| Autor: |
Freude, Dieter, Dvoyashkina, Nina, Arzumanov, Sergei S., Kolokolov, Daniil I., Stepanov, Alexander G., Chmelik, Christian, Jin, Hua, Li, Yanshuo, Kärger, Jörg, Haase, Jürgen |
| Zdroj: |
The Journal of Physical Chemistry - Part C; December 2018, Vol. 123 Issue: 3 p1904-1912, 9p |
| Abstrakt: |
Within the family of metal–organic frameworks, the zeolite–imidazolate framework (ZIF) of type ZIF-8 is among the most promising materials with potential application for hydrocarbon separation, notably of alkanes and alkenes. We have applied NMR spectroscopy for exploring the interaction of representative alkane/alkene mixtures with the host framework as well as the mobility of the various components in their mixture. Deviating from, for example, the separation patterns known for MFI-based membranes, the mobility of the faster molecules (alkenes) is found to remain essentially unaffected by the presence of more slowly diffusing molecules (alkanes). In addition, 2H and 67Zn magic-angle spinning NMR contributes to the characterization of ZIF-8 in search for guest-induced changes in the lattice structure. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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