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Enhancement of Oxygen Reduction and Mitigation of Ionomer Dry-Out Using Insoluble Heteropoly Acids in Intermediate Temperature Polymer-Electrolyte Membrane Fuel Cells

Author

Listed:
  • Alessandro Stassi

    (CNR-ITAE Institute of Advanced Energy Technologies "Nicola Giordano", Via Salita S. Lucia sopra Contesse 5, 98126 Messina, Italy)

  • Irene Gatto

    (CNR-ITAE Institute of Advanced Energy Technologies "Nicola Giordano", Via Salita S. Lucia sopra Contesse 5, 98126 Messina, Italy)

  • Ada Saccà

    (CNR-ITAE Institute of Advanced Energy Technologies "Nicola Giordano", Via Salita S. Lucia sopra Contesse 5, 98126 Messina, Italy)

  • Vincenzo Baglio

    (CNR-ITAE Institute of Advanced Energy Technologies "Nicola Giordano", Via Salita S. Lucia sopra Contesse 5, 98126 Messina, Italy)

  • Antonino S. Aricò

    (CNR-ITAE Institute of Advanced Energy Technologies "Nicola Giordano", Via Salita S. Lucia sopra Contesse 5, 98126 Messina, Italy)

Abstract

The use of Cs 0.5 H 0.5 PW 12 O 40 insoluble salt as a superacid promoter in the catalyst layer of a polymer electrolyte membrane fuel cell (PEMFC) has been investigated. An increase of performance has been recorded at intermediate temperatures (110–130 °C) and under low relative humidity (R.H.). The promoter appears to mitigate the ionomer dry-out effects in the catalytic layer and produces an increase of the extent of the catalyst-electrolyte interface as demonstrated by cyclic voltammetry analysis. These effects are also corroborated by a significant decrease of polarization resistance at intermediate temperatures. Such characteristics have been demonstrated for a conventional membrane-electrode assembly based on a Pt-Co alloy and a Nafion 115 membrane.

Suggested Citation

  • Alessandro Stassi & Irene Gatto & Ada Saccà & Vincenzo Baglio & Antonino S. Aricò, 2015. "Enhancement of Oxygen Reduction and Mitigation of Ionomer Dry-Out Using Insoluble Heteropoly Acids in Intermediate Temperature Polymer-Electrolyte Membrane Fuel Cells," Energies, MDPI, vol. 8(8), pages 1-13, July.
    • Handle: RePEc:gam:jeners:v:8:y:2015:i:8:p:7805-7817:d:53402
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    References listed on IDEAS

    as
    1. Mengbo Ji & Zidong Wei, 2009. "A Review of Water Management in Polymer Electrolyte Membrane Fuel Cells," Energies, MDPI, vol. 2(4), pages 1-50, November.
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    1. Alegre, Cinthia & Lozano, Antonio & Manso, Ángel Pérez & Álvarez-Manuel, Laura & Marzo, Florencio Fernández & Barreras, Félix, 2019. "Single cell induced starvation in a high temperature proton exchange membrane fuel cell stack," Applied Energy, Elsevier, vol. 250(C), pages 1176-1189.
    2. Devin Fowler & Vladimir Gurau & Daniel Cox, 2019. "Bridging the Gap between Automated Manufacturing of Fuel Cell Components and Robotic Assembly of Fuel Cell Stacks," Energies, MDPI, vol. 12(19), pages 1-14, September.

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