Crystalline NiCo2S4 nanotube array coated with amorphous NiCoxSy for supercapacitor electrodes

Journal of Colloid and Interface Science
Rui DingHong Gao

Abstract

Hierarchical NiCo2S4@NiCoxSy core/shell nanoarrays grown on carbon cloth were successfully synthesized via a two-step hydrothermal route and following an electrodeposition process. Compared with bare NiCo2S4, the electrochemical performance of NiCo2S4@NiCoxSy nanoarrays have been apparently improved, which shows areal capacitance as high as 3.9F/cm(2) at a constant current density of 1mA/cm(2). And the composite material exhibits excellent rate capability that a high areal capacitance of 2.9F/cm(2) is still retaining as the current density increase to 50mA/cm(2). The superior electrochemical performance can be attributed to the reasonably designed core/shell hierarchical structure of NiCo2S4@NiCoxSy nanoarrays, which would be promising for high-performance supercapacitor materials.

References

Oct 29, 2008·Nature Materials·Patrice Simon, Yury Gogotsi
May 14, 2011·Science·Yanwu ZhuRodney S Ruoff
Nov 14, 2013·Journal of the American Chemical Society·Yujie SunChristopher J Chang

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Citations

Apr 4, 2016·Journal of Colloid and Interface Science·Ediga Umeshbabu, G Ranga Rao
Jun 20, 2017·Chemistry, an Asian Journal·Yong-Ping Gao, Ke-Jing Huang
Oct 7, 2021·Dalton Transactions : an International Journal of Inorganic Chemistry·Jiachao ZhouLei Han

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