Unlocked Covalent Competition in Asymmetric La/Sr‐O‐Fe Motif Activates Lattice Oxygen for Selective Methane Oxidation
Controlling lattice‐oxygen reactivity in transition‐metal (TM) oxides is essential for Mars‐van Krevelen selective oxidations, yet conventional strategies that tune TM 1 ‐O‐TM 2 bridges suffer from covalent competition between adjacent redox‐active cations, which generates site heterogeneity and degrades select...