Flower-like MnO2 decorated activated multihole carbon as high-performance asymmetric supercapacitor electrodes
Flower-like MnO2 decorated activated multihole carbon as high-performance asymmetric supercapacitor electrodes
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DOI：
10.1016/j.matlet.2014.07.120
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发表时间：
2014-11
影响因子：
3
通讯作者：
Shijin Zhu;Wanglai Cen;Longlong Hao;Junjun Ma;Liang Yu;Huaili Zheng;Yuxin Zhang
中科院分区：
文献类型：
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作者：
Shijin Zhu;Wanglai Cen;Longlong Hao;Junjun Ma;Liang Yu;Huaili Zheng;Yuxin Zhang
采用一种简单有效的方法制备了花状MnO2修饰活性多孔炭（AMC）。这种独特的MnO2@AMC纳米复合材料表现出优化的赝电容性能，显示出具有优异倍率性能的比电容（297.8 F g−1）。具有纳米复合材料作为正极和活化石墨烯（AG）作为负极的非对称超级电容器产生18.04 W h kg− 1的能量密度和8.97 kW kg−1的最大功率密度。因此，这种简单的合成策略可能有助于设计高性能的超级电容器电极。
Flower-like MnO2decorated activated multihole carbon (AMC) was fabricated by a simple but effective strategy. Such unique MnO2@AMC nanocomposite exhibited the optimized pseudocapacitance performance, revealing a specific capacitance (297.8 F g−1) with excellent rate ability. An asymmetric supercapacitor with nanocomposite as the positive electrode and activated graphene (AG) as the negative electrode yielded an energy density of 18.04 W h kg−1and a maximum power density of 8.97 kW kg−1. And thus, this facile synthetic strategy could be useful to design high-performance electrode for supercapacitors.