ZnO-CuO porous hybrid microspheres were successfully produced through a facile aging process of zinc citrate solid microspheres in copper sulfate solution combined with the subsequent annealing treatment in air atmosphere.The electrochemical performance investigation suggests that the harvested ZnO-CuO porous hybrid microspheres illustrate much higher specific capacity and better cycling stability than single ZnO counterparts.A reversible capacity of 585 mAh.g-1 can be acquired for ZnO-CuO porous hybrid microspheres after cycling 500 times at a current density of 200 mA·g-1.The porous configuration and the incorporation of CuO are responsible for the enhanced lithium storage properties of ZnO-CuO hybrids.
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