Atomic‐Scale Mott–Schottky Analogy in SnCu Nanoalloy Promote High‐Efficiency Urea Electrosynthesis at Ultralow Potential

co-adsorption and *CO coverage, while steering reaction pathway toward *CO-*NHO coupling and suppressing hydrogen evolution, thereby reducing rate-determining step energy barrier and prioritizing C-N coupling. This work develops a structure-adsorption-reactivity framework, providing fundamental guidance for advanced urea electrocatalyst design.