Fig. 2: Durability test and activity evaluation.
From: Self-replenishing Ni-rich stainless-steel electrode toward oxygen evolution reaction at ampere-level

a Durability test in a three-electrode system at 1000 mA cm–2, around 22 °C in 1 M KOH electrolyte. b LSV curves and (c) Nyquist plots of pristine, activated, and post-1000 h SS electrodes. d ECSA measurement and (e) normalized LSV curves based on the ECSA of pristine, activated, and post-1000 h SS electrodes.