Synthesis of honeycomb-like NiS2/NiO nano-multiple materials for high performance supercapacitors
Synthesis of honeycomb-like NiS2/NiO nano-multiple materials for high performance supercapacitors
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高性能超级电容器蜂窝状NiS2/NiO纳米多元材料的合成
DOI:
10.1016/j.electacta.2015.05.070
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发表时间:
2015-08
影响因子:
6.6
通讯作者:
Li Qiang
中科院分区:
文献类型:
--
作者:
Zhang Dongming;Zhou Xiaobin;Ye Ke;Li Yiju;Song Congying;Cheng Kun;Cao Dianxue;Wang Guiling;Li Qiang
Three dimensional (3D) honeycomb-like NiS2/NiO nano-multiple materials were successfully prepared by fabricating cribrate NiS2on the surface of NiO nanosheets through simple hydrothermal process on nickel foam. The morphology and phase structure of the NiS2/NiO are characterized by scanning electron microscopy equipped with energy dispersive X-ray spectrometer, transmission electron microscope, X-ray diffractometer and the electrochemical properties are tested by cyclic voltammetry, galvanostatic charge/discharge and electrochemical impedance spectroscopy. The NiS2/NiO electrode owns lower electrochemical impedance compared with bare NiO substrate and exhibits exceptional capacitance performance with a high specific capacitance of 2251 F g−1delivered at current density of 1 A g−1, while 1192 F g−1retained at 20 A g−1. What's more, after 2000 cycles, the specific capacitance remains 1275 F g−1(at 5 A g−1) with a capacitance retention of 78%. Therefore, the NiS2/NiO electrode shows remarkable electrochemical performance and has a promising future for electrochemical supercapacitors.
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影响因子:
6.7
作者:
Chen, Haichao;Jiang, Jianjun;Xia, Dandan
通讯作者:
Xia, Dandan
影响因子:
6.7
作者:
Xin Zhao;B. Sánchez;P. Dobson;P. Grant
通讯作者:
Xin Zhao;B. Sánchez;P. Dobson;P. Grant
影响因子:
17.1
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通讯作者:
Fan, Hong Jin
影响因子:
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R. B. Rakhi;Wei Chen;H. Alshareef
通讯作者:
R. B. Rakhi;Wei Chen;H. Alshareef
影响因子:
--
作者:
Bose, Saswata;Kuila, Tapas;Lee, Joong Hee
通讯作者:
Lee, Joong Hee