Bio-Inspired Leaf-Mimicking Nanosheet/Nanotube Heterostructure as a Highly Ef…

Plant leaves represent a unique 2D/1D heterostructure for enhanced surface reaction and effi cient mass transport. Inspired by plant leaves, a 2D/1D CoO x heterostructure is developed that is composed of ultrathin CoO x nanosheets further assembled into a nanotube structure. This bio-inspired architecture allows a highly active Co 2+ electronic structure for an effi cient oxygen evolution reac…