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Photometric Method to Determine Membrane Degradation in Polymer Electrolyte Fuel Cells

Author

Listed:
  • Mathias Heidinger

    (Institute of Chemical Engineering and Environmental Technology, Graz University of Technology, Inffeldgasse 25/C, 8010 Graz, Austria)

  • Eveline Kuhnert

    (Institute of Chemical Engineering and Environmental Technology, Graz University of Technology, Inffeldgasse 25/C, 8010 Graz, Austria)

  • Kurt Mayer

    (Institute of Chemical Engineering and Environmental Technology, Graz University of Technology, Inffeldgasse 25/C, 8010 Graz, Austria)

  • Daniel Sandu

    (AiDEXA GmbH, Bergmanngasse 45 T10, 8010 Graz, Austria)

  • Viktor Hacker

    (Institute of Chemical Engineering and Environmental Technology, Graz University of Technology, Inffeldgasse 25/C, 8010 Graz, Austria)

  • Merit Bodner

    (Institute of Chemical Engineering and Environmental Technology, Graz University of Technology, Inffeldgasse 25/C, 8010 Graz, Austria)

Abstract

A new method for measuring membrane degradation in polymer electrolyte fuel cells (PEFCs) is proposed. The method is based on the detection of fluoride ions in effluent water from the cathode- and anode outlet of the PEFC using photometry (PM). The fluoride emission rate (FER) is an indicator of the membrane’s state of health (SoH) and can be used to measure the chemical membrane degradation. Commercial catalyst-coated membranes (CCMs) have been tested at 80 °C and 90 °C at 30% relative humidity (RH) to investigate the reliability of the developed method for fuel cell effluent samples. To verify the measurement, a mean-difference plot was created by measuring the same data with a fluorine selective electrode. The average difference was at ±0.13 nmol h −1 cm −2 , which indicates good agreement between the two methods. These new findings imply that PM is a promising method for quick and simple assessment of membrane degradation in PEM technology.

Suggested Citation

  • Mathias Heidinger & Eveline Kuhnert & Kurt Mayer & Daniel Sandu & Viktor Hacker & Merit Bodner, 2023. "Photometric Method to Determine Membrane Degradation in Polymer Electrolyte Fuel Cells," Energies, MDPI, vol. 16(4), pages 1-12, February.
    • Handle: RePEc:gam:jeners:v:16:y:2023:i:4:p:1957-:d:1070231
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    References listed on IDEAS

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    1. Qingyu Luo & Tianyao Zheng & Wenjing Wu & Hongfei Jia & Jin Li, 2018. "Modeling the effect of bus stops on capacity of curb lane," International Journal of Modern Physics C (IJMPC), World Scientific Publishing Co. Pte. Ltd., vol. 29(03), pages 1-20, March.
    2. Chu, Tiankuo & Tang, Qianwen & Wang, Qinpu & Wang, Yanbo & Du, Hong & Guo, YuQing & Li, Bing & Yang, Daijun & Ming, Pingwen & Zhang, Cunman, 2023. "Experimental study on the effect of flow channel parameters on the durability of PEMFC stack and analysis of hydrogen crossover mechanism," Energy, Elsevier, vol. 264(C).
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