Operando Scanning Small-/Wide-Angle X-ray Scattering for Polymer Electrolyte Fuel Cells: Investigation of Catalyst Layer Saturation and Membrane Hydration– Capabilities and Challenges
Source abstract
Abstract
High Resolution Image Download MS PowerPoint Slide Polymer electrolyte fuel cells are an essential technology for future local emission-free mobility. One of the critical challenges for thriving commercialization is water management in the cells. We propose small- and wide-angle X-ray scattering as a suitable diagnostic tool to quantify the liquid saturation in the catalyst layer and determine the hydration of the ion-conducting membrane in real operating conditions. The challenges that may occur in operando data collection are described in detail─separation of the anode and cathode, cell alignment to the beam, X-ray radiation damage, and the possibility of membrane swelling. A synergistic development of experimental setup, data acquisition, and data interpretation circumvents the major challenges and leads to practical and reliable insights.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Fuel Cells and Related Materials · Electrocatalysts for Energy Conversion · Advancements in Solid Oxide Fuel Cells
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Electrochemistry Laboratory, Paul Scherrer Institut, CH-5232, Villigen, Switzerland
Photon Science Division, Swiss Light Source, Paul Scherrer Institut, CH-5232, Villigen, Switzerland
Chair of Technical Electrochemistry, Department of Chemistry and Catalysis Research Center, Technical University of Munich, Munich 80333, Germany
Department of Information Technology and Electrical Engineering, ETH Zurich, CH-8092 Zurich, Switzerland
Institute of Physics, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne 1015, Switzerland
Funding
Schweizerischer Nationalfonds zur F?rderung der Wissenschaftlichen Forschung · H2020 Marie Sklodowska-Curie Actions
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