Ba–Ni–Ge Clathrate Transformation Maximizes Active Site Utilization of Nickel for Enhanced Oxygen Evolution Performance. - Chen, Ziliang; Yang, Hongyuan; Hausmann, J. Niklas; Mebs, Stefan; Hlukhyy, Viktor; Dau, Holger; Driess, Matthias; Menezes, Prashanth W. (Angewandte Chemie International Edition, 2025)