2020 Fiscal Year Final Research Report
MOF-based polycrystalline nanomembranes directly grown on microporous polymeric supports for advanced post-combustion CO2 separation
| Project/Area Number |
19K15342
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| Research Category |
Grant-in-Aid for Early-Career Scientists
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| Allocation Type | Multi-year Fund |
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| Review Section |
Basic Section 27010:Transport phenomena and unit operations-related
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| Research Institution | Kyushu University |
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Principal Investigator |
SELYANCHYN Roman 九州大学, カーボンニュートラル・エネルギー国際研究所, 助教 (90729790)
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| Project Period (FY) |
2019-04-01 – 2021-03-31
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| Keywords | thin-film composite / metal-organic network / CO2/N2 separation / selective interface / CO2 philicity / transport phenomena / ultramicroporous MOF / mixed matrix membranes |
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| Outline of Final Research Achievements |
Crystalline materials were incorporated in the composite membranes for the selective CO2 gas separation. Prussian blue (PB) crystal was grown in form of membrane directly on the variety of organic and inorganic porous supports. Composite membrane with PB selective layer demonstrated the characteristic size sieving effect. As a result, enhanced separation of CO2 from nitrogen was observed. Using the different approach, fluorinated metal organic framework material (NbOFFIVE-1-Ni) was incorporated in the Pebax-1567 polymer matrix as a part of separation membrane. It was found that proper combination of MOF and CO2-philic polymer can deliver unique CO2 capture from low concentration feed. It was conceptualized how the high CO2 sorption selectivity of hybrid microporous MOFs can be utilized to achieve the separation membrane with high CO2 permeation selectivity. Based on the results membrane-based CO2 separation from air can be considered.
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| Free Research Field |
二酸化炭素ガス分離膜
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| Academic Significance and Societal Importance of the Research Achievements |
本研究では、二酸化炭素を効率的に回収するための膜を開発しました。低濃度混合物からCO2を分離するためにガス分離膜を使用するという前例を生み出します。メンブレンに選択的金属有機構造体を適切に組み込むことで、低濃度混合物からの効率的な捕捉が可能になります。気候変動は喫緊の課題であり、その解決が求められています。本研究の発展、ガス分離の分野での重要な波及効果が期待され、また、建築物の空気浄化や農業などの環境管理にも重要な役割を果たすことも期待されます。
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