基于内在“球体内部自由扩散”的膦酸酯基金属有机骨架中的质子传导
Proton Conduction in a Phosphonate-Based Metal-Organic Framework Mediated by Intrinsic "Free Diffusion inside a Sphere".
机构信息
School of Chemistry, University of Manchester , Oxford Road, Manchester M13 9PL, U.K.
School of Chemistry, University of Nottingham , University Park, Nottingham NG7 2RD, U.K.
出版信息
J Am Chem Soc. 2016 May 25;138(20):6352-5. doi: 10.1021/jacs.6b02194. Epub 2016 May 16.
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.
了解质子传导的分子机制对于设计具有更高电导率的新型材料至关重要。准弹性中子散射（QENS）已被用于探测新型膦酸酯基金属有机骨架（MOF）材料 MFM-500（Ni）中质子扩散的机制。QENS 表明，MFM-500（Ni）的质子电导率（在 98%相对湿度和 25°C 时为 4.5×10(-4) S/cm）是由固有“球体内部自由扩散”介导的，这代表了在 MOFs 中首次观察到这种机制的例子。
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