Fuel Cell Electrode Characterization Using Neutron Scattering

Materials, vol. 13, pp. 1474

Abstract

Electrochemical energy conversion and storage is key for the use of regenerative energies at large scale. A thorough understanding of the individual components, such as the ion conducting membrane and the electrode layers, can be obtained with scattering techniques on atomic to molecular length scales. The largely heterogeneous electrode layers of High-Temperature Polymer Electrolyte Fuel Cells are studied in this work with small- and wide-angle neutron scattering at the same time with the iMATERIA diffractometer at the spallation neutron source at J-PARC, opening a view on structural properties on atomic to mesoscopic length scales. Recent results on the proton mobility from the same samples measured with backscattering spectroscopy are put into relation with the structural findings.

Authors 9

1. Olaf Holderer corresponding

   Forschungszentrum Jülich · Heinz Maier-Leibnitz Zentrum

   Affiliation as printed

   Forschungszentrum Jülich, Jülich Centre for Neutron Science (JCNS) at MLZ, 85747 Garching, Germany

2. Marcelo Carmo

   Forschungszentrum Jülich

   Affiliation as printed

   Forschungszentrum Jülich, Institute of Energy and Climate Research, IEK-14: Electrochemical Process Engineering, 52425 Jülich, Germany

3. Meital Shviro

   Forschungszentrum Jülich

   Affiliation as printed

   Forschungszentrum Jülich, Institute of Energy and Climate Research, IEK-14: Electrochemical Process Engineering, 52425 Jülich, Germany

4. Werner Lehnert Aachen Faculty of Mechanical Engineering

   Forschungszentrum Jülich · RWTH Aachen University

   Affiliation as printed

   Faculty of Mechanical Engineering, RWTH Aachen University, 52062 Aachen, Germany

   Forschungszentrum Jülich, Institute of Energy and Climate Research, IEK-14: Electrochemical Process Engineering, 52425 Jülich, Germany

5. Yohei Noda

   Ibaraki University

   Affiliation as printed

   Ibaraki University, D302 IQBRC 162-1, Shirakata, Tokai-mura, Naka-gun, Ibaraki 305-8577, Japan

6. Satoshi Koizumi

   Ibaraki University

   Affiliation as printed

   Ibaraki University, D302 IQBRC 162-1, Shirakata, Tokai-mura, Naka-gun, Ibaraki 305-8577, Japan

7. Marie‐Sousai Appavou

   Forschungszentrum Jülich · Heinz Maier-Leibnitz Zentrum

   Affiliation as printed

   Forschungszentrum Jülich, Jülich Centre for Neutron Science (JCNS) at MLZ, 85747 Garching, Germany

8. Marina Appel

   Forschungszentrum Jülich · Heinz Maier-Leibnitz Zentrum

   Affiliation as printed

   Forschungszentrum Jülich, Jülich Centre for Neutron Science (JCNS) at MLZ, 85747 Garching, Germany

9. Henrich Frielinghaus

   Forschungszentrum Jülich · Heinz Maier-Leibnitz Zentrum

   Affiliation as printed

   Forschungszentrum Jülich, Jülich Centre for Neutron Science (JCNS) at MLZ, 85747 Garching, Germany