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Progress in neutron techniques: towards improved polymer electrolyte membranes for energy devices.

Foglia, F; Lyonnard, S; Garcia Sakai, V; Berrod, Q; Zanotti, J-M; Gebel, G; Clancy, A; (2021) Progress in neutron techniques: towards improved polymer electrolyte membranes for energy devices. Journal of Physics: Condensed Matter , 33 (26) , Article 264005. 10.1088/1361-648X/abfc10. Green open access

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Abstract

Design and implementation of advanced membrane formulations for selective transport of ions and molecular species are critical for creating the next generations of fuel cells and separation devices. It is necessary to understand the detailed transport mechanisms over time- and length-scales relevant to the device operation, both in laboratory models and in working systems under realistic operational conditions. Neutron scattering techniques including quasi-elastic neutron scattering (QENS), reflectivity (NR) and imaging (NI) are implemented at beamline stations at reactor and spallation source facilities worldwide. With the advent of new and improved instrument design, detector methodology, source characteristics and data analysis protocols, these neutron scattering techniques are emerging as a primary tool for research to design, evaluate and implement advanced membrane technologies for fuel cell and separation devices. Here we describe these techniques and their development and implementation at the ILL reactor source (Institut Laue-Langevin, Grenoble, France) and ISIS Neutron and Muon Spallation source (Harwell Science and Technology Campus, UK) as examples. We also mention similar developments under way at other facilities worldwide, and describe approaches such as combining optical with neutron Raman scattering and X-ray absorption with neutron imaging and tomography, and carrying out such experiments in specialised fuel cells designed to mimic as closely possible actual operando conditions. These experiments and research projects will play a key role in enabling and testing new membrane formulations for efficient and sustainable energy production/conversion and separations technologies.

Type: Article
Title: Progress in neutron techniques: towards improved polymer electrolyte membranes for energy devices.
Location: England
Open access status: An open access version is available from UCL Discovery
DOI: 10.1088/1361-648X/abfc10
Publisher version: https://doi.org/10.1088/1361-648X/abfc10
Language: English
Additional information: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
Keywords: QENS, fuel cell, membranes, neutron scattering, reflectivity, separation
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Chemistry
URI: https://discovery.ucl.ac.uk/id/eprint/10128547
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