Journal
JOURNAL OF MATERIALS CHEMISTRY A
Volume 3, Issue 45, Pages 22574-22583Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5ta00679a
Keywords
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Funding
- National Natural Science Foundation of China [21136007, 51302184]
- National Research Fund for Fundamental Key Projects [2014CB260402]
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Based on an in-house-constructed separation apparatus, controlled and targeted CO2 and CH4 capture, respectively, from binary mixtures (CO2/CH4 or CH4/N-2) has been realized on two flexible MOFs, [Cu(dhbc)(2)(4,4'-bipy)] and [Cu(4,4'-bipy)(2)(BF4)(2)], in the form of a packed bed of particles. These gas mixtures were effectively separated on the flexible MOFs by using a unique two-stage separation technique. Molecular dynamic simulations have been performed to assess the atomistic interactions of small molecules in flexible MOFs that directly influence the dynamic gas separation. Furthermore, the structural stability and the effect of H2O on these gas separations have been investigated, and the results suggest that the flexible MOFs show significantly improved gas separation performances.
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