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 L. ORCID: https://orcid.org/0000-0002-0713-2642, 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. 6352-6355. 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 May 2023 08:24
URI:	https://orca.cardiff.ac.uk/id/eprint/91082

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