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Facile synthesis of magnesiated alpha-MoO3 and its electrochemical performance in Li-ion batteries.

A facile approach has been developed for the synthesis of layered structure of magnesiated alpha-MoO3 based on the precipitation reaction, in which alpha-MoO3 nanoneedles were prepared as intermediates. The layered magnesiated alpha-MoO3 has been characterized by X-ray powder diffraction (XRD) and scanning electron microscopy (SEM). And the electrochemical performance as cathode materials in Li-ion battery shows that the magnesiated alpha-MoO3 had a capacity of 300 mAh x g(-1) at the first discharge and a fairly good cycle performance at the current density of 200 mA x g(-1). The great improvement indicates that the magnesiation method is an effective way to enhance electrochemical performance for the layered cathode materials.