通过在用作电极的纳米片表面设置致密介孔来优化电池寿命和容量 |
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作者单位: | School of Chemical Engineering,Sichuan University,Chengdu 610065,China;School of Chemical Engineering,Sichuan University,Chengdu 610065,China;School of Chemical Engineering,Sichuan University,Chengdu 610065,China;School of Chemical Engineering,Sichuan University,Chengdu 610065,China;School of Chemical Engineering,Sichuan University,Chengdu 610065,China;School of Chemical Engineering,Sichuan University,Chengdu 610065,China |
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基金项目: | This work was financially supported by the National Nat-ural Science Foundation of China |
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摘 要: | Nanosheets with mesopores on the surface have been prepared using molybdenum trioxide (α-MoO3). The effect of mesopores on the performance of the electrode remains elusive. The MoO3 nanosheets obtained in this study exhibited great battery performance, including good capacity, prolonged recycling life cycles, and excellent rate performance; e.g., 780 mAh/g when charged under a super high current-density of 1000 mA/g. These nanosheets demonstrated excellent stability, maintaining a capacity of 1189 mAh/g after 20 cycles, and 1075 mAh/g after 50 cycles; thus preventing the capacity to decrease to values under the scanning rate of 100 mA/g. These high-purity MoO3 nanosheets are well-ordered and have dense mesopores on the surface; these micropores contribute to the excellent electrode performance of the host electrode materials; the performance parameters include prolonged battery life and capacity. Setting mesopores or active sites on the electrode surface can be an alternative way to obtain stable electrodes in the future.
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关 键 词: | ,,,,,,, |
Optimization of battery life and capacity by setting dense mesopores on the surface of nanosheets used as electrode |
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Authors: | Yue-quan Su Xin-yue Zhang Li-meng Liu Yi-ting Zhao Fang Liu Qing-song Huang |
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Abstract: | Nanosheets with mesopores on the surface have been prepared using molybdenum trioxide (α-MoO3).The effect of mesopores on the performance of the electrode remains elusive.The MoO3 nanosheets obtained in this study exhibited great battery performance,including good capacity,prolonged recycling life cycles,and excellent rate performance; e.g.,780 mAh/g when charged under a super high current-dens-ity of 1000 mA/g.These nanosheets demonstrated excellent stability,maintaining a capacity of 1189 mAh/g after 20 cycles,and 1075 mAh/g after 50 cycles; thus preventing the capacity to decrease to values under the scanning rate of 100 mA/g.These high-purity MoO3 nanosheets are well-ordered and have dense mesopores on the surface; these micropores contribute to the excellent electrode performance of the host elec-trode materials; the performance parameters include prolonged battery life and capacity.Setting mesopores or active sites on the electrode sur-face can be an alternative way to obtain stable electrodes in the future. |
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Keywords: | MoO3 nanosheet dense mesopores battery electrode materials electrode performance |
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