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Pore structure and surface area of silica SBA-15: influence of washing and scale-up

Thielemann, Jörg P. ; Girgsdies, Frank ; Schlögl, Robert ; Hess, Christian (2024)
Pore structure and surface area of silica SBA-15: influence of washing and scale-up.
In: Beilstein Journal of Nanotechnology, 2011, 2
doi: 10.26083/tuprints-00026768
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Item Type: Article
Type of entry: Secondary publication
Title: Pore structure and surface area of silica SBA-15: influence of washing and scale-up
Language: English
Date: 23 April 2024
Place of Publication: Darmstadt
Year of primary publication: 2011
Place of primary publication: Frankfurt, M.
Publisher: Beilstein-Institut
Journal or Publication Title: Beilstein Journal of Nanotechnology
Volume of the journal: 2
DOI: 10.26083/tuprints-00026768
Corresponding Links:
Origin: Secondary publication service
Abstract:

The removal of the surfactant (EO₂₀PO₇₀EO₂₀) by washing before final calcination is a critical step in the synthesis of silica SBA-15. In contrast to washing with pure water or ethanol, washing with water and ethanol may, depending on the quantity of solvent used, alter the homogeneity and order of the pores, but also lead to an increase of the surface area of SBA-15. A reduction of solvent volume and a controlled washing protocol allow the synthesis of high surface area SBA-15 materials with a narrow monomodal pore size distribution. For larger batch sizes the influence of the quantity of solvent on the quality of the SBA-15 is reduced.

Uncontrolled Keywords: SBA-15, scale-up, silica mesoporous material, tensile strength effect, washing
Status: Publisher's Version
URN: urn:nbn:de:tuda-tuprints-267682
Classification DDC: 500 Science and mathematics > 540 Chemistry
Divisions: 07 Department of Chemistry > Eduard Zintl-Institut > Physical Chemistry
Date Deposited: 23 Apr 2024 08:48
Last Modified: 07 Aug 2024 11:33
URI: https://tuprints.ulb.tu-darmstadt.de/id/eprint/26768
PPN: 520338634
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