Abstract
Ordered mesoporous silica-NH2-MIL-53(Al) core–shell spheres of about 4 μm in diameter have been synthesized by seeding the corresponding mesoporous silica spheres (MSSs) with crystals of NH2-MIL-53(Al) and subsequent secondary crystal growth into a MOF shell. The morphology of the particles was analyzed by SEM, while TGA, EDX and XRD characterizations gave information on the composition and structure of this material and the activation of the MOF. N2 adsorption analysis revealed that the NH2-MIL-53(Al) shell controlled the access of guest molecules into the hydrophilic silica mesoporous structure, while the breathing behavior of the microporous NH2-MIL-53(Al) shell was confirmed by CO2 adsorption isotherms.
| Original language | English |
|---|---|
| Pages (from-to) | 116-121 |
| Number of pages | 6 |
| Journal | Microporous and Mesoporous Materials |
| Volume | 225 |
| DOIs | |
| Publication status | Published - 2016 |
Bibliographical note
Green Open Access added to TU Delft Institutional Repository as part of the Taverne amendment. More information about this copyright law amendment can be found at https://www.openaccess.nl. Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.Keywords
- Metal-organic framework
- NH2-MIL-53
- Ordered mesoporous silica
- Core-shell
- Adsorption