Overcoming the *H‐NO x Coupling Bottleneck via Palladium‐Enabled Relay Catalysis on CuCo2O4 Toward Ampere‐Level Nitrate‐to‐Ammonia
ABSTRACT Electrocatalytic nitrate reduction reaction (NO3RR) represents a sustainable route for both ammonia (NH3) production and nitrate‐contaminated water remediation, yet its practical application is crippled by the kinetically sluggish multi‐electron/proton transfer and insufficient targeted active hydrogen (*H) su...