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

DOI: 10.1021/jacs.6b02194 DOI Help

Authors: Simona Pili (University of Manchester) , Stephen Argent (University of Nottingham) , Christopher Morris (University of Manchester) , Peter Rought (University of Manchester) , Victoria García-Sakai (ISIS Pulsed Neutron and Muon Source) , Ian Silverwood (University College London (UCL); ISIS Pulsed Neutron and Muon Source) , Timothy Easun (University of Nottingham) , Ming Li (University of Nottingham) , Mark Warren (Diamond Light Source) , Claire Murray (Diamond Light Source) , Chiu Tang (Diamond Light Source) , Sihai Yang (University of Nottingham) , Martin Schroeder (University of Manchester)
Co-authored by industrial partner: No

Type: Journal Paper
Journal: Journal Of The American Chemical Society

State: Published (Approved)
Published: May 2016

Open Access Open Access

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.

Journal Keywords: Diffusion; Molecules; Metal organic frameworks; Proton conductivity; Materials

Diamond Keywords: Fuel Cells

Subject Areas: Chemistry, Materials, Energy

Instruments: I11-High Resolution Powder Diffraction , I19-Small Molecule Single Crystal Diffraction

Added On: 22/05/2016 18:52


Discipline Tags:

Energy Storage Energy Chemistry Materials Science Metal-Organic Frameworks Metallurgy Organometallic Chemistry

Technical Tags:

Diffraction Single Crystal X-ray Diffraction (SXRD) X-ray Powder Diffraction