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- W2912579526 abstract "Improving the energy density has been being a challenge for supercapacitors, and the efficient approach is to choose active materials (composites) based on the potential window (chemical stability) and theoretical specific capacitance of both matched electrodes, which usually own unique nano-sized and porous (hierarchical) structure. Herein, hierarchical VS4/rGO/CoS2@Co ([email protected]) nanocomposite cathode and rGO/Co9S8@Co ([email protected]) anode with nanosheet arrays were both in-situ synthesized on Co foam through a simple one-step hydrothermal process in the presence of graphene oxide (GO). [email protected] cathode exhibited a high capacitance of 274.3 mAh g−1 (1353 F g−1) at 0.625 A g−1 and an excellent cyclic life of 89.6% retention at 20,000th cycles, while [email protected] anode delivered a superior capacitance of 619.5 mAh g−1 (2230 F g−1) at 0.714 A g−1 and a good cyclability of 93.3% retention at 2000th cycles. An asymmetric supercapacitor (ASC) assembled by using [email protected] cathode and [email protected] anode revealed an ultrahigh energy density of 106 Wh kg−1 along with a power density of 2.67 kW kg−1." @default.
- W2912579526 created "2019-02-21" @default.
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- W2912579526 date "2019-06-01" @default.
- W2912579526 modified "2023-10-14" @default.
- W2912579526 title "Attaining a high energy density of 106 Wh kg−1 for aqueous supercapacitor based on VS4/rGO/CoS2@Co electrode" @default.
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- W2912579526 doi "https://doi.org/10.1016/j.cej.2019.02.031" @default.
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