Evidence of zeolitic-like domains in mesostructured aluminosilicates: FTIR spectroscopy of basic probe molecules
The acid properties of mesostructured aluminosilicates synthesized from gel precursors of colloidal ZSM-5 zeolite have been studied by FTIR spectroscopy of basic probe molecules (ammonia, CO and propene). It is shown that these materials possess stronger acid sites with higher thermal stability than...
| Autores: | , , , , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2007 |
| País: | España |
| Institución: | Consejo Superior de Investigaciones Científicas (CSIC) |
| Repositorio: | DIGITAL.CSIC. Repositorio Institucional del CSIC |
| OAI Identifier: | oai:digital.csic.es:10261/27506 |
| Acceso en línea: | http://hdl.handle.net/10261/27506 |
| Access Level: | acceso abierto |
| Palabra clave: | mesostructured aluminosilicates crystalline framework colloidal ZSM-5 FTIR spectroscopy Basic probe molecules |
| Sumario: | The acid properties of mesostructured aluminosilicates synthesized from gel precursors of colloidal ZSM-5 zeolite have been studied by FTIR spectroscopy of basic probe molecules (ammonia, CO and propene). It is shown that these materials possess stronger acid sites with higher thermal stability than those of conventional A1-MCM-41. These results explain the enhanced m-xylene isomerization activity of these materials and are attributed to the presence of zeolitic-like domains in the aluminosilicate framework. |
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