Chen, S.; Liang, X.; Hu, S.; Li, X.; Zhang, G.; Wang, S.; Ma, L.; Wu, C. L.; Zhi, C.; Zapien, J. A. Inducing Fe 3d Electron Delocalization and Spin-State Transition of FeN4 Species Boosts Oxygen Reduction Reaction for Wearable Zinc–Air Battery. Nano-Micro Lett 2023, 15, 47.