The recently published articles address degradation mechanisms of an anode-co-catalyst material at transient operation conditions (e.g. start-up/shut-down cycles) as well as reaction kinetics of the hydrogen oxidation and hydrogen evolution reaction in a so-called hydrogen pump.
Both publications are open and free accessible.
Pressure and Temperature Dependence of the Hydrogen Oxidation and Evolution Reaction Kinetics on Pt Electrocatalysts via PEMFC-based Hydrogen-Pump Measurements / Björn M. Stühmeier, Markus R. Pietsch, Jan N. Schwämmlein, Hubert A. Gasteiger / Journal of The Electrochemical Society 168 (2021) 064516 (DOI: https://doi.org/10.1149/1945-7111/ac099c)
Degradation Mechanism of an IrO2 Anode Co-Catalyst for Cell Voltage Reversal Mitigation under Transient Operation Conditions of a PEM Fuel Cell / Mohammad Fathi Tovini, Ana Marija Damjanovic, Hany A. El-Sayed, Jozsef Speder, Christian Eickes, Jens-Peter Suchsland, Alessandro Ghielmi, Hubert A. Gasteiger / Journal of The Electrochemical Society 168 (2021) 064521 (DOI: https://doi.org/10.1149/1945-7111/ac0d39)