Vegetable-sponge-shaped nickel cobaltate and nickel sulfide graded nano array electrode material
The invention discloses a vegetable sponge-shaped NiCo2O4-coated NixSy graded nano array electrode material, and belongs to the technical field of supercapacitor electrode materials. The preparation method comprises the following steps: putting cobalt nitrate, urea, ammonium fluoride and foamed nick...
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| creator | YIN HUICHUN ZHAN JUNLONG ZHU LIN DU WEIMIN CUI KEYING ZHOU BINGFAN |
| description | The invention discloses a vegetable sponge-shaped NiCo2O4-coated NixSy graded nano array electrode material, and belongs to the technical field of supercapacitor electrode materials. The preparation method comprises the following steps: putting cobalt nitrate, urea, ammonium fluoride and foamed nickel treated by acid into a reaction kettle for hydrothermal preparation of a NiCo2O4 precursor, annealing in a tubular furnace to obtain nano needle-shaped NiCo2O4, and finally synthesizing an ultrathin two-dimensional nano sheet on a one-dimensional NiCo2O4 nano needle by an electro-deposition method, and finally, the vegetable sponge-shaped NiCo2O4-coated NixSy nano composite array electrode material with one-dimensional and two-dimensional characteristics is formed. The obtained electrode material has excellent electrochemical performance, the specific capacitance can reach 3347 F/g when the current density is 1A/g, and the specific capacitance can still reach 1150 F/g even when the current density reaches 10 A/g |
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The preparation method comprises the following steps: putting cobalt nitrate, urea, ammonium fluoride and foamed nickel treated by acid into a reaction kettle for hydrothermal preparation of a NiCo2O4 precursor, annealing in a tubular furnace to obtain nano needle-shaped NiCo2O4, and finally synthesizing an ultrathin two-dimensional nano sheet on a one-dimensional NiCo2O4 nano needle by an electro-deposition method, and finally, the vegetable sponge-shaped NiCo2O4-coated NixSy nano composite array electrode material with one-dimensional and two-dimensional characteristics is formed. 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| subjects | BASIC ELECTRIC ELEMENTS CAPACITORS CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES ORLIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE CHEMISTRY COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F ELECTRICITY INORGANIC CHEMISTRY MANUFACTURE OR TREATMENT OF NANOSTRUCTURES MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES METALLURGY NANOTECHNOLOGY PERFORMING OPERATIONS SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES TRANSPORTING |
| title | Vegetable-sponge-shaped nickel cobaltate and nickel sulfide graded nano array electrode material |
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