High adsorption of ammonia in a titanium–based metal-organic framework

DOI: 10.1039/D4CC01449A

Authors: Xiangbing Zeng (University of Manchester) , Jiangnan Li (University of Manchester; Beijing National Laboratory for Molecular Sciences) , Meng He (University of Manchester) , Wanpeng Lu (University of Manchester) , Danielle Crawshaw (University of Manchester) , Lixia Guo (University of Manchester; Beijing National Laboratory for Molecular Sciences) , Yujie Ma (University of Manchester) , Meredydd Kippax-Jones (University of Manchester; Diamond Light Source) , Yongqiang Cheng (Oak Ridge National Laboratory) , Pascal Manuel (ISIS Neutron and Muon Facility) , Svemir Rudic (ISIS Neutron and Muon Facility) , Mark D. Frogley (Diamond Light Source) , Martin Schroeder (University of Manchester) , Sihai Yang (University of Manchester; Beijing National Laboratory for Molecular Sciences)
Co-authored by industrial partner: No

Type: Journal Paper
Journal: Chemical Communications

State: Published (Approved)
Published: April 2024
Diamond Proposal Number(s): 30398

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.

Diamond Keywords: Gas Separation

Subject Areas: Materials, Chemistry


Instruments: B22-Multimode InfraRed imaging And Microspectroscopy

Other Facilities: WISH/TOSCA at ISIS

Added On: 29/04/2024 09:28

Documents:
d4cc01449a.pdf

Discipline Tags:

Chemistry Materials Science Metal-Organic Frameworks Metallurgy Organometallic Chemistry

Technical Tags:

Spectroscopy Infrared Spectroscopy Synchtron-based Fourier Transform Infrared Spectroscopy (SR-FTIR)