Autor: |
Irina Gruber, Alexander Nuhnen, Arne Lerch, Sandra Nießing, Maximilian Klopotowski, Annika Herbst, Matthias Karg, Christoph Janiak |
Jazyk: |
angličtina |
Rok vydání: |
2019 |
Předmět: |
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Zdroj: |
Frontiers in Chemistry, Vol 7 (2019) |
Druh dokumentu: |
article |
ISSN: |
2296-2646 |
DOI: |
10.3389/fchem.2019.00777 |
Popis: |
Nano/microsized MIL-101Cr was synthesized by microwave heating of emulsions for the use as a composite with Matrimid mixed-matrix membranes (MMM) to enhance the performance of a mixed-gas-separation. As an example, we chose CO2/CH4 separation. Although the incorporation of MIL-101Cr in MMMs is well-known, the impact of nanosized MIL-101Cr in MMMs is new and shows an improvement compared to microsized MIL-101Cr under the same conditions and mixed-gas permeation. In order to reproducibly obtain nanoMIL-101Cr microwave heating was supplemented by carrying out the reaction of chromium nitrate and 1,4-benzenedicarboxylic acid in heptane-in-water emulsions with the anionic surfactant sodium oleate as emulsifier. The use of this emulsion with the phase inversion temperature (PIT) method offered controlled nucleation and growth of nanoMIL-101 particles to an average size of |
Databáze: |
Directory of Open Access Journals |
Externí odkaz: |
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