Transport properties of hierarchical micro–mesoporous materials
| Autor: | Rustem Valiullin, Philipp Zeigermann, Daniel Schneider, Jörg Kärger, Dirk Mehlhorn |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Materials science
Nanotechnology 02 engineering and technology General Chemistry Microporous material 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences Complex materials Structure design Diffusion (business) 0210 nano-technology Mesoporous material |
| Zdroj: | Chemical Society Reviews. 45:3439-3467 |
| ISSN: | 1460-4744 0306-0012 |
| Popis: | Adding mesopore networks in microporous materials using the principles of hierarchical structure design is recognized as a promising route for eliminating their transport limitations and, therefore, for improving their value in technological applications. Depending on the routes of physico-chemical procedures or post-synthesis treatments used, very different geometries of the intentionally-added transport mesopores can be obtained. Understanding the structure-dynamics relationships in these complex materials with multiple porosities under different thermodynamical conditions remains a challenging task. In this review, we summarize the results obtained so far on experimental and theoretical studies of diffusion in micro-mesoporous materials. By considering four common classes of bi-porous materials, which are differing by the inter-connectivities of their sup-spaces as one of the most important parameter determining the transport rates, we discuss their generic transport properties and correlate the results delivered by the equilibrium and non-equilibrium techniques of diffusion measurements. |
| Databáze: | OpenAIRE |
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