Understanding the performance losses and “invasiveness” of in situ characterization steps during carbon corrosion experiments in polymer electrolyte membrane fuel cells

Carbon corrosion represents one of the most critical degradation mechanisms within state-of-the-art polymer electrolyte membrane fuel cells. Its most prominent consequences include the loss of electrochemical active surface area (ECSA), porosity, and electrical contact within the electrode. The present study seeks a detailed understanding of the dependence between the polarization performance losses and the individual loss terms, both as a...