| Autor: |
Yongchao Sun, Fangxu Fan, Lu Bai, Tianyou Li, Jianyu Guan, Fake Sun, Yijun Liu, Wu Xiao, Gaohong He, Canghai Ma |
| Jazyk: |
angličtina |
| Rok vydání: |
2023 |
| Předmět: |
|
| Zdroj: |
Results in Engineering, Vol 20, Iss , Pp 101398- (2023) |
| Druh dokumentu: |
article |
| ISSN: |
2590-1230 |
| DOI: |
10.1016/j.rineng.2023.101398 |
| Popis: |
Membrane separation technology provides an alternative to traditional thermally driven separations, owing to its advantages including low cost, energy-savings and environmental friendliness. However, the current membrane technology for gas separations using polymeric materials suffers the challenge of gas permeability-selectivity trade-offs. To overcome this hurdle, high-separation performance hybrid membranes are developed herein using microporous UiO-66-(OH)2 and PIM-1. Due to the stable interfacial hydrogen bonding, the MOF loading crosses the percolation threshold in hybrid membranes, and dual-path transport mechanisms govern the gas diffusion. Accordingly, the hybrid membranes with 40 wt% MOF loading exhibit a H2 permeability up to 9167.6 Barrer, transcending the 2008 H2/CH4 and H2/N2 Robeson upper bounds. Compared to neat PIM-1 membranes with a H2 permeability of 2378.3 Barrer, the H2 permeability of hybrid membranes increases over 285%, demonstrating ultra-high gas permeability. The design approach of hybrid membranes provides a viable pathway for the manufacture of hydrogen-bonded hybrid membranes with potential applications for hydrogen separation and CO2 capture. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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