One‐Step Synthesis of NiCo‐LDH@Ni(OH)2 Heterostructure Foams on Biomass‐Derived Porous Carbon for High‐Performance Supercapacitors

Layered double hydroxides (LDHs) have attracted much attention as pseudocapacitor supercapacitor electrodes because of their high theoretical specific capacity. However, LDHs have drawbacks such as poor electrical conductivity, and their specific capacities are lower than the theoretical values. In this work, NNCLDH@OPC electrodes are constructed via in situ synthesis of heterostructure foams (NNCLDH) consisting of NiCo-LDH and Ni(OH)