Abstract
We report the high adsorption of NH3 in the titanium-based metal-organic framework, MFM-300(Ti), comprising extended [TiO6]∞ chains linked by biphenyl-3,3’,5,5’-tetracarboxylate ligands. At 273 K and 1 bar, MFM-300(Ti) shows an exceptional NH3 uptake of 23.4 mmol g–1 with a record-high packing density of 0.84 g cm–3. Dynamic breakthrough experiments confirm the excellent uptake and separation of NH3 at low concentration (1000 ppm). The combination of in situ neutron powder diffraction and spectroscopic studies reveal strong, yet reversible binding interactions of NH3 to the framework oxygen sites.
Original language | English |
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Journal | Chemical Communications |
Early online date | 26 Apr 2024 |
DOIs | |
Publication status | E-pub ahead of print - 26 Apr 2024 |