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Large Cage Face-Centered-Cubic Fm 3 m Mesoporous Silica: Synthesis and Structure
Abstract
The synthesis and precise structural characterization of highly ordered three-dimensional close-packed cage-type mesoporous silica is reported. The siliceous mesoporous material is proven to be commensurate with the face-centered-cubic Fm 3 m symmetry in high purity by a combination of experimental and simulated powder X-ray diffraction (XRD) and transmission electron microscopy (TEM) analyses. The cage-type calcined samples were additionally characterized by nitrogen physisorption. The aqueous synthesis method to prepare large cage mesoporous silica with cubic Fm 3 m structure is based on the use of EO 106 PO 70 EO 106 triblock copolymer (F127) at low HCl concentrations, with no additional salts or organic additives. Here, emphasis is put on the low HCl concentration regime, allowing the facile thermodynamic control of the silica−triblock copolymer mesophase self-assembly. Further, simple application of hydrothermal treatments at various temperatures ranging from 45 to 150 °C enables the tailoring of the mesopore diameters and apertures. The combination of experimental and simulated XRD patterns and TEM images is confirmed to be a very powerful means for the accurate elucidation of the structure of new mesoporous materials.
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Citations
Cited by
On the controllable soft-templating approach to mesoporous silicates
Wan, Y., & Zhao (2007) · Chemical Reviews · doi:10.1021/cr068020s · Cited by 2,371
Kim, T.-W., Kleitz, F., Paul, B., & Ryoo, R. (2005) · Journal of the American Chemical Society · doi:10.1021/ja042601m · Cited by 733
Self-citationDeng, Y., Yu, T., Wan, Y., Shi, Y., Meng, Y., Gu, D., Zhang, L., Huang, Y., Liu, C., Wu, X., et al. (2007) · Journal of the American Chemical Society · doi:10.1021/ja067379v · Cited by 402
Zeolite and Silica-based CO2 Adsorbents
Laugel, G., Bingre, R., & Louis, B. (2018) · Post-combustion Carbon Dioxide Capture Materials · doi:10.1039/9781788013352-00076 · Cited by 2
Metadata
- Authors
- Kleitz, F., Liu, D., Anilkumar, G. M., Park, I.-S., Solovyov, L. A., Shmakov, A. N., & Ryoo, R.
- Venue
- The Journal of Physical Chemistry B
- Publisher
- American Chemical Society (ACS)
- Published
- 2003-12-01
- Volume
- 107
- Issue
- 51
- Pages
- 14296-14300
- ISSN
- 1520-5207 (ISSN-L)
- 1520-6106
- OpenAlex
- W2135988370
- Cited by
- 319
- References
- 0
- FWCI
- 9.75
- Type
- journal article
- Language
- en
- Open access
- closed
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