Mobile Constituent-Boosted Dynamic Separation of C 2 H 2 /C 2 H 4 /CO 2 Ternary Mixtures in Metal–Organic Frameworks
National University of Singapore
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Abstract
The separation of acetylene (C2H2), ethylene (C2H4), and carbon dioxide (CO2) is critical in the chemical industry, driven by the increasing demand for high-purity C2H2 and C2H4. While metal–organic frameworks (MOFs) offer an energy-efficient approach for adsorptive gas separation, achieving sub-angstrom precision in pore size adjustment remains challenging. In this work, we leverage two synergistic mechanisms in a double-interpenetrated framework: (1) global structural flexibility, arising from dynamic displacement of subnetworks to tailor pore dimensions, and (2) local flexibility, enabled by counterion and ligand rotation, to modulate the aperture binding affinity for precise molecular discrimination. A…
Citation impact
43
total citations
- FWCI
- 18.20
- Percentile
- 100%
- References
- 28
Citations per year
Authors
6Topics & keywords
Topics
Keywords
- Chemistry
- Isostructural
- Ternary operation
- Metal-organic framework
- Counterion
- Gas separation
- Crystallography
- Adsorption
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