Emerson, AJ, Hawes, CS ORCID: 0000-0001-6902-7939, Marshall, M, Knowles, GP, Chaffee, AL, Batten, SR and Turner, DR (2018) A high-connectivity approach to a hydrolytically stable MOF for CO2 capture from flue gas. Chemistry of Materials. ISSN 0897-4756

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Abstract

A CdII-based metal-organic framework (MOF) demonstrates that incorporation of a ligand with high-connectivity yields a material with remarkable hydrolytic stability that is able to capture CO2 un-der simulated industrial flue gas conditions. A novel triaminepenta-carboxylic acid ligand, isolated as its trihydrochloride salt N,Nʺ-di(4-carboxybenzyl)-N,N′,Nʺ-tri(acetic acid)-2,2′-diaminodiethylamine trihydrochloride (H8L1)Cl3, has been pre-pared, characterised and subsequently used in the formation of poly-[Cd2.5(L1)(OH2)]·DMF·4H2O, a highly connected three-dimensional network, with 12 out of 13 donor atoms coordinating per ligand. After solvent exchange it was found that 1 absorbed 170 cm3(STP)/g of N2 at 77 K and 66 cm3(STP)/g of CO2 at 273 K. Hydrolytic experiments performed on 1 demonstrated that the ma-terial completely retained crystallinity after being immersed in boil-ing water for 72 hours, as well as after being exposed to a simulat-ed flue gas stream at 150 °C.

Item Type: Article
Additional Information: This is the accepted author manuscript (AAM). The final published version (version of record) is available online via American Chemical Society at http://doi.org/10.1021/acs.chemmater.8b03060 - please refer to any applicable terms of use of the publisher.
Subjects: Q Science > QD Chemistry
Divisions: Faculty of Natural Sciences > School of Chemical and Physical Sciences
Depositing User: Symplectic
Date Deposited: 28 Sep 2018 09:23
Last Modified: 28 Sep 2018 09:26
URI: http://eprints.keele.ac.uk/id/eprint/5375

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