Interlayer Electronic Coupling Breaks the *OH Desorption Limitation in Single-Atom Oxygen Reduction Catalysts

Zn, and long-term cycling stability, surpassing commercial 20 wt % Pt/C. This work identifies interlayer electronic coupling as an orthogonal design dimension to conventional coordination engineering, enabling access to reaction energetics that are intrinsically inaccessible in planar single-atom catalysts.