Interface-Controlled Phase Transformation and Corrosion Performance of Nb/NbN Multilayer Coatings for Bipolar Plates.
Proton exchange membrane water electrolysis (PEMWE) bipolar plates face a critical trade-off between corrosion resistance and interfacial electrical conductivity. To address this, Nb/NbN multilayer coatings with systematically varied interface densities were deposited on TA1 substrates via magnetron sputtering. Increas...