Interface engineering has emerged as a promising strategy for efficiently enhancing catalytic performance. Herein, we present a built-in electric field (BEF) strategy to assemble Co 9 S 8 /Ni 3 S 2 heterojunctions confined in S-doped carbon matrix (SC) and anchored S-doped carbide wood framework (SCW). Leveraging BEF, Co-S-Ni charge transfer channels and the superior mass transfer properties inherent in wood’s unique structure, (Co 9 S 8 /Ni 3 S 2 )@SC/SCW exhibits a low overpotential of 220 mV at 50 mA cm −2 , and remarkable stability. Th...
