In-situ studies of the formation mechanism of SBA-15

Viveka Alfredsson, H. Amenitsch, Katarina Flodström, M. Linden, C. V. Teixeira, Håkan Wennerström, A. Sayari, M. Jaroniec

Research output: Chapter in Book/Report/Conference proceedingPaper in conference proceedingpeer-review

Abstract

The formation process of SBA-15 has been investigated by time resolved TEM, in-situ SAXS/SAXD and in-situ NMR. The synthesis was done at 35 degrees in acidic solution with tetramethylorthosilicate as the silica source and Pluronic P123 as the structure directing amphiphile. The initially formed silica-polymer composite consists of flocs of spherical micelles in a silica matrix. The micelles then coalesce forming rods that eventually pack into the ordered array of which SBA-15 consists.
Original languageEnglish
Title of host publicationNanoporous Materials IV, 156
PublisherElsevier
Pages69-74
Volume156
ISBN (Print)0-444-51748-0
Publication statusPublished - 2005

Publication series

Name
Volume156

Subject classification (UKÄ)

  • Physical Chemistry (including Surface- and Colloid Chemistry)

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