Synthesis of Si-based mesoporous materials with different structural regularity

Lifang Chen, Jesus López, Jin An Wang, Luis E. Noreña, Guoxian Yu, Fahai Cao, Yueqing Song, Xiaolong Zhou

Producción científica: Capítulo del libro/informe/acta de congresoContribución a la conferenciarevisión exhaustiva

Resumen

Two types of mesoporous Si-MCM-41 materials were synthesized via a cationic surfactant template method using different Si-precursors. The materials obtained were characterized by FTIR, XRD, BET, TEM and 29Si MAS-NMR techniques. When fumed silica was used as Si precursor, a Si-MCM-41-I solid with wormhole-like pore topologies was obtained. However, when tetraethylorthosilicate (TEOS) was used as Si precursor, a mesoporous Si-MCM-41-II solid with hexagonal arranges and a long-range ordered structure could be obtained. These two kinds of mesoporous materials had a uniform pore size distribution with an average pore diameter within 2.3-2.8 nm. Rather weak Lewis acid sites were formed on both the Si-MCM-41 samples prepared by the two methods.

Idioma originalInglés
Título de la publicación alojadaAdvances in New Catalytic Materials
Páginas38-44
Número de páginas7
DOI
EstadoPublicada - 2010
Publicado de forma externa
Evento2nd International Symposium on New Catalytic Materials, NCM-2 - Cancun, México
Duración: 16 ago. 200920 ago. 2009

Serie de la publicación

NombreAdvanced Materials Research
Volumen132
ISSN (versión impresa)1022-6680

Conferencia

Conferencia2nd International Symposium on New Catalytic Materials, NCM-2
País/TerritorioMéxico
CiudadCancun
Período16/08/0920/08/09

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