Abstract
In the work, an in situ chemical synthesis approach has been developed to fabricate SnO2/reduced graphene oxide nanocomposites in ethanol solution. X-ray diffraction, x-ray photoelectron, Fourier transform infrared and Raman spectrum revealed the formation of SnO2/reduced graphene oxide nanocomposites. Scanning electron microscopy and transmission electron microscopy showed that SnO2 nanoparticles had a crystal size of about 3–4 nm and homogeneously distributed on reduced graphene oxide matrix. The electrochemical performances of the SnO2/reduced graphene oxide nanocomposites as anode materials were measured by the galvanostatic charge/discharge cycling. The results indicated that as-synthesized SnO2/reduced graphene oxide nanocomposites had a reversible lithium storage capacity of 1051 mAh/g and an enhanced cyclability, which can be attributed to increased electrode conductivity and buffer effect to volume change in the presence of a percolated reduced graphene oxide network embedded into the metal oxide electrodes.
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ACKNOWLEDGMENTS
The work was supported by the Natural Science Foundation of China (61174011, 11275121, 21241002, and 21371116), Innovation Program of Shanghai Municipal Education Commission (12YZ013), Key Laboratory of Nanodevices and Applications, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences (12CS02), and State Key Laboratory of Pollution Control and Resource Reuse Foundation, Tongji University (PCRRF12003).
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Zhang, H., Xu, P., Ni, Y. et al. In situ chemical synthesis of SnO2/reduced graphene oxide nanocomposites as anode materials for lithium-ion batteries. Journal of Materials Research 29, 617–624 (2014). https://doi.org/10.1557/jmr.2014.37
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DOI: https://doi.org/10.1557/jmr.2014.37