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https://doi.org/10.21256/zhaw-3458| Publication type: | Article in scientific journal |
| Type of review: | Peer review (publication) |
| Title: | The structure of mesoporous silica obtained by pseudomorphic transformation of SBA-15 and SBA-16 |
| Authors: | Zucchetto, Nicola Reber, Michael Pestalozzi, Lias Schmid, Ramon Neels, Antonia Brühwiler, Dominik |
| DOI: | 10.21256/zhaw-3458 10.1016/j.micromeso.2017.08.046 |
| Published in: | Microporous and Mesoporous Materials |
| Volume(Issue): | 257 |
| Page(s): | 232 |
| Pages to: | 240 |
| Issue Date: | 2018 |
| Publisher / Ed. Institution: | Elsevier |
| ISSN: | 1387-1811 |
| Language: | English |
| Subjects: | Bimodal mesoporous silica; Hybrid pore structure; Pseudomorphic transformation; Cavitation; Bottleneck |
| Subject (DDC): | 540: Chemistry |
| Abstract: | Mesoporous silica with bimodal pore size distributions was prepared by pseudomorphic transformation of SBA-15 and SBA-16 in the presence of hexadecyltrimethylammonium ions as a structure-directing agent. The characteristic particle morphology of the starting materials was retained after the transformation. Analysis of the products by gas sorption and small-angle X-ray scattering (SAXS) revealed hybrid pore structures, which featured – depending on the degree of transformation – variable contributions from the original and the newly introduced pore systems. In the case of SBA-15, it was found that a high degree of transformation leads to a seemingly complete conversion of the original pores with a diameter of 7.1 nm to pores with a diameter of 4.0 nm. The SAXS pattern of the product shows additional peaks that can be assigned to the original SBA-15 pore spacing. Similarly, a cubic phase could be observed in the samples prepared by pseudomorphic transformation of SBA-16, despite an almost complete conversion of the SBA-16 cavities. This leads to the conclusion that the pore structure of the starting material significantly affects the outcome of the pseudomorphic transformation, thus opening possibilities for the synthesis of new porous materials with complex pore systems. |
| URI: | https://digitalcollection.zhaw.ch/handle/11475/1513 |
| Fulltext version: | Accepted version |
| License (according to publishing contract): | CC BY-NC-ND 4.0: Attribution - Non commercial - No derivatives 4.0 International |
| Restricted until: | 2019-11-17 |
| Departement: | Life Sciences and Facility Management |
| Organisational Unit: | Institute of Chemistry and Biotechnology (ICBT) |
| Published as part of the ZHAW project: | Multimodal Porous Particles |
| Appears in collections: | Publikationen Life Sciences und Facility Management |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| 2018_Zucchetto_post-print.pdf | 1.23 MB | Adobe PDF |  View/Open |
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Zucchetto, N., Reber, M., Pestalozzi, L., Schmid, R., Neels, A., & Brühwiler, D. (2018). The structure of mesoporous silica obtained by pseudomorphic transformation of SBA-15 and SBA-16. Microporous and Mesoporous Materials, 257, 232–240. https://doi.org/10.21256/zhaw-3458
Zucchetto, N. et al. (2018) ‘The structure of mesoporous silica obtained by pseudomorphic transformation of SBA-15 and SBA-16’, Microporous and Mesoporous Materials, 257, pp. 232–240. Available at: https://doi.org/10.21256/zhaw-3458.
N. Zucchetto, M. Reber, L. Pestalozzi, R. Schmid, A. Neels, and D. Brühwiler, “The structure of mesoporous silica obtained by pseudomorphic transformation of SBA-15 and SBA-16,” Microporous and Mesoporous Materials, vol. 257, pp. 232–240, 2018, doi: 10.21256/zhaw-3458.
ZUCCHETTO, Nicola, Michael REBER, Lias PESTALOZZI, Ramon SCHMID, Antonia NEELS und Dominik BRÜHWILER, 2018. The structure of mesoporous silica obtained by pseudomorphic transformation of SBA-15 and SBA-16. Microporous and Mesoporous Materials. 2018. Bd. 257, S. 232–240. DOI 10.21256/zhaw-3458
Zucchetto, Nicola, Michael Reber, Lias Pestalozzi, Ramon Schmid, Antonia Neels, and Dominik Brühwiler. 2018. “The Structure of Mesoporous Silica Obtained by Pseudomorphic Transformation of SBA-15 and SBA-16.” Microporous and Mesoporous Materials 257: 232–40. https://doi.org/10.21256/zhaw-3458.
Zucchetto, Nicola, et al. “The Structure of Mesoporous Silica Obtained by Pseudomorphic Transformation of SBA-15 and SBA-16.” Microporous and Mesoporous Materials, vol. 257, 2018, pp. 232–40, https://doi.org/10.21256/zhaw-3458.
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