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The composite supercapacitor electrodes are fabricated by facile electrochemical deposition of Ni(OH)2 nanosheets on NiCo2O4 nanowire arrays which are grown radially on carbon fiber. The composite electrodes offer specific capacitance of 2400F/g at 1mA/cm2, excellent rate capability of 89% as the current density increasing from 1 to 20mA/cm2. Electrochemical performances are investigated at different...
High-performance supercapacitor electrodes with a core-shell heterostructure of carbon-fabric/NiCo2S4/Ni(OH)2 are rationally designed. The NiCo2S4 nanotube core synthesized by two step hydrothermal methods has a diameter of about 120nm and a thickness of about 25nm. The Ni(OH)2 shell prepared by electrochemical deposition method is made up by the small Ni(OH)2 ultrathin sheets. With this design and...
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