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Direct quantification of surface barriers in nanoporous materials
Gespeichert in:
| Personen und Körperschaften: | , , , , |
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| Titel: | Direct quantification of surface barriers in nanoporous materials |
| Format: | E-Artikel |
| Sprache: | Englisch |
| veröffentlicht: |
2019
Online-Ausg.. 2020 |
| Schlagwörter: | |
| Quelle: | Qucosa |
| Zusammenfassung: | Successful design and application of nanoporous materials are essentially dependent on the molecular diffusion. Two mechanisms, i.e. surface barriers and intracrystalline diffusion, may dominate the mass transport. In the previous studies, these two mechanisms are difficult to determine with certainty by dual resistance model [1] (DRM). Here, we derive an expression of uptake rate relying solely on surface permeability, which provides a method to directly quantify the surface barriers. Subsequently, the effects of surface barriers and intracrystalline diffusion could be identified separately. |
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