Thin‐Film Composite Cyclomatrix Poly(Phenoxy)Phosphazenes Membranes for Hot Hydrogen Separation
Abstract An interfacial polymerization process is introduced for the fabrication of thermally stable cyclomatrix poly(phenoxy)phosphazenes thin‐film composite membranes that can sieve hydrogen from hot gas mixtures. By replacing the conventionally used aqueous phase with dimethyl sulfoxide/potassium...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Wiley-VCH
2023-02-01
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| Series: | Advanced Materials Interfaces |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/admi.202202077 |
| _version_ | 1797772448894025728 |
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| author | Farzaneh Radmanesh Ernst J. R. Sudhölter Alberto Tena Maria G. Elshof Nieck E. Benes |
| author_facet | Farzaneh Radmanesh Ernst J. R. Sudhölter Alberto Tena Maria G. Elshof Nieck E. Benes |
| author_sort | Farzaneh Radmanesh |
| collection | DOAJ |
| description | Abstract An interfacial polymerization process is introduced for the fabrication of thermally stable cyclomatrix poly(phenoxy)phosphazenes thin‐film composite membranes that can sieve hydrogen from hot gas mixtures. By replacing the conventionally used aqueous phase with dimethyl sulfoxide/potassium hydroxide, a variety of biphenol molecules are deprotonated to aryloxide anions that react with hexachlorocyclotriphosphazene dissolved in cyclohexane to form a thin film of a highly cross‐linked polymer film. The film membranes have persistent permselectivities for hydrogen over nitrogen (16–27) and methane (14–30) while maintaining hydrogen permeances in the order of (10−8–10−7 mol m−2s−1Pa−1) at temperatures as high as 260 °C and do not lose their performance after exposure to 450 °C. The unprecedented thermal stability of these polymer membranes opens the potential for industrial membrane gas separations at elevated temperatures. |
| first_indexed | 2024-03-12T21:52:04Z |
| format | Article |
| id | doaj.art-4b6e0bee2d8746a1b783f20d5d431954 |
| institution | Directory Open Access Journal |
| issn | 2196-7350 |
| language | English |
| last_indexed | 2024-03-12T21:52:04Z |
| publishDate | 2023-02-01 |
| publisher | Wiley-VCH |
| record_format | Article |
| series | Advanced Materials Interfaces |
| spelling | doaj.art-4b6e0bee2d8746a1b783f20d5d4319542023-07-26T01:35:58ZengWiley-VCHAdvanced Materials Interfaces2196-73502023-02-01104n/an/a10.1002/admi.202202077Thin‐Film Composite Cyclomatrix Poly(Phenoxy)Phosphazenes Membranes for Hot Hydrogen SeparationFarzaneh Radmanesh0Ernst J. R. Sudhölter1Alberto Tena2Maria G. Elshof3Nieck E. Benes4Membrane Science and Technology Cluster, Faculty of Science and Technology MESA+ Institute for Nanotechnology University of Twente P.O. Box 217 Enschede 7500 AE The NetherlandsMembrane Science and Technology Cluster, Faculty of Science and Technology MESA+ Institute for Nanotechnology University of Twente P.O. Box 217 Enschede 7500 AE The NetherlandsThe European Membrane Institute Twente, Faculty of Science and Technology University of Twente P.O. Box 217 Enschede 7500 AE The NetherlandsMembrane Science and Technology Cluster, Faculty of Science and Technology MESA+ Institute for Nanotechnology University of Twente P.O. Box 217 Enschede 7500 AE The NetherlandsMembrane Science and Technology Cluster, Faculty of Science and Technology MESA+ Institute for Nanotechnology University of Twente P.O. Box 217 Enschede 7500 AE The NetherlandsAbstract An interfacial polymerization process is introduced for the fabrication of thermally stable cyclomatrix poly(phenoxy)phosphazenes thin‐film composite membranes that can sieve hydrogen from hot gas mixtures. By replacing the conventionally used aqueous phase with dimethyl sulfoxide/potassium hydroxide, a variety of biphenol molecules are deprotonated to aryloxide anions that react with hexachlorocyclotriphosphazene dissolved in cyclohexane to form a thin film of a highly cross‐linked polymer film. The film membranes have persistent permselectivities for hydrogen over nitrogen (16–27) and methane (14–30) while maintaining hydrogen permeances in the order of (10−8–10−7 mol m−2s−1Pa−1) at temperatures as high as 260 °C and do not lose their performance after exposure to 450 °C. The unprecedented thermal stability of these polymer membranes opens the potential for industrial membrane gas separations at elevated temperatures.https://doi.org/10.1002/admi.202202077gas separationhigh temperatureinterfacial polymerizationmembranespolyphosphazenes |
| spellingShingle | Farzaneh Radmanesh Ernst J. R. Sudhölter Alberto Tena Maria G. Elshof Nieck E. Benes Thin‐Film Composite Cyclomatrix Poly(Phenoxy)Phosphazenes Membranes for Hot Hydrogen Separation Advanced Materials Interfaces gas separation high temperature interfacial polymerization membranes polyphosphazenes |
| title | Thin‐Film Composite Cyclomatrix Poly(Phenoxy)Phosphazenes Membranes for Hot Hydrogen Separation |
| title_full | Thin‐Film Composite Cyclomatrix Poly(Phenoxy)Phosphazenes Membranes for Hot Hydrogen Separation |
| title_fullStr | Thin‐Film Composite Cyclomatrix Poly(Phenoxy)Phosphazenes Membranes for Hot Hydrogen Separation |
| title_full_unstemmed | Thin‐Film Composite Cyclomatrix Poly(Phenoxy)Phosphazenes Membranes for Hot Hydrogen Separation |
| title_short | Thin‐Film Composite Cyclomatrix Poly(Phenoxy)Phosphazenes Membranes for Hot Hydrogen Separation |
| title_sort | thin film composite cyclomatrix poly phenoxy phosphazenes membranes for hot hydrogen separation |
| topic | gas separation high temperature interfacial polymerization membranes polyphosphazenes |
| url | https://doi.org/10.1002/admi.202202077 |
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