Nickel disulfide/carbon nanotube composite electrode material and preparation method and application thereof
A technology of carbon nanotube composite and nickel disulfide, which is applied in the direction of nickel sulfide, chemical instruments and methods, nanotechnology, etc., can solve the problems of reducing the contact area between electrode materials and electrolyte, not being improved, and structural collapse, etc., to achieve shortening Ion shuttle path, good synergistic effect, less environmental pollution effect
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Embodiment 1
[0035] A. a preparation method of nickel disulfide / carbon nanotube composite electrode material, the steps are as follows:
[0036] (1) Preparation of electrode materials: Add weighed nickel nitrate (0.4362 g) and sodium thiosulfate (1 g) into a 30 mL polytetrafluoroethylene autoclave. Then add ethanol solution (16 mL), stir until all the solids are dissolved, then add nickel-based carbon nanotube powder (30 mg) into the polytetrafluoroethylene autoclave, and sonicate for 30 min until all the carbon nanotube powder is completely Dispersed in solvent. Finally, the autoclave was heated for 36 h in a constant temperature blast drying oven at 150 °C.
[0037] (2) Preparation of finished electrode material: When the autoclave was naturally cooled to room temperature, the autoclave was opened, and the supernatant was poured out to obtain a black precipitate. The bottom precipitate was separated by a centrifuge, washed three times with distilled water and ethanol, and dried in a va...
Embodiment 2
[0054] A. a preparation method of nickel disulfide / carbon nanotube composite electrode material, the steps are as follows:
[0055] (1) Preparation of electrode materials: Weighed nickel nitrate (0.4362 g) and sodium thiosulfate (1 g) were added into a 30 mL polytetrafluoroethylene autoclave. Then add ethanol solution (16 mL), stir until all the solids are dissolved, then add nickel-based carbon nanotube powder (50 mg) into the polytetrafluoroethylene autoclave, and sonicate for 30 min until all the carbon nanotube powder is completely Dispersed in solvent. Finally, heat the autoclave in a constant temperature blast drying oven at 150 °C for 36 h;
[0056] (2) Preparation of finished electrode material: When the autoclave was naturally cooled to room temperature, the autoclave was opened, and the supernatant was poured out to obtain a black precipitate. The bottom precipitate was separated by a centrifuge, washed three times with distilled water and ethanol, and dried in a v...
Embodiment 3
[0064] A. a preparation method of nickel disulfide / carbon nanotube composite electrode material, the steps are as follows:
[0065] (1) Preparation of electrode materials: Weighed nickel nitrate (0.4362 g) and sodium thiosulfate (1 g) were added into a 30 mL polytetrafluoroethylene autoclave. Then add ethanol solution (16 mL), stir until all the solids are dissolved, then add nickel-based carbon nanotube powder (50 mg) into the polytetrafluoroethylene autoclave, and sonicate for 30 min until all the carbon nanotube powder is completely Dispersed in solvent. Finally, heat the autoclave in a constant temperature blast drying oven at 120°C for 36 h;
[0066] (2) Preparation of finished electrode material: When the autoclave was naturally cooled to room temperature, the autoclave was opened, and the supernatant was poured out to obtain a black precipitate. The bottom precipitate was separated by a centrifuge, washed three times with distilled water and ethanol, and dried in a va...
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