A method for preparing nickel-cobalt-magnesium sulfide composite nanostructure electrode material
A technology of composite nanostructure and electrode materials, which is applied in the field of preparation of nickel-cobalt-magnesium sulfide composite nanostructure electrode materials, achieving the effects of high repeatability, increased specific surface area, and excellent electrical properties
Active Publication Date: 2020-06-05
XIAMEN UNIV
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[0005] However, the current electronic devices are limited by the choice of material structure and performance, and there are various limitations and defects.
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specific Embodiment
[0037] 1) Preparation of NiCo 2 S 4 Nanosheet and MgS nanowire composite structure.
[0038] Prepare 60mL reaction aqueous solution, this solution contains 65mg nickel chloride hexahydrate, 281mg cobalt chloride hexahydrate, 60mg magnesium chloride hexahydrate, 215mg urea and 135mg ammonium fluoride, the stainless steel wire cleaned in step 1) is ultrasonicated in the above reaction solution solution 30min, make its surface fully contact with the solution, then place it in a 100mL reaction kettle containing the above reaction solution, react at 120°C for 24h, cool to room temperature, and obtain a layer of light pink film on the surface of the carbon cloth, use deionized water The samples were rinsed and dried to obtain NiCo 2 o 4 Composite structure of nanosheets and MgO nanowires.
[0039] Preparation Sodium sulfide aqueous solution is prepared by dissolving 50-80 mg of sodium sulfide nonahydrate in 60 ml of deionized water. Put the stainless steel wire with composite s...
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Abstract
The invention provides a method for preparing an electrode material of a nickel cobalt magnesium sulfide composite nanostructure and relates to an electrode active material. The method comprises a step of dissolving nickel chloride hexahydrate, cobalt chloride hexahydrate, magnesium chloride hexahydrate, urea and ammonium fluoride in deionized water to prepare a reaction aqueous solution, placinga cleaned stainless steel wire in a reaction vessel containing the reaction aqueous solution to perform ultrasonic processing, cooling to a room temperature after the reaction, washing the stainless steel wire with deionized water to obtain a composite nanostructured stainless steel wire with the growth of composite NiCo2O4 and MgO, and a step of dissolving sodium sulfide nonahydrate in deionizedwater to prepare a sodium sulfide aqueous solution, placing the composite nanostructured stainless steel wire with the growth of the composite NiCo2O4 and MgO into a reaction vessel containing sodiumsulfide aqueous solution for reaction, cooling to a room temperature, washing the stainless steel wire with deionized water, placing the stainless steel wire into an oven, and drying the stainless steel wire to obtain a NiCo2O4 and MgS nickel cobalt magnesium sulfide composite nanostructure electrode material. The method has the advantages of high repeatability, simple operation and mass production.
Description
technical field [0001] The invention relates to electrode active materials, in particular to a method for preparing nickel-cobalt-magnesium sulfide composite nanostructure electrode materials. Background technique [0002] With the advancement of science and technology and the development of society, the energy crisis has attracted more and more attention. In recent years, new energy devices such as perovskite solar cells, dye-sensitized solar cells, lithium-sulfur batteries, and supercapacitors have flourished. Among them, supercapacitors have developed rapidly in recent years due to their fast charge-discharge characteristics, high power density, long cycle life, and excellent reversibility (Zhao, J. et al. MOF for template-directed growth of well-oriented nanowire hybrid arrays on carbon nanotube fibers for wearable electronics integrated with triboelectric nanogenerators. Nano Energy 2018, 45, 420-431.). [0003] Electrode active materials have been extensively studied...
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IPC IPC(8): H01G11/24H01G11/30H01G11/86
CPCH01G11/24H01G11/30H01G11/86Y02E60/13
Inventor 叶美丹张鑫刘群陈星
Owner XIAMEN UNIV