Issue 46, 2024

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

Abstract

We report the high adsorption of NH3 in a 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.

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

Supplementary files

Article information

Article type
Communication
Submitted
29 mrt 2024
Accepted
25 apr 2024
First published
26 apr 2024
This article is Open Access
Creative Commons BY license

Chem. Commun., 2024,60, 5912-5915

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

X. Zeng, J. Li, M. He, W. Lu, D. Crawshaw, L. Guo, Y. Ma, M. Kippax-Jones, Y. Cheng, P. Manuel, S. Rudić, M. D. Frogley, M. Schröder and S. Yang, Chem. Commun., 2024, 60, 5912 DOI: 10.1039/D4CC01449A

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