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  • Proton Conduction in a Phos...
    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

    Journal of the American Chemical Society, 05/2016, Volume: 138, Issue: 20
    Journal Article

    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.