In-Situ Synthesis of Fe2O3 Nanospheres/Co3O4 Nanowires-Connected Reduced Graphene Oxide Hybrid Networks for High-Performance Energy Storage Device

Abstract

Three–dimensional (3D) hybrid networks consisted of reduced graphene oxide (rGO) sheets interconnected by Co3O4 nanowires (rGO/Co3O4), followed by decoration of Fe2O3 nanospheres (NSs) , were demonstrated by a facile hydrothermal method, with which the rGO/Co3O4 networks were acted as nucleation sites for the in-situ synthesis of Fe2O3 NSs. The intimate contacts between rGO, Co3O4 NWs and Fe2O3 NSs resulting in an excellent conductive behavior and unique structure. Hence, the rGO/Co3O4@Fe2O3 hybrid networks exhibit a high capacity of 243.1 mAh·g–1 at the current density of 1 A·g–1. Figure 1