(173d) A Facile Way to Fabricate MoO3 /Graphene Composite Anode for Lithium Ion Battery

A Facile Way to Fabricate MoO₃ /Graphene Composite Anode for Lithium Ion Battery

Yun Xu, Qianglu Lin, Ling Fei, Joshua Hill, Shuguang Deng, Hongmei Luo

Department of Chemical Engineering, New Mexico State University, Las Cruces, New Mexico 88003

MoO₃ is capable of Li­⁺ insertion/extraction in excess of 6 Li­⁺ per formula unit, resulting in a significantly reversible capacity. Recently, chemically modified graphene materials have been used to form hybrid materials with SnO₂, Fe₂O₃, and Mn₃O₄ in attempts to improve electrode capacity and cycling stability. However, an anode combining MoO₃ with graphene has never been reported. MoO₃/graphene composite was prepared through a facile two-step synthesis by homogeneous coprecipitation and subsequent reduction of the graphite oxide with hydrazine. The synergic effect of graphene and MoO₃ improves the electrochemical properties, like cycling performance and rate capability. SEM and TEM images show that MoO₃ uniformly dispersed on the surface of graphene. The synthesis approach presents a promising route to produce large amount of high performance electrode materials for Lithium ion batteries.