Quantum confinement for stable nickel catalyst in hydrogen oxidation

The quest for low-cost, Earth-abundant catalysts for hydrogen oxidation reactions (HORs) in anion-exchange membrane fuel cells (AEMFCs) has led to significant advancements in recent years, yet challenges pertaining to the stability of non-platinum-group metal catalysts operational conditions still remain. The study by Zhou et al. in Nature Energy presents an innovative approach to enhance the stability and performance of nickel (Ni) catalysts for the HOR by using quantum confinement effects to suppress Ni oxidation. This research not only addresses surface passivation of Ni-based catalysts but also unlocks new possibilities for designing advanced catalysts for energy conversion technologies.