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Graphene/MnO2 (GN/MnO2) composites have been facile synthesized via a liquid phase route. The results of the morphology reveal that MnO2 nanoparticles about 20 nm are will-dispersed on the surface of the graphene nanosheets. The stable structure, through promoting the interfacial electron and lithium ion transport, improve the electrochemical performance of GN/MnO2 with increasing 80% of the special capacity. The graphene in the composite accommodate volume change and increase electrical conductivity. Meanwhile the MnO2 nanoparticles prevent the stacking of the graphene sheets, maintaining the stability of the GN/MnO2 composites. So the stable characteristic structure by facile liquid phase route can be employed for other metal oxide composites of electrode or photocatalysis materials.

Facile Synthesis of MnO2 Nanoparticles Well-dispersed on Graphene for the Enhanced Electrochemical Performance