@inproceedings{f14d34b1f1f4428e9b84ffc18ab7a06f,
title = "Synthesis of Si-based mesoporous materials with different structural regularity",
abstract = "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.",
keywords = "Fumed silica, Si-MCM-41, Structure ordering, Surface acidity, TEOS, Textural property",
author = "Lifang Chen and Jesus L{\'o}pez and Wang, {Jin An} and Nore{\~n}a, {Luis E.} and Guoxian Yu and Fahai Cao and Yueqing Song and Xiaolong Zhou",
year = "2010",
doi = "10.4028/www.scientific.net/AMR.132.38",
language = "Ingl{\'e}s",
isbn = "9780878492404",
series = "Advanced Materials Research",
pages = "38--44",
booktitle = "Advances in New Catalytic Materials",
note = "2nd International Symposium on New Catalytic Materials, NCM-2 ; Conference date: 16-08-2009 Through 20-08-2009",
}