Hierarchical NiCo2O4/Bi2MoO6 Heterostructured Nanorod Arrays for High-Performance Supercapacitors

Ordered hierarchical NiCo2O4/Bi2MoO6 nanorod arrays directly grown on Ti foil are fabricated by a facile two-step hydrothermal reaction. The heterostructured electrode enables synergistic effect for excellent electrochemical properties. Moreover, this unique three-dimensional nanostructure not only promotes the electron transfer and ion diffusion but also provides good structure stability. As the binder-free electrode, hierarchical NiCo2O4/Bi2MoO6 nanorods show high capacitance (0.94 F cm(-2) at 5 mA cm(-2)) and good cycling stability (capacitance retention of 96.3%). (C) 2019 Elsevier B.V. All rights reserved.