A one-pot thermal decomposition of C4H4ZnO6 to ZnO@carbon composite for lithium storage

Publication date: 15 August 2017
Source:Journal of Alloys and Compounds, Volume 714
Author(s): Denghu Wei, Zhijun Xu, Jie Wang, Yuanwei Sun, Suyuan Zeng, Wenzhi Li, Xiaona Li
Zinc oxide nanoparticles embedded in carbon framework (ZnO@C) were synthesized through a one-pot thermal decomposition of C4H4ZnO6 served as the precursor for both ZnO and carbon. As an anode material for lithium-ion batteries, the ZnO@C composite delivers a reversible capacity of 680 mAh g⁻¹ at a current density of 1 A g⁻¹, and remains the capacity at 610 mAh g⁻¹ even after 300 cycles. Such a good performance could be attributed to the existence of the carbon, which can act as a scaffold for ZnO nanoparticles not only enhancing conductivity, but also relieving volume changes of the electrode during lithiation and delithiation processes. The obtained ZnO@C composite may be found use in other applications in the fields of solar cells, gas sensors, optoelectronic devices, and Zn/Ni secondary batteries.



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