Abstract
A three-dimensional (3D) graphene interconnected network coupled with uniformly dispersed α-Fe2O3 nanorings (α-Fe2O3@GA) was designed by a simple hydrothermal self-assembly strategy and was used as anode material for lithium-ion batteries (LIBs). The α-Fe2O3@GA composites delivered a reversible capacity of 1288 mA h g−1 over 100 cycles at 100 mA g−1 and excellent rate performance than those of pure α-Fe2O3, owing to the synergetic effect of hollow α-Fe2O3 nanorings and inherent 3D porous graphene aerogels. In virtue of their superior lithium storage performance, the α-Fe2O3@GA composites will be promising lithium-ion battery anode materials. Moreover, this study provides a versatile route to synthesis other 3D graphene aerogel-based transitional metal oxide materials for commercial applications in lithium-ion batteries.
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