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Proton conduction in a phosphonate-based metal-organic framework mediated by intrinsic 'free diffusion inside a sphere'

Pili, Simona, Argent, Stephen P., Morris, Christopher G., Rought, Peter, García-Sakai, Victoria, Silverwood, Ian P., Easun, Timothy, Li, Ming, Warren, Mark R., Murray, Claire A., Tang, Chiu C., Yang, Sihai and Schröder, Martin 2016. Proton conduction in a phosphonate-based metal-organic framework mediated by intrinsic 'free diffusion inside a sphere'. Journal of the American Chemical Society 138 (20) , pp. 6532-6355. 10.1021/jacs.6b02194

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Abstract

Understanding the molecular mechanism of proton conduction is crucial for the design of new materials with improved conductivity. Quasi-elastic neutron scattering (QENS) has been used to probe the mechanism of proton diffusion within a new phosphonate-based metal–organic framework (MOF) material, MFM-500(Ni). QENS suggests that the proton conductivity (4.5 × 10–4 S/cm at 98% relative humidity and 25 °C) of MFM-500(Ni) is mediated by intrinsic “free diffusion inside a sphere”, representing the first example of such a mechanism observed in MOFs.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Chemistry
Subjects: Q Science > QD Chemistry
Additional Information: This ACS article is provided under the terms of this ACS AuthorChoice/Editors’ Choice via Creative Commons CC-BY
Publisher: American Chemical Society
ISSN: 0002-7863
Funders: EPSRC, ERC
Date of First Compliant Deposit: 20 May 2016
Date of Acceptance: 17 April 2016
Last Modified: 06 Jul 2020 15:30
URI: http://orca.cf.ac.uk/id/eprint/91082

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