▎ 摘　　要

Hexagonal molybdenum trioxide (h-MoO3) microrods and their composites with graphite, graphene and graphene oxide (GO) are successfully synthesized by a soft chemistry route. The structural, compositional and electronic characteristics of the samples, investigated by a wide range of experimental techniques, evidence that the properties of the carbon material are preserved while yielding phase pure, highly crystalline oxide microstructures. h-MoO3 graphene and GO composites show excellent performance as Li ion batteries (LIBs) anodes. Precisely, h-MoO3 GO electrodes deliver a remarkable specific capacity of 789 mA h g(-1) after 100 cycles at a high current density of 10 0 0 mA g(-1) , while h-MoO3 graphene electrodes show an excellent stability at very high current densities, with specific capacities of 665 mA h g(-1) and 490 mA h g(-1) at 20 0 0 and 3000 mA g(-1). The uniformly dispersed graphene and GO layers increase the structural stability of the composites and create a conductive network ensuring effective ambipolar diffusion of electrons and Li+ ions, as revealed by electrochemical impedance spectroscopy measurements and scanning electron microscopy of the cycled electrodes. These results expand the potential applications of h-MoO3 composites towards LIBs, paving the way for future improvements in this energy storage field. (c) 2020 Elsevier Ltd. All rights reserved.