▎ 摘　　要

alpha-Fe2O3 nanorod/reduced graphene oxide nanosheet composites (denoted as alpha-Fe2O3@r-GO NRAs) are fabricated by using a facile and scalable seed-assisted hydrothermal growth route, in which the alpha-Fe2O3 nanorods are assembled onto the side surfaces of r-GO nanosheets. Such alpha-Fe2O3@ r-GO hybrid nanostructures are tested as anodes for both Li-ion and Na-ion batteries (LIBs and SIBs), which exhibit excellent performance with high capacity and long-cycling stability. When used for LIBs, the hybrid alpha-Fe2O3@ r-GO NRAs electrode exhibits a highly stable Li+ storage capacity of 1200 mA h g(-1) after 500 cycles at 0.2C and excellent rate capability. Moreover, the hybrid alpha-Fe2O3@ r-GO NRAs also display their versatility as an anode for SIBs, which delivers high reversible Na+ storage capacity of 332 mA h g (1) at 0.2C over 300 cycles with long-term cycling stability. The excellent electrochemical performance of the hybrid alpha-Fe2O3@ r-GO NRAs anodes could be ascribed to the synergistic effect between the a-Fe2O3 nanorod arrays and reduced graphene oxide nanosheets, which could availably promote the charge transport and accommodate the volume change upon the long-term charge-discharge process for reversible Li+ or Na+ storage.