Electrochemical Phenomena in the Cathode Impedance Spectrum of PEM Fuel Cells: Fundamentals and Applications

Electrochemical Phenomena in the Cathode Impedance Spectrum of PEM Fuel Cells: Fundamentals and Applications establishes how the electrochemical and diffusion mechanisms of a polymer electrolyte membrane fuel cell (PEMFC) are related to electrochemical impedance spectroscopy (EIS) measurements using physics-based impedance models derived from fundamental electrode and diffusion theories. The contribution of the different phenomena occurring on the different layers comprising the cathode on the impedance response of the PEMFC is revealed through EIS-modelling analysis is included, along with the relationship between EIS measurements and polarization curves and the EIS response of the PEMFC changes at different operating conditions. Provides further understanding of ambiguities during the interpretation of the electrochemical impedance spectrum of the PEM fuel cell Includes impedance models written in MATLAB® for replication or application to other PEMFC-EIS measurements Includes diagrams of the different layers comprising the PEM fuel cells, the electro/diffusion pathways, flowcharts, mathematical models and real-world measured EIS data INDICE: Part I. Fundamentals of PEM Fuel Cells and EIS1. Introduction to Electrochemical Impedance Spectroscopy2. Fundamentals of PEM Fuel Cells3. Electrochemical Impedance Spectroscopy in PEM Fuel CellsPart II. Modelling4. Impedance Model of the Cathode Catalyst Layer5. Impedance model of the Cathode Electrode6. Inductive loops at low frequencies of the impedance spectrumPart III. Modelling Application7. Electrochemical phenomena represented in the cathodic impedance spectrum8. Performance analysis in the individual cells of a PEMFC stack through an EIS-Modelling ApproachAppendix.A.1 Fast Fourier algorithm for validation of EIS data, (Chapter 3)A.2 Graphic user interface in Matlab® to fit the PEMFC impedance model with EIS measurements (Chapters 7 and 8)

• ISBN: 978-0-323-90607-4
• Editorial: Elsevier
• Encuadernacion: Rústica
• Páginas: 275
• Fecha Publicación: 01/06/2022
• Nº Volúmenes: 1
• Idioma: Inglés