Ultrafine nickel-copper carbonate hydroxide hierarchical nanowire networks for high-performance supercapacitor electrodes
Ultrafine nickel-copper carbonate hydroxide hierarchical nanowire networks for high-performance supercapacitor electrodes
复制标题
用于高性能超级电容器电极的超细碳酸镍铜分级纳米线网络
DOI：
10.1016/j.cej.2016.01.076
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发表时间：
2016
影响因子：
15.1
通讯作者：
Zhang Xiaojun
中科院分区：
文献类型：
--
作者：
Zheng Xiaoting;Ye Yunlong;Yang Qian;Geng Baoyou;Zhang Xiaojun
在不添加任何表面活性剂和粘合剂的情况下，采用水热法在泡沫铜表面合成了超细碳酸铜纳米线阵列。制备的水电解质中超级电容器用碳酸氢氧化镍铜分层纳米线电极具有显著提高的比电容（971 F g−1at 1a g−1）和能量密度（48.55 Wh kg−1at 541 W kg−1）。同时，作为电极材料的碳酸氢氧化镍铜层次化纳米线具有优异的长寿命循环稳定性，在2000次循环后仍保持91.5%的初始电容。因此，碳酸氢氧化镍-铜分层纳米线网络是一种很有前途的高能量密度长寿命循环超级电容器电极材料。
In this work, ultrafine nickel–copper carbonate hydroxide nanowire arrays on copper foam are synthesized via a facile hydrothermal method without any adscititious surfactant and binder. The fabricated nickel–copper carbonate hydroxide hierarchical nanowire networks electrodes for supercapacitors in aqueous electrolyte exhibit a significantly enhanced specific capacitance (971 F g−1at 1 A g−1) and energy density (48.55 Wh kg−1at 541 W kg−1). Meanwhile, the nickel–copper carbonate hydroxide hierarchical nanowire networks as electrode materials have excellent long-life cycling stability, retaining 91.5% of the initial capacitance after 2000 cycles. Thereby, the nickel–copper carbonate hydroxide hierarchical nanowire networks are promising electrode materials for high-energy-density long-life cycling supercapacitor application.