| Autor: |
Smith, Gemma L., Eyley, Jennifer E., Han, Xue, Zhang, Xinran, Li, Jiangnan, Jacques, Nicholas M., Godfrey, Harry G. W., Argent, Stephen P., McCormick McPherson, Laura J., Teat, Simon J., Cheng, Yongqiang, Frogley, Mark D., Cinque, Gianfelice, Day, Sarah J., Tang, Chiu C., Easun, Timothy L., Rudić, Svemir, Ramirez-Cuesta, Anibal J., Yang, Sihai, Schröder, Martin |
| Zdroj: |
Nature Materials; December 2019, Vol. 18 Issue: 12 p1358-1365, 8p |
| Abstrakt: |
Emissions of SO2from flue gas and marine transport have detrimental impacts on the environment and human health, but SO2is also an important industrial feedstock if it can be recovered, stored and transported efficiently. Here we report the exceptional adsorption and separation of SO2in a porous material, [Cu2(L)] (H4L = 4′,4‴-(pyridine-3,5-diyl)bis([1,1′-biphenyl]-3,5-dicarboxylic acid)), MFM-170. MFM-170 exhibits fully reversible SO2uptake of 17.5 mmol g−1at 298 K and 1.0 bar, and the SO2binding domains for trapped molecules within MFM-170 have been determined. We report the reversible coordination of SO2to open Cu(ii) sites, which contributes to excellent adsorption thermodynamics and selectivities for SO2binding and facile regeneration of MFM-170 after desorption. MFM-170 is stable to water, acid and base and shows great promise for the dynamic separation of SO2from simulated flue gas mixtures, as confirmed by breakthrough experiments. |
| Databáze: |
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