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Evidence of zeolitic-like domains in mesostructured aluminosilicates: FTIR spectroscopy of basic probe molecules

AuthorsSánchez, M. T.; Agúndez Rodríguez, Javier ; Pérez Pariente, Joaquín ; Márquez Álvarez, Carlos ; Onida, B.; Garrone, E.
Keywordsmesostructured aluminosilicates
crystalline framework
colloidal ZSM-5
FTIR spectroscopy
basic probe molecules
Issue DateJul-2007
CitationStudies in Surface Science and Catalysis
AbstractThe 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.
Publisher version (URL)http://dx.doi.org/10.1016/S0167-2991(07)81077-9
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