Preparation method and application of nickel sulfide/nickel hydroxide flower-like nano composition
A technology of nickel hydroxide flower and nanocomposite, which is applied to nickel oxide/nickel hydroxide, nickel sulfide, hybrid capacitor electrodes, etc., can solve the problems of few synthesis steps, long time, high pressure required for synthesis, etc., and achieves low production cost. , The effect of low equipment requirements and high synthesis yield
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Embodiment 1
[0032] Accurately take by weighing 6.018g of anhydrous magnesium sulfate, be mixed with 2mol / L magnesium sulfate solution of 25ml, then under 60 ℃ of water bath conditions, while stirring, dropwise in the magnesium sulfate solution, mass concentration is 20% ammoniacal liquor, when solution When the pH value is 10.5, stop dripping ammonia water and stirring, and obtain a white precipitate after aging the obtained suspension at room temperature for 2 hours, filter and wash to obtain white magnesium hydroxide powder; accurately weigh 65.712g hexahydrate Dissolve nickel sulfate in 500ml of deionized water, add the white powder obtained in the previous step into the nickel sulfate solution, stir at room temperature for 48 hours, filter, wash, and dry at 60°C for 2 hours to obtain green nickel hydroxide powder; Accurately weigh 20.000g of sodium sulfide nonahydrate, dissolve it in 500ml of deionized water, add the green powder obtained in the previous step into the sodium sulfide so...
Embodiment 2
[0038]Accurately weigh 12.820g of magnesium nitrate hexahydrate, and prepare 25ml of 2mol / L magnesium nitrate solution, then, under 60°C water bath condition, while stirring, dropwise add ammoniacal liquor with a mass concentration of 23% in the magnesium nitrate solution, as the solution When the pH value is 10.5, stop dripping ammonia water and stirring, and obtain a white precipitate after aging the obtained suspension at room temperature for 2 hours, filter and wash to obtain white magnesium hydroxide powder; accurately weigh 65.712g hexahydrate Dissolve nickel sulfate in 500ml of deionized water, add the white powder obtained in the previous step into the nickel sulfate solution, stir at room temperature for 48 hours, filter, wash, and dry at 60°C for 2 hours to obtain green nickel hydroxide powder; Accurately weigh 20.000g of sodium sulfide nonahydrate, dissolve it in 500ml of deionized water, add the green powder obtained in the previous step into the sodium sulfide solu...
Embodiment 3
[0041] Accurately weigh 10.165g of magnesium chloride hexahydrate, prepare 25ml of 2mol / L magnesium nitrate solution, and then add dropwise ammonia water with a mass concentration of 20% in the magnesium chloride solution while stirring in a water bath at 60°C, when the pH of the solution is When it is 10.5, stop adding ammonia water and stirring, and the obtained suspension is aged at room temperature for 1 hour to obtain a white precipitate, which is filtered and washed to obtain white magnesium hydroxide powder; accurately weigh 59.423g of chlorinated hexahydrate Nickel, dissolved in 500ml of deionized water, the white powder obtained in the previous step was added to the nickel chloride solution, stirred at room temperature for 12 hours, filtered, washed, and dried at 60°C for 4 hours to obtain green nickel hydroxide powder; Accurately weigh 11g of potassium sulfide, dissolve it in 500ml of deionized water, add the green powder obtained in the previous step into the potassi...
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