Modeling of low-temperature fuel cell electrodes using non-precious metal catalysts

Nathaniel D. Leonard, Kateryna Artyushkova, Barr Halevi, Alexey Serov, Plamen Atanassov, Scott Calabrese Barton

    Research output: Contribution to journalArticle

    • 10 Citations

    Abstract

    An electrode-scale, transport model for a proton-exchange-membrane fuel cell (PEMFC) cathode is presented. The model describes the performance of non-precious metal catalysts for the oxygen reduction reaction in a fuel cell context. Because of its relatively high thickness, emphasis is placed on phenomena occurring in the cathode layer. Water flooding is studied in terms of its impact on gas-phase transport and on electrochemically accessible surface area (ECSA). Although cathode performance in both air and oxygen are susceptible to ECSA loss, gas diffusion limitations at high current density in air are more significant. In oxygen, catalyst utilization at high current density is primarily limited by conductivity. For this reason, air fuel cell data is recommended over oxygen data for characterizing catalyst performance. Due to both ohmic and mass transport limitations, increased loading of low-cost catalysts does not necessarily lead to higher performance. Therefore, careful optimization of catalyst layer thickness is required.

    Original languageEnglish (US)
    Pages (from-to)F1253-F1261
    JournalJournal of the Electrochemical Society
    Volume162
    Issue number10
    DOIs
    StatePublished - 2015

    Profile

    catalysts
    Catalysts
    Afferent Loop Syndrome
    fuel cells
    oxygen
    Oxygen
    air
    Fuel cells
    Cathodes
    Air
    Amoxapine
    Coumestrol
    high current
    cathodes
    current density
    electrodes
    metals
    Current density
    Electrodes
    Metals

    ASJC Scopus subject areas

    • Electrochemistry
    • Electronic, Optical and Magnetic Materials
    • Materials Chemistry
    • Surfaces, Coatings and Films
    • Renewable Energy, Sustainability and the Environment
    • Condensed Matter Physics

    Cite this

    Leonard, N. D., Artyushkova, K., Halevi, B., Serov, A., Atanassov, P., & Barton, S. C. (2015). Modeling of low-temperature fuel cell electrodes using non-precious metal catalysts. Journal of the Electrochemical Society, 162(10), F1253-F1261. DOI: 10.1149/2.0311510jes

    Modeling of low-temperature fuel cell electrodes using non-precious metal catalysts. / Leonard, Nathaniel D.; Artyushkova, Kateryna; Halevi, Barr; Serov, Alexey; Atanassov, Plamen; Barton, Scott Calabrese.

    In: Journal of the Electrochemical Society, Vol. 162, No. 10, 2015, p. F1253-F1261.

    Research output: Contribution to journalArticle

    Leonard, ND, Artyushkova, K, Halevi, B, Serov, A, Atanassov, P & Barton, SC 2015, 'Modeling of low-temperature fuel cell electrodes using non-precious metal catalysts' Journal of the Electrochemical Society, vol 162, no. 10, pp. F1253-F1261. DOI: 10.1149/2.0311510jes
    Leonard ND, Artyushkova K, Halevi B, Serov A, Atanassov P, Barton SC. Modeling of low-temperature fuel cell electrodes using non-precious metal catalysts. Journal of the Electrochemical Society. 2015;162(10):F1253-F1261. Available from, DOI: 10.1149/2.0311510jes

    Leonard, Nathaniel D.; Artyushkova, Kateryna; Halevi, Barr; Serov, Alexey; Atanassov, Plamen; Barton, Scott Calabrese / Modeling of low-temperature fuel cell electrodes using non-precious metal catalysts.

    In: Journal of the Electrochemical Society, Vol. 162, No. 10, 2015, p. F1253-F1261.

    Research output: Contribution to journalArticle

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