Ammonia Storage by Reversible Host-Guest Site Exchange in a Robust Metal-Organic Framework

Harry G W Godfrey; Ivan da Silva; Lydia Briggs; Joseph H Carter; Christopher G Morris; Mathew Savage; Timothy L Easun; Pascal Manuel; Claire A Murray; Chiu C Tang; Mark D Frogley; Gianfelice Cinque; Sihai Yang; Martin Schröder

doi:10.1002/anie.201808316

Ammonia Storage by Reversible Host-Guest Site Exchange in a Robust Metal-Organic Framework

Angew Chem Int Ed Engl. 2018 Nov 5;57(45):14778-14781. doi: 10.1002/anie.201808316. Epub 2018 Oct 1.

Authors

Affiliations

¹ School of Chemistry, University of Manchester, Oxford Road, Manchester, M13 9PL, UK.
² ISIS Neutron and Muon Source, Rutherford Appleton Laboratory, Harwell Oxford, Didcot, OX11 0QX, UK.
³ Diamond Light Source, Harwell Science and Innovation Campus, Oxfordshire, OX11 0DE, UK.
⁴ School of Chemistry, Cardiff University, Cardiff, CF10 3XQ, UK.

Abstract

MFM-300(Al) shows reversible uptake of NH₃ (15.7 mmol g^-1 at 273 K and 1.0 bar) over 50 cycles with an exceptional packing density of 0.62 g cm^-3 at 293 K. In situ neutron powder diffraction and synchrotron FTIR micro-spectroscopy on ND₃ @MFM-300(Al) confirms reversible H/D site exchange between the adsorbent and adsorbate, representing a new type of adsorption interaction.

Keywords: MFM-300; ammonia; metal-organic framework; neutron diffraction; storage materials.

Abstract

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