Tip-effect-induced water dissociation on dendritic Bi–Cu catalysts boosts electrochemical CO2 reduction to formate
Abstract
Electrochemical CO2 reduction to formate is hindered by insufficient water dissociation kinetics at high reaction rates. Herein, the morphology-induced tip effects serve as an intrinsic strategy for enhancing water activation without external modifications, enabling efficient formate production with 94.9% faradaic efficiency and a partial current density of −104.2 mA cm−2.