The aim of this work is to introduce a high performance cathode for magnesium-ion batteries.
TiO2/reduced graphene oxide (rGO) composites were mixed in ball mill. The samples are characterized
using XRD and SEM. The spex-milled composites exhibit better electrochemical performance
with higher reversible capacity and excellent cyclability. The excellent electrochemical
performance of TiO2/rGO composites is due to their unique structures, which intimately combine
the conductive graphene nanosheets network with TiO2 nanoparticles and possess the characteristic
parallel channels running along the [010] orientation, which allow easy Mg2+ transport. It
was found that layered TiO2 and rGO nanosheets in the composite interlace with each other to
form novel sandwich-structured microspheres, which exhibit preferable electrochemical performance
in rechargeable Mg batteries.