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.
Evidence of zeolitic-like domains in mesostructured aluminosilicates: FTIR spectroscopy of basic probe molecules / M. T., Sanchez; J., Agundez; J., PEREZ PARIENTE; C., MARQUEZ ALVAREZ; Onida, Barbara; E., Garrone. - 170:(2007), pp. 1905-1911. [10.1016/S0167-2991(07)81077-9]
Evidence of zeolitic-like domains in mesostructured aluminosilicates: FTIR spectroscopy of basic probe molecules
ONIDA, BARBARA;
2007
Abstract
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.Pubblicazioni consigliate
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
https://hdl.handle.net/11583/1642583
Attenzione
Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo