Polyphthalonitrile as a novel precursor for carbon membranes: tunable microstructure characteristics and gas permeation behavior
Carbon molecular sieve (CMS) membranes hold great promise for energy-efficient gas separation, contributing to mitigating greenhouse gas emissions. Exploring new types of microstructurally tunable polymeric precursors is critical for understanding the evolution of carbon microstructure arrangement a...
| Main Authors: | , , , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2024
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/179089 |
| _version_ | 1826112299874648064 |
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| author | Hu, Chun Po Liang, Yen Nan Yang, Hong-Li Hung, Wei-Song Lim, Jacob Song Kiat He, Zeming Hu, Matthew Xiao |
| author2 | School of Materials Science and Engineering |
| author_facet | School of Materials Science and Engineering Hu, Chun Po Liang, Yen Nan Yang, Hong-Li Hung, Wei-Song Lim, Jacob Song Kiat He, Zeming Hu, Matthew Xiao |
| author_sort | Hu, Chun Po |
| collection | NTU |
| description | Carbon molecular sieve (CMS) membranes hold great promise for energy-efficient gas separation, contributing to mitigating greenhouse gas emissions. Exploring new types of microstructurally tunable polymeric precursors is critical for understanding the evolution of carbon microstructure arrangement and adjusting the gas permeation behavior of CMS membranes. As a precursor for CMS membranes, polyphthalonitrile (PPN) resin with both tunable intermolecular distance and π-π stacking arrangement is reported for the first time. We have demonstrated that the aforementioned two key features of the thermally crosslinked PPN network are beneficial to forming PPN-CMS membranes with enlarged intermolecular distance and small-sized, narrow-distributed ultramicropores (<7 Å), thereby improving gas permeability and ideal selectivity. This study provides new insights into the microstructure evolution of PPN-derived microporous carbon materials. Owing to its excellent thermal stability, tunable microstructure arrangement, and flexibility of chemical synthesis, PPN represents a promising class of polymeric precursor materials for fabricating CMS membranes. |
| first_indexed | 2024-10-01T03:04:44Z |
| format | Journal Article |
| id | ntu-10356/179089 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T03:04:44Z |
| publishDate | 2024 |
| record_format | dspace |
| spelling | ntu-10356/1790892024-07-17T05:58:10Z Polyphthalonitrile as a novel precursor for carbon membranes: tunable microstructure characteristics and gas permeation behavior Hu, Chun Po Liang, Yen Nan Yang, Hong-Li Hung, Wei-Song Lim, Jacob Song Kiat He, Zeming Hu, Matthew Xiao School of Materials Science and Engineering Interdisciplinary Graduate School (IGS) Nanyang Environment and Water Research Institute Temasek Laboratories @ NTU Engineering Polyphthalonitrile Crosslinkable precursor Carbon molecular sieve (CMS) membranes hold great promise for energy-efficient gas separation, contributing to mitigating greenhouse gas emissions. Exploring new types of microstructurally tunable polymeric precursors is critical for understanding the evolution of carbon microstructure arrangement and adjusting the gas permeation behavior of CMS membranes. As a precursor for CMS membranes, polyphthalonitrile (PPN) resin with both tunable intermolecular distance and π-π stacking arrangement is reported for the first time. We have demonstrated that the aforementioned two key features of the thermally crosslinked PPN network are beneficial to forming PPN-CMS membranes with enlarged intermolecular distance and small-sized, narrow-distributed ultramicropores (<7 Å), thereby improving gas permeability and ideal selectivity. This study provides new insights into the microstructure evolution of PPN-derived microporous carbon materials. Owing to its excellent thermal stability, tunable microstructure arrangement, and flexibility of chemical synthesis, PPN represents a promising class of polymeric precursor materials for fabricating CMS membranes. Nanyang Technological University The authors also extend their gratitude to NTU for the research scholarship and funding. 2024-07-17T05:58:10Z 2024-07-17T05:58:10Z 2024 Journal Article Hu, C. P., Liang, Y. N., Yang, H., Hung, W., Lim, J. S. K., He, Z. & Hu, M. X. (2024). Polyphthalonitrile as a novel precursor for carbon membranes: tunable microstructure characteristics and gas permeation behavior. Carbon, 228, 119284-. https://dx.doi.org/10.1016/j.carbon.2024.119284 0008-6223 https://hdl.handle.net/10356/179089 10.1016/j.carbon.2024.119284 2-s2.0-85195215953 228 119284 en Carbon © 2024 Published by Elsevier Ltd. All rights reserved. |
| spellingShingle | Engineering Polyphthalonitrile Crosslinkable precursor Hu, Chun Po Liang, Yen Nan Yang, Hong-Li Hung, Wei-Song Lim, Jacob Song Kiat He, Zeming Hu, Matthew Xiao Polyphthalonitrile as a novel precursor for carbon membranes: tunable microstructure characteristics and gas permeation behavior |
| title | Polyphthalonitrile as a novel precursor for carbon membranes: tunable microstructure characteristics and gas permeation behavior |
| title_full | Polyphthalonitrile as a novel precursor for carbon membranes: tunable microstructure characteristics and gas permeation behavior |
| title_fullStr | Polyphthalonitrile as a novel precursor for carbon membranes: tunable microstructure characteristics and gas permeation behavior |
| title_full_unstemmed | Polyphthalonitrile as a novel precursor for carbon membranes: tunable microstructure characteristics and gas permeation behavior |
| title_short | Polyphthalonitrile as a novel precursor for carbon membranes: tunable microstructure characteristics and gas permeation behavior |
| title_sort | polyphthalonitrile as a novel precursor for carbon membranes tunable microstructure characteristics and gas permeation behavior |
| topic | Engineering Polyphthalonitrile Crosslinkable precursor |
| url | https://hdl.handle.net/10356/179089 |
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