Highly anisotropic distribution of iron nanoparticles within MCM-41 Mesoporous Silica
Electron microscopy techniques are used to visualize the spatial distribution of iron nanoparticles inside a mesoporous MCM-41 molecular sieve. Direct observation of the iron oxide nanoparticles by STEM-HAADF imaging reveals a highly non-uniform spatial distribution inside the mesopores. These parti...
| Autores: | , , , , , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2006 |
| País: | Argentina |
| Institución: | Consejo Nacional de Investigaciones Científicas y Técnicas |
| Repositorio: | CONICET Digital (CONICET) |
| Idioma: | inglés |
| OAI Identifier: | oai:ri.conicet.gov.ar:11336/57679 |
| Acceso en línea: | http://hdl.handle.net/11336/57679 |
| Access Level: | acceso abierto |
| Palabra clave: | Catalysis Fe/Mcm-41 Iron Oxide Nanoparticles Mesoporous Materials Stem-Haadf https://purl.org/becyt/ford/2.4 https://purl.org/becyt/ford/2 |
| Sumario: | Electron microscopy techniques are used to visualize the spatial distribution of iron nanoparticles inside a mesoporous MCM-41 molecular sieve. Direct observation of the iron oxide nanoparticles by STEM-HAADF imaging reveals a highly non-uniform spatial distribution inside the mesopores. These particles are retained in the pores after a reduction treatment unlike the behavior found in other similar systems. It is found that thermal treatments induce changes in its morphology, creating nanowires from particle strings. © 2005 Elsevier Ltd. All rights reserved. |
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