Highly reversible and ultra-fast lithium storage in mesoporous graphene-based TiO2/SnO2 hybrid nanosheets

Abstract

A facile and scalable step-wise approach has been developed to fabricate graphene-based TiO2/SnO2 hybrid nanosheets (TiO2@SnO2@GN). With uniform staggered distribution of rutile SnO2 and TiO2 nanocrystals in a 2D mesoporous manner, TiO2@SnO2@GN with low content of graphene (∼5 wt%) manifests superior reversible capacity and excellent rate capability as an anode material in lithium-ion batteries.