VO 2 ·0.26H 2 O nanobelts@reduced graphene oxides as cathode materials for high-performance aqueous zinc ion batteries

A simple microwave-assisted hydrothermal approach is adopted to synthesize VO ·0.26H O nanobelts@reduced graphene oxide (VO ·0.26H O@rGO), which is regarded as a promising cathode material for ZIBs. Compared to VO ·0.26H O, VO ·0.26H O@rGO has a large specific surface area and low charge transfer resistance, improving its electrochemical properties. The large lattice spacing, high capacitive Zn storage behavior, fast Zn transfer rate and stable structure are also responsible for the performance.