Electronic modulation and surface reconstruction of cactus-like CoB2O4@FeOOH heterojunctions for synergistically triggering oxygen evolution reactions

Cactus-like hierarchical CoB 2 O 4 @FeOOH/NF enables the fast mass transfer, abundant accessible active sites and strong synergism induced by Fe–B bond for optimizing electrical conductivity and the generation of CoOOH for triggering OER processes.