indicating the chosen thermal treatment prevents the mesoporous structure from collapsing even when the oxide presents thin walls and small pores, preserving high porosity and high porous ordering. As a consequence, the presented Brij 58 templated MTTFs exhibits smaller crystalline domains than analogous materials with thicker walls. Such properties could be exploited for applications in photocatalysis and titania-based solar cells.Fil: Lionello, Diego Fernando. Comisión Nacional de Energía Atómica. Centro Atómico Constituyentes; Argentina. Universidad Nacional de San Martín. Instituto Sabato; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Steinberg, Paula Yael. Comisión Nacional de Energía Atómica. Centro Atómico Constituyentes; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Química Inorgánica, Analítica y Química Física; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Zalduendo, María Mercedes. Comisión Nacional de Energía Atómica. Centro Atómico Constituyentes; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Química Inorgánica, Analítica y Química Física; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Soler Illia, Galo Juan de Avila Arturo. Universidad Nacional de San Martin. Instituto de Nanosistemas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Angelome, Paula Cecilia. Comisión Nacional de Energía Atómica. Centro Atómico Constituyentes; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Fuertes, María Cecilia. Comisión Nacional de Energía Atómica. Centro Atómico Constituyentes; Argentina. Universidad Nacional de San Martín. Instituto Sabato; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaAmerican Chemical Society2017-09info:eu-repo/date/embargoEnd/2018-10-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/41124Lionello, Diego Fernando; Steinberg, Paula Yael; Zalduendo, María Mercedes; Soler Illia, Galo Juan de Avila Arturo; Angelome, Paula Cecilia; et al.; Structural and Mechanical Evolution of Mesoporous Films With Thermal Treatment: The Case of Brij 58 Templated Titania; American Chemical Society; Journal of Physical Chemistry C; 121; 40; 9-2017; 22576-225861932-7447CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1021/acs.jpcc.7b09054info:eu-repo/semantics/altIdentifier/url/https://pubs.acs.org/doi/10.1021/acs.jpcc.7b09054info:eu-repo/semantics/embargoedAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:09:04Zoai:ri.conicet.gov.ar:11336/41124instacron: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:34982025-09-03 10:09:04.618CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Structural and Mechanical Evolution of Mesoporous Films With Thermal Treatment: The Case of Brij 58 Templated Titania |
title |
Structural and Mechanical Evolution of Mesoporous Films With Thermal Treatment: The Case of Brij 58 Templated Titania |
spellingShingle |
Structural and Mechanical Evolution of Mesoporous Films With Thermal Treatment: The Case of Brij 58 Templated Titania Lionello, Diego Fernando MESOPOROUS MATERIALS MECHANICAL PROPERTIES NANOINDENTATION |
title_short |
Structural and Mechanical Evolution of Mesoporous Films With Thermal Treatment: The Case of Brij 58 Templated Titania |
title_full |
Structural and Mechanical Evolution of Mesoporous Films With Thermal Treatment: The Case of Brij 58 Templated Titania |
title_fullStr |
Structural and Mechanical Evolution of Mesoporous Films With Thermal Treatment: The Case of Brij 58 Templated Titania |
title_full_unstemmed |
Structural and Mechanical Evolution of Mesoporous Films With Thermal Treatment: The Case of Brij 58 Templated Titania |
title_sort |
Structural and Mechanical Evolution of Mesoporous Films With Thermal Treatment: The Case of Brij 58 Templated Titania |
dc.creator.none.fl_str_mv |
Lionello, Diego Fernando Steinberg, Paula Yael Zalduendo, María Mercedes Soler Illia, Galo Juan de Avila Arturo Angelome, Paula Cecilia Fuertes, María Cecilia |
author |
Lionello, Diego Fernando |
author_facet |
Lionello, Diego Fernando Steinberg, Paula Yael Zalduendo, María Mercedes Soler Illia, Galo Juan de Avila Arturo Angelome, Paula Cecilia Fuertes, María Cecilia |
author_role |
author |
author2 |
Steinberg, Paula Yael Zalduendo, María Mercedes Soler Illia, Galo Juan de Avila Arturo Angelome, Paula Cecilia Fuertes, María Cecilia |
author2_role |
author author author author author |
dc.subject.none.fl_str_mv |
MESOPOROUS MATERIALS MECHANICAL PROPERTIES NANOINDENTATION |
topic |
MESOPOROUS MATERIALS MECHANICAL PROPERTIES NANOINDENTATION |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/2.5 https://purl.org/becyt/ford/2 https://purl.org/becyt/ford/2.10 https://purl.org/becyt/ford/2 |
dc.description.none.fl_txt_mv |
Mesoporous titania thin films (MTTFs) with well ordered cubic array of mesopores were synthesized on glass and silicon substrates using Brij 58 as a template. The effect of the thermal treatment and the substrate on the structural parameters (thickness, porosity, pore order, and crystallinity) and the mechanical properties of MTTFs were determined by electron microscopy, X-ray diffraction, Raman spectroscopy, 2D-small angle X-ray scattering, ellipsometric porosimetry, and nanoindentation. Clear differences in the mesostructural order evolution and crystallization behavior were observed as a function of the substrate and the thermal treatment. In particular, the anatase crystallization process occurs at lower temperatures for samples prepared on silicon when compared with samples prepared on glass, due to the balance between nanocrystals formation, mass diffusion, and Na+ migration from the substrate. As a consequence of such phenomena, the MTTFs mechanical properties are also dependent on the substrate. For samples prepared on glass the 325–350 °C range is the optimal annealing temperature to maximize the mechanical properties (E value of 45 GPa), while higher temperatures can be used for the Si supported oxides, to reach E values of 60 GPa. The obtained anatase crystal dimensions (below 4–5 nm) are restricted by the wall thickness, indicating the chosen thermal treatment prevents the mesoporous structure from collapsing even when the oxide presents thin walls and small pores, preserving high porosity and high porous ordering. As a consequence, the presented Brij 58 templated MTTFs exhibits smaller crystalline domains than analogous materials with thicker walls. Such properties could be exploited for applications in photocatalysis and titania-based solar cells. Fil: Lionello, Diego Fernando. Comisión Nacional de Energía Atómica. Centro Atómico Constituyentes; Argentina. Universidad Nacional de San Martín. Instituto Sabato; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Steinberg, Paula Yael. Comisión Nacional de Energía Atómica. Centro Atómico Constituyentes; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Química Inorgánica, Analítica y Química Física; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Zalduendo, María Mercedes. Comisión Nacional de Energía Atómica. Centro Atómico Constituyentes; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Química Inorgánica, Analítica y Química Física; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Soler Illia, Galo Juan de Avila Arturo. Universidad Nacional de San Martin. Instituto de Nanosistemas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Angelome, Paula Cecilia. Comisión Nacional de Energía Atómica. Centro Atómico Constituyentes; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Fuertes, María Cecilia. Comisión Nacional de Energía Atómica. Centro Atómico Constituyentes; Argentina. Universidad Nacional de San Martín. Instituto Sabato; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina |
description |
Mesoporous titania thin films (MTTFs) with well ordered cubic array of mesopores were synthesized on glass and silicon substrates using Brij 58 as a template. The effect of the thermal treatment and the substrate on the structural parameters (thickness, porosity, pore order, and crystallinity) and the mechanical properties of MTTFs were determined by electron microscopy, X-ray diffraction, Raman spectroscopy, 2D-small angle X-ray scattering, ellipsometric porosimetry, and nanoindentation. Clear differences in the mesostructural order evolution and crystallization behavior were observed as a function of the substrate and the thermal treatment. In particular, the anatase crystallization process occurs at lower temperatures for samples prepared on silicon when compared with samples prepared on glass, due to the balance between nanocrystals formation, mass diffusion, and Na+ migration from the substrate. As a consequence of such phenomena, the MTTFs mechanical properties are also dependent on the substrate. For samples prepared on glass the 325–350 °C range is the optimal annealing temperature to maximize the mechanical properties (E value of 45 GPa), while higher temperatures can be used for the Si supported oxides, to reach E values of 60 GPa. The obtained anatase crystal dimensions (below 4–5 nm) are restricted by the wall thickness, indicating the chosen thermal treatment prevents the mesoporous structure from collapsing even when the oxide presents thin walls and small pores, preserving high porosity and high porous ordering. As a consequence, the presented Brij 58 templated MTTFs exhibits smaller crystalline domains than analogous materials with thicker walls. Such properties could be exploited for applications in photocatalysis and titania-based solar cells. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-09 info:eu-repo/date/embargoEnd/2018-10-01 |
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/11336/41124 Lionello, Diego Fernando; Steinberg, Paula Yael; Zalduendo, María Mercedes; Soler Illia, Galo Juan de Avila Arturo; Angelome, Paula Cecilia; et al.; Structural and Mechanical Evolution of Mesoporous Films With Thermal Treatment: The Case of Brij 58 Templated Titania; American Chemical Society; Journal of Physical Chemistry C; 121; 40; 9-2017; 22576-22586 1932-7447 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/41124 |
identifier_str_mv |
Lionello, Diego Fernando; Steinberg, Paula Yael; Zalduendo, María Mercedes; Soler Illia, Galo Juan de Avila Arturo; Angelome, Paula Cecilia; et al.; Structural and Mechanical Evolution of Mesoporous Films With Thermal Treatment: The Case of Brij 58 Templated Titania; American Chemical Society; Journal of Physical Chemistry C; 121; 40; 9-2017; 22576-22586 1932-7447 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/doi/10.1021/acs.jpcc.7b09054 info:eu-repo/semantics/altIdentifier/url/https://pubs.acs.org/doi/10.1021/acs.jpcc.7b09054 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/embargoedAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
eu_rights_str_mv |
embargoedAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
dc.format.none.fl_str_mv |
application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
American Chemical Society |
publisher.none.fl_str_mv |
American Chemical Society |
dc.source.none.fl_str_mv |
reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
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CONICET Digital (CONICET) |
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CONICET Digital (CONICET) |
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Consejo Nacional de Investigaciones Científicas y Técnicas |
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CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.mail.fl_str_mv |
dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
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