High adsorption of ammonia in a titanium–based metal-organic framework
【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.
【Author】
Xiangdi Zeng, Jiangnan Li, Meng He, Wanpeng Lu, danielle crawshaw, Lixia Guo, Yujie Ma, meredydd kippax-jones, Yongqiang Cheng, Pascal Manuel, Svemir Rudic, Mark David Frogley, Martin Schroder, Sihai Yang
【Journal】
Chemical Communications(IF：6.2) Time：2024-04-26
