Electrochemical characterization and modeling of anode supported solid oxide fuel cell

Matti Noponen, Matias Halinen, Jari Kiviaho

    Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

    3 Citations (Scopus)


    A commercial 100 cm2 anode supported SOFC operated with hydrogen has been characterized under power generation using polarization and impedance measurements as well as modeling approaches. Both the experiments and simulations were made with three different flow rates and currents between 0 and 60 A at constant cell temperature of 750°C. The cell voltage was 0.85 V at 60 A in the case where the fuel and oxidant utilizations were 50%. Impedance measurements were used to determine the ionic conductivity of the electrolyte, which was 1.2 S m−1. Impedance measurements also revealed that the anode is the main contributor in the mass transfer limitations of the cell. The SOFC model presented here includes the electrochemical and adsorption reactions, gas phase mass transfer at the anode and cathode, and ionic conductance in the electrodes and electrolyte. The model had eight unknown variables describing the electrochemical activity of the cell, and the parameters could be fitted to correspond to the results well. The most sensitive parameter in the simulations appeared to be the electrochemical mass transfer coefficient of the anode.
    Original languageEnglish
    Title of host publicationSolid Oxide Fuel Cells (SOFC-IX)
    Subtitle of host publicationProceedings of the International Symposium
    PublisherElectrochemical Society ECS
    ISBN (Print)1-56677-465-9
    Publication statusPublished - 2005
    MoE publication typeA4 Article in a conference publication
    Event9th International Symposium on Solid Oxide Fuel Cells, SOFC-IX - Quebec City, Canada
    Duration: 15 May 200520 May 2005
    Conference number: 9

    Publication series

    SeriesECS Proceedings Volumes


    Conference9th International Symposium on Solid Oxide Fuel Cells, SOFC-IX
    Abbreviated titleSOFC-IX
    CityQuebec City


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