Nitrogen-rich hierarchical porous hollow carbon nanofibers for high-performance supercapacitor electrodes
Nitrogen-rich hierarchical porous hollow carbon nanofibers for high-performance supercapacitor electrodes
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用于高性能超级电容器电极的富氮分级多孔中空碳纳米纤维
DOI:
10.1039/c6ra07128g
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发表时间:
2016-04
期刊:
影响因子:
3.9
通讯作者:
Kang Feiyu
中科院分区:
文献类型:
--
作者:
Zhan Changzhen;Xu Qiang;Yu Xiaoliang;Liang Qinghua;Bai Yu;Huang Zheng-Hong;Kang Feiyu
Nitrogen-rich hierarchical porous hollow carbon nanofibers (HPCNFs) were synthesized by concentric electrospinning and subsequent KCl/K2CO3 activation. The obtained HPCNFs have quite high nitrogen content (14.4 wt%) and rational hierarchical porous structure, thus exhibiting a high specific capacitance of 293 F g−1, a superior specific areal capacitance of 40 μF cm−2 at 0.2 A g−1 and an excellent rate capability of 62.8% (185 F g−1) at 50 A g−1 in 6 M KOH electrolyte.
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