Hypercrosslinked natural biopolymers with quasi-unimodal micropores for carbon capture
Ultra-microporous solid sorbents with high CO2 adsorption capacities and gas selectivity are preferred for carbon capture. Here we deliver such sorbents via a combination of narrow micropores, lack of mesopores and an abundance of CO2-philic functional groups. This was achieved by crosslinking ligni...
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Elsevier
2024-12-01
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| Series: | Carbon Capture Science & Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2772656824001179 |
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| author | Liang Ding Yue Wu Guanchu Lu Yixuan Zhang Mariolino Carta Xianfeng Fan Cher Hon Lau |
| author_facet | Liang Ding Yue Wu Guanchu Lu Yixuan Zhang Mariolino Carta Xianfeng Fan Cher Hon Lau |
| author_sort | Liang Ding |
| collection | DOAJ |
| description | Ultra-microporous solid sorbents with high CO2 adsorption capacities and gas selectivity are preferred for carbon capture. Here we deliver such sorbents via a combination of narrow micropores, lack of mesopores and an abundance of CO2-philic functional groups. This was achieved by crosslinking lignin waste obtained from a local paper factory, in Lewis's acid deep eutectic solvents (DESs) such as [ChCl][ZnCl2]2 and [ChCl][FeCl3]2, varying crosslinker types and optimizing experimental parameters. Hypercrosslinked polymers (HCPs) prepared in [ChCl][FeCl3]2 with 1,4-dichloroxylene crosslinkers comprised quasi-unimodal, ultra-narrow micropores. At 298 K, 1 bar, and using a gas mixture comprising 15 vol.% CO2 and 85 vol.% N2 (similar to post-combustion flue gas), the CO2 adsorption capacity and CO2/N2 selectivity of this HCP reached 18.1 cm3 g−1 and 835, respectively. Deployed in temperature swing adsorption and evaluated for vacuum pressure swing adsorption, the CO2 recovery rates of this HCP were >87 %, outperforming commercial solid sorbents such as zeolite 13X and PSAO2 HP Molsiv™. The optimization of sorbent microporosity with CO2-philic functional groups could pave the route towards developing bio-derived solid sorbents for carbon capture. |
| format | Article |
| id | doaj-art-d54a2a1fbc70499f8449fdae683c3f01 |
| institution | DOAJ |
| issn | 2772-6568 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Elsevier |
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| series | Carbon Capture Science & Technology |
| spelling | doaj-art-d54a2a1fbc70499f8449fdae683c3f012025-08-20T02:50:00ZengElsevierCarbon Capture Science & Technology2772-65682024-12-011310030510.1016/j.ccst.2024.100305Hypercrosslinked natural biopolymers with quasi-unimodal micropores for carbon captureLiang Ding0Yue Wu1Guanchu Lu2Yixuan Zhang3Mariolino Carta4Xianfeng Fan5Cher Hon Lau6School of Engineering, The University of Edinburgh, Kings Building, Edinburgh, EH9 3FB, United KingdomDepartment of Chemistry, Faculty of Science and Engineering, Swansea University, Grove Building, Singleton Park, Swansea, SA2 8PP, UKSchool of Engineering, The University of Edinburgh, Kings Building, Edinburgh, EH9 3FB, United KingdomSchool of Engineering, The University of Edinburgh, Kings Building, Edinburgh, EH9 3FB, United KingdomDepartment of Chemistry, Faculty of Science and Engineering, Swansea University, Grove Building, Singleton Park, Swansea, SA2 8PP, UKSchool of Engineering, The University of Edinburgh, Kings Building, Edinburgh, EH9 3FB, United KingdomSchool of Engineering, The University of Edinburgh, Kings Building, Edinburgh, EH9 3FB, United Kingdom; Corresponding author.Ultra-microporous solid sorbents with high CO2 adsorption capacities and gas selectivity are preferred for carbon capture. Here we deliver such sorbents via a combination of narrow micropores, lack of mesopores and an abundance of CO2-philic functional groups. This was achieved by crosslinking lignin waste obtained from a local paper factory, in Lewis's acid deep eutectic solvents (DESs) such as [ChCl][ZnCl2]2 and [ChCl][FeCl3]2, varying crosslinker types and optimizing experimental parameters. Hypercrosslinked polymers (HCPs) prepared in [ChCl][FeCl3]2 with 1,4-dichloroxylene crosslinkers comprised quasi-unimodal, ultra-narrow micropores. At 298 K, 1 bar, and using a gas mixture comprising 15 vol.% CO2 and 85 vol.% N2 (similar to post-combustion flue gas), the CO2 adsorption capacity and CO2/N2 selectivity of this HCP reached 18.1 cm3 g−1 and 835, respectively. Deployed in temperature swing adsorption and evaluated for vacuum pressure swing adsorption, the CO2 recovery rates of this HCP were >87 %, outperforming commercial solid sorbents such as zeolite 13X and PSAO2 HP Molsiv™. The optimization of sorbent microporosity with CO2-philic functional groups could pave the route towards developing bio-derived solid sorbents for carbon capture.http://www.sciencedirect.com/science/article/pii/S2772656824001179LigninDeep eutectic solventsCarbon captureHypercrosslinked polymers |
| spellingShingle | Liang Ding Yue Wu Guanchu Lu Yixuan Zhang Mariolino Carta Xianfeng Fan Cher Hon Lau Hypercrosslinked natural biopolymers with quasi-unimodal micropores for carbon capture Carbon Capture Science & Technology Lignin Deep eutectic solvents Carbon capture Hypercrosslinked polymers |
| title | Hypercrosslinked natural biopolymers with quasi-unimodal micropores for carbon capture |
| title_full | Hypercrosslinked natural biopolymers with quasi-unimodal micropores for carbon capture |
| title_fullStr | Hypercrosslinked natural biopolymers with quasi-unimodal micropores for carbon capture |
| title_full_unstemmed | Hypercrosslinked natural biopolymers with quasi-unimodal micropores for carbon capture |
| title_short | Hypercrosslinked natural biopolymers with quasi-unimodal micropores for carbon capture |
| title_sort | hypercrosslinked natural biopolymers with quasi unimodal micropores for carbon capture |
| topic | Lignin Deep eutectic solvents Carbon capture Hypercrosslinked polymers |
| url | http://www.sciencedirect.com/science/article/pii/S2772656824001179 |
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