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Title: Pore size engineering of mesoporous silicas using decane as expander

Abstract

Decane has been used as swelling agent to enlarge the pore size of pure silica MCM-41 materials. The synthesis conditions such as the swelling agent/surfactant molar ratio, the adding sequence of swelling agent, etc., have been studied. The role of decane and the effect of crystallization time and temperature on the synthesis have also been discussed. Final compounds were intensively characterized by several techniques (XRD diffraction, SEM, TEM, and nitrogen adsorption-desorption analysis). The present work shows that decane is an effective expander to enlarge the pore size of mesoporous materials. Two possible mechanisms have been proposed to describe the swelling effect of decane molecules. The synthesis of mesoporous materials can be explained by different steps, which have been observed in the synthesis course of zeolites.

Authors:
; ; ;
Publication Date:
Research Org.:
Univ. de Namur (BE)
OSTI Identifier:
20075541
Resource Type:
Journal Article
Journal Name:
Langmuir
Additional Journal Information:
Journal Volume: 16; Journal Issue: 9; Other Information: PBD: 2 May 2000; Journal ID: ISSN 0743-7463
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; SILICATES; MOLECULAR SIEVES; PORE STRUCTURE; DECANE; SWELLING; MICELLAR SYSTEMS

Citation Formats

Blin, J.L., Otjacques, C., Herrier, G., and Su, B.L. Pore size engineering of mesoporous silicas using decane as expander. United States: N. p., 2000. Web. doi:10.1021/la9914615.
Blin, J.L., Otjacques, C., Herrier, G., & Su, B.L. Pore size engineering of mesoporous silicas using decane as expander. United States. doi:10.1021/la9914615.
Blin, J.L., Otjacques, C., Herrier, G., and Su, B.L. Tue . "Pore size engineering of mesoporous silicas using decane as expander". United States. doi:10.1021/la9914615.
@article{osti_20075541,
title = {Pore size engineering of mesoporous silicas using decane as expander},
author = {Blin, J.L. and Otjacques, C. and Herrier, G. and Su, B.L.},
abstractNote = {Decane has been used as swelling agent to enlarge the pore size of pure silica MCM-41 materials. The synthesis conditions such as the swelling agent/surfactant molar ratio, the adding sequence of swelling agent, etc., have been studied. The role of decane and the effect of crystallization time and temperature on the synthesis have also been discussed. Final compounds were intensively characterized by several techniques (XRD diffraction, SEM, TEM, and nitrogen adsorption-desorption analysis). The present work shows that decane is an effective expander to enlarge the pore size of mesoporous materials. Two possible mechanisms have been proposed to describe the swelling effect of decane molecules. The synthesis of mesoporous materials can be explained by different steps, which have been observed in the synthesis course of zeolites.},
doi = {10.1021/la9914615},
journal = {Langmuir},
issn = {0743-7463},
number = 9,
volume = 16,
place = {United States},
year = {2000},
month = {5}
}