Ni- and Co-based (oxy)hydroxides are promising candidates for oxygen evolution reaction (OER), but their limited specific surface area and poor intrinsic conductivity lead to unsatisfied OER activity. Herein, a unique and universal self-template strategy has been developed to fabricate Fe-incorporated CoNi (oxy)hydroxide (Fe-CoNi-OH) nanosheet-assembled nanorod arrays toward OER. The reorganized nanosheet-assembled nanorod hierarchical structure induced by Fe incorporation exposes more active sites and facilitates mass transfer. Furthermore, Fe...
