Photometric Method to Determine Membrane Degradation in Polymer Electrolyte Fuel Cells

Mathias Heidinger, Eveline Kuhnert, Kurt Mayer, Daniel Sandu, Viktor Hacker*, Merit Bodner

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


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.
Original languageEnglish
Article number1957
Issue number4
Publication statusPublished - 16 Feb 2023

Fields of Expertise

  • Mobility & Production
  • Advanced Materials Science


Dive into the research topics of 'Photometric Method to Determine Membrane Degradation in Polymer Electrolyte Fuel Cells'. Together they form a unique fingerprint.

Cite this