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arXiv · 1502.01059

Three-dimensional graphene skeletons supported nickel molybdate nanowire composite as novel ultralight electrode for supercapacitors

Xiaozhi Liu·Ke Zhang·Baolin Yang·Wenlei Song·Qian Liu·Fei Jia·Shiyi Qin·Wanjun Chen·Zhenxing Zhang·Jian Li
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Abstract

Nickel molybdate (NiMoO$_{4}$) nanowires were prepared on chemical-vapor-deposition-grown three-dimensional graphene skeletons by hydrothermal method. The X-ray diffraction and Raman results show that NiMoO$_{4}$ is $\alpha{}$ phase. This binder-free and ultralight graphene/ NiMoO$_{4}$ composite was used as a positive electrode for supercapacitors. This electrode presents a high specific capacitance of 1194 F g$^{-1}$ at 12 mA cm$^{-2}$ and the good stability with a cycling efficiency of 97.3% after 1000 cycles. Further, the energy density reaches an energy density of 41 Wh kg$^{-1}$ at a steady power density of 1319 W kg$^{-1}$. These results demonstrate the potential of the designed composite for the future flexible and lightweight energy storage.

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Xiaozhi Liu, Ke Zhang, Baolin Yang, Wenlei Song, Qian Liu, Fei Jia, Shiyi Qin, Wanjun Chen, Zhenxing Zhang, Jian Li. 2015-02-03. Three-dimensional graphene skeletons supported nickel molybdate nanowire composite as novel ultralight electrode for supercapacitors. https://doi.org/10.1016/j.matlet.2015.11.051

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