Target synthesis of dense C-coated ZnO for advanced lithium storage via a facile and cost-effective approach

摘要

Herein, ZnO@C composite is synthesized through a facile, time saving, and ecofriendly chemical vapor deposition approach. Very thin and dense carbon layer is well coated on the surface of ZnO nanoparticles. As anode, the ZnO@C composite delivers a high reversible lithiation capacity of 685 mA h g(-1)at 0.2 A g(-1)and good rate performance (still high as 225 mA h g(-1)at 5 A g(-1)) together with high initial Coulombic efficiency of similar to 72%, which are much better than that of bare ZnO.

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