Issue 46, 2009
From the journal:

Journal of Materials Chemistry

Isomeric periodic mesoporous organosilicas with controllable properties†

Carl Vercaemst,*a   Matthias Ide,a   Heiner Friedrich,b   Krijn P. de Jong,b   Francis Verpoorta  and  Pascal Van Der Voort*a  

* Corresponding authors

a Department of Inorganic and Physical Chemistry, Centre for Ordered Materials, Organometallics and Catalysis, University of Ghent, Krijgslaan 281, building S3, 9000 Ghent, Belgium
E-mail: carl.vercaemst@ugent.be
Fax: +32 9264 4983
Tel: +32 9264 4442

b Department of Inorganic Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, Sorbonnelaan 16, NL-3508 TB Utrecht, The Netherlands

Abstract

The synthesis procedure for isomeric periodic mesoporous organosilicas with E-configured ethenylene bridges was investigated using the homemade pure E-isomer of 1,2-bis(triethoxysilyl)ethene. The pH, aging temperature and the presence of cosolvents played a key role in obtaining well-ordered mesoporous materials with controllable properties and morphologies. By fine-tuning the reaction mixture acidity, PMOs with high surface areas and pore volumes could be attained. By selecting various alcohols as cosolvents and optimizing the alcohol concentration, PMOs with crystal-like disc shaped, fibrous and spherical particle morphologies were obtained. The synthesis temperature of these ethenylene-bridged PMOs influences the pore size, structure, connectivity and volume.

Graphical abstract: Isomeric periodic mesoporous organosilicas with controllable properties

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Article information

DOI
https://doi.org/10.1039/B913961C
Article type
Paper
Submitted
13 Jul 2009
Accepted
18 Sep 2009
First published
15 Oct 2009

J. Mater. Chem., 2009,19, 8839-8845

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Isomeric periodic mesoporous organosilicas with controllable properties

C. Vercaemst, M. Ide, H. Friedrich, K. P. de Jong, F. Verpoort and P. Van Der Voort, J. Mater. Chem., 2009, 19, 8839 DOI: 10.1039/B913961C

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