Journal
ADVANCED MATERIALS INTERFACES
Volume 5, Issue 19, Pages -Publisher
WILEY
DOI: 10.1002/admi.201800647
Keywords
H-2/CO2 separation; interfacial polymerization; membranes; metal-organic frameworks; polyamide
Funding
- European Union Seventh Framework Programme (FP7/2007-2013) [608490]
- Spanish MINECO
- FEDER [MAT2016-77290-R]
- Aragon Government
- ESF
- Spanish Education Ministry Program FPU2014
- Ministry of Economy, Industry and Competitiveness Program FPI2014
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The use of thin film composites containing metal-organic frameworks (MOFs) as filler is of widespread interest for nanofiltration issues, since their thin selective layer allows a high permeation flow. The application of this kind of membranes for gas separation should provide a better permeance in comparison with other polymeric membranes and a reduction in the amount of MOF required for their fabrication. Here, the preparation of 50-100 nm thick polyamide flat membranes containing zeolitic imidazolate framework-8 (ZIF-8) nanoparticles is shown via interfacial polymerization, containing a lower amount of MOF (0.013 g m(-2) membrane) as compared to other membranes used for gas separation. The membranes are applied for H-2/CO2 separation at high temperatures and pressures, showing a stable performance at 180 degrees C for at least seven days. Outstanding separation values are 328 GPU of H-2 and a H-2/CO2 selectivity of 18.1 at 180 degrees C and 6 bar feed without transmembrane pressure. These membranes, also measurable without sweep gas, are highly suitable for industrial application.
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