Tuning morphology of mesoporous titanium oxides through fluorinated surfactants-based systems
Four different fluorinated surfactant-based systems were used as template for the synthesis of highly ordered TiO2 mesoporous materials with large-pore wormhole structures. The calcined materials exhibit large pore diameters (up to 5.9 nm), high surface areas (900?1,180 m2 g-1), pore volumes (0.90?1...
| Autores: | , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2013 |
| País: | Argentina |
| Institución: | Consejo Nacional de Investigaciones Científicas y Técnicas |
| Repositorio: | CONICET Digital (CONICET) |
| Idioma: | inglés |
| OAI Identifier: | oai:ri.conicet.gov.ar:11336/5424 |
| Acceso en línea: | http://hdl.handle.net/11336/5424 |
| Access Level: | acceso abierto |
| Palabra clave: | Fluorinated Surfactants Sio2 Tio2 Pore Periodicity Surface Topography https://purl.org/becyt/ford/2.10 https://purl.org/becyt/ford/2 |
| Sumario: | Four different fluorinated surfactant-based systems were used as template for the synthesis of highly ordered TiO2 mesoporous materials with large-pore wormhole structures. The calcined materials exhibit large pore diameters (up to 5.9 nm), high surface areas (900?1,180 m2 g-1), pore volumes (0.90?1.25 cm3 g-1) and thick pore walls (4.6?7.7 nm) depending of the synthesis route. It is established that the self-aggregation behavior of fluorinated amphiphile systems can be manipulate and provides a rich phase behavior to obtain well-organized titania sieves with adjustable pore size and surface topography. By comparison to titania and silica sieves obtained by the same procedure, it can be established that there is a deep interaction between head groups of fluorinated surfactants and Ti(IV)(iPrO)4 showing that the inorganic precursor has a great influence on the properties of the final materials |
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