Isomeric periodic mesoporous organosilicas with controllable properties

Carl Vercaemst, Matthias Ide, Heiner Friedrich, Krijn P. De Jong, Francis Verpoort, Pascal Van Der Voort

Research output: Contribution to journalArticleAcademicpeer-review

15 Citations (Scopus)

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.

Original languageEnglish
Pages (from-to)8839-8845
Number of pages7
JournalJournal of Materials Chemistry
Volume19
Issue number46
DOIs
Publication statusPublished - 15 Oct 2009
Externally publishedYes

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