Construction of hierarchical NiCo2S4 nanowires on 3D biomass carbon for high-performance supercapacitors
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One-dimensional/three-dimensional (1D/3D) hierarchical porous network configurations are composed of NiCo2S4 nanowires in-situ grown on biomass carbon (NiCo2S4/3DHC). The 3D biomass carbon (3DHC) with hierarchical micron- to nano-porous structure which is suitable for as a basal growth has been obtained from a pyrolysis active process of wood (Metasequoia). NiCo2S4 nanowires were produced on 3D biomass carbon via a facile hydrothermal method. The characterization and comparison of various properties of NiCo2S4/3DHC have been investigated systematically. A maximum specific capacitance of 765.8 F/g was observed for the NiCo2S4/3DHC electrode at 1 A/g in a 6 M KOH electrolyte solution, while 32.3 F/g for 3DHC at the same condition. The method reported here can be potentially applied to feasible construct 3D electrode configuration for energy storage devices using biomass as main raw materials.
This work was financially supported by the Natural Science Foundation of Hubei Provincial China (2017CFC829, 2017CFB291), National Natural Science Foundation of China (61604110), China Postdoctoral Science Foundation (2015M572210, 2016M602376). This work was also financially supported by the China Scholarship Council for Dr Hui Chen.
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Conflict of interest
Authors have no conflict of interest.
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