Hybrid nanostructures integrating electroactive materials with functional species, such as MOFs, COFs, complex, graphdiyne, carbon etc., are of great significance for both fundamental research and energy conversion/storage applications. Herein, hierarchical triple-layered nanotube arrays, which consist of hydrogen substituted graphdiyne (HsGDY) frameworks seamlessly sandwiched between an outer layer of Ni, Co co-doped MoS₂ nanosheets and an inner layer of mixed NiCoS (Co₉S₈, Ni₃S₂), are directly fabricated on a conductive carbon paper. The elaborate triple-layered structure is demonstrated a decent hybrid electrode for energy conversion and storage, in which the organic HsGDY middle layer with a large π-conjugation system between the electroactive nanomaterials provides built-in electron and ion channels and is crucial for performance enhancement. The tri-layered structure provides a promising platform for advanced nanostructure-engineering of hierarchical multilayered nanostructures towards a wide range of electrochemical applications. 

This work was highlighted by KAUST Discovery.​