Proton Conduction in a Phosphonate-Based Metal–Organic Framework Mediated by Intrinsic “Free Diffusion inside a Sphere”

[Image: see text] 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...

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Detalles Bibliográficos
Autores principales: Pili, Simona, Argent, Stephen P., Morris, Christopher G., Rought, Peter, García-Sakai, Victoria, Silverwood, Ian P., Easun, Timothy L., Li, Ming, Warren, Mark R., Murray, Claire A., Tang, Chiu C., Yang, Sihai, Schröder, Martin
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2016
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4882730/
https://www.ncbi.nlm.nih.gov/pubmed/27182787
http://dx.doi.org/10.1021/jacs.6b02194
Descripción
Sumario:[Image: see text] 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.

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