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Controlling the Porosity of Microporous Silica by Sol-Gel Processing Using an Organic Template Approach

Published online by Cambridge University Press:  10 February 2011

Yunfeng Lu ,
G. Z. Cao ,
Rahul P. Kale ,
L. Delattre ,
C. Jeffrey Brinker  and
Gabriel P. Lopezl
Yunfeng Lu
Affiliation:
The UNM/NSF Center for Micro-Engineered Ceramics, Department of Chemical & Nuclear Engineering, University of New Mexico, Albuquerque, NM 87131.
G. Z. Cao
Affiliation:
The UNM/NSF Center for Micro-Engineered Ceramics, Department of Chemical & Nuclear Engineering, University of New Mexico, Albuquerque, NM 87131.
Rahul P. Kale
Affiliation:
The UNM/NSF Center for Micro-Engineered Ceramics, Department of Chemical & Nuclear Engineering, University of New Mexico, Albuquerque, NM 87131.
L. Delattre
Affiliation:
The UNM/NSF Center for Micro-Engineered Ceramics, Department of Chemical & Nuclear Engineering, University of New Mexico, Albuquerque, NM 87131.
C. Jeffrey Brinker*
Affiliation:
The UNM/NSF Center for Micro-Engineered Ceramics, Department of Chemical & Nuclear Engineering, University of New Mexico, Albuquerque, NM 87131. Ceramics Synthesis and Inorganic Chemistry Department, Organization 1846, Sandia National Laboratories, Albuquerque, NM 87185.
Gabriel P. Lopezl*
Affiliation:
The UNM/NSF Center for Micro-Engineered Ceramics, Department of Chemical & Nuclear Engineering, University of New Mexico, Albuquerque, NM 87131.
*
*Authors to whom correspondence should be addressed.
*Authors to whom correspondence should be addressed.
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Abstract

We use an organic template approach to prepare microporous silica with controlled pore size and narrow pore size distributions. This was accomplished by fabricating relatively dense hybrid silica matrices incorporating organic template ligands by sol-gel synthesis and then removing the organic ligands to create a microporous silica network. Comparison of computer simulation results and experimental data indicated that using this fugitive template approach, pore volume can be controlled by the amount of organic template added to the system, and pore size can be controlled by the size of the organic ligands.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 435: Symposium V – Better Ceramics Through Chemistry VII , 1996 , 271
Copyright
Copyright © Materials Research Society 1996

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