Ordered mesoporous nickel cobaltite spinel with ultra-high supercapacitance
Ordered mesoporous nickel cobaltite spinel with ultra-high supercapacitance
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DOI：
10.1039/c2ta00921h
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发表时间：
2013-01
影响因子：
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通讯作者：
Q. Lu;Yunpeng Chen;Wanfeng Li;Jingguang G. Chen;J. Xiao;F. Jiao
中科院分区：
文献类型：
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作者：
Q. Lu;Yunpeng Chen;Wanfeng Li;Jingguang G. Chen;J. Xiao;F. Jiao
通过同时定制电极电导率、孔径分散度和结晶度，开发了具有超高电容的介孔镍钴酸盐超级电容器电极。高活性质量负载（>10 mg cm-2）使得这种电极能够用于实际设备中。在28.6 A g−1的电流密度（相当于10 kW kg−1的功率密度）下，实现了8.2 F cm−2的最佳性能。作为当前工作的动机所示的原理被认为能够作为设计未来的高性能电极的指导方针。
Mesoporous nickel cobaltite supercapacitor electrodes with ultra-high capacitance were developed by simultaneously tailoring electrode conductivity, pore size dispersion, and crystallinity. High active mass loading (>10 mg cm−2) enables the feasibility for such electrodes being used in practical devices. At a current density of 28.6 A g−1 (equivalent to 10 kW kg−1 power density), the best performance of 8.2 F cm−2 was achieved. The principles illustrated as the motivation of the current work are believed to be able to serve as guidelines for designing future high-performance electrodes.