Porous activated carbon and alpha-Ni(OH)2 nano composite material and preparation method thereof
A nanocomposite material, porous activated carbon technology, applied in nanotechnology, nanotechnology, hybrid/electric double layer capacitor manufacturing and other directions, can solve the problems of large size, poor performance and small specific surface area of nickel hydroxide
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Embodiment 1
[0052] In the first step, 10 mg of activated carbon, 9.8 mmol of nickel sulfate hexahydrate, and 4.9 mmol of sodium hydroxide were dissolved in 40 mL of water, stirred for 15-20 min, and sonicated for 30 min;
[0053] In the second step, the mixture in the first step is transferred to a hydrothermal reaction kettle, and hydrothermally reacted at 120°C for 24 h;
[0054] In the third step, the product obtained in the second step was collected by centrifugation at a centrifugation rate of 6000 r / min, and the precipitate was washed several times with ethanol and water, dried in vacuum at 60 °C for 12 h, and then finely ground for use;
[0055] In the fourth step, weigh 200 mg of the powder obtained in the third step, and then disperse it into 40 mL of sodium sulfide solution with a concentration of 0.01 mol / L under the action of ultrasonic waves, and ultrasonicate for 60 min;
[0056] In the fifth step, the mixture in the fourth step was transferred to a hydrothermal reaction ket...
Embodiment 2
[0059] In the first step, 10 mg of activated carbon, 9.8 mmol of nickel sulfate hexahydrate, and 4.9 mmol of sodium hydroxide were dissolved in 40 mL of water, stirred for 15-20 min, and sonicated for 30 min;
[0060] In the second step, the mixture in the first step is transferred to a hydrothermal reaction kettle, and hydrothermally reacted at 120°C for 24 h;
[0061] In the third step, the product obtained in the second step was collected by centrifugation at a centrifugation rate of 6000 r / min, and the precipitate was washed several times with ethanol and water, dried in vacuum at 60 °C for 12 h, and then finely ground for use;
[0062] In the fourth step, weigh 200 mg of the powder obtained in the third step, and then disperse it into 40 mL of sodium sulfide solution with a concentration of 0.05 mol / L under the action of ultrasonic waves, and ultrasonicate for 60 min;
[0063] In the fifth step, the mixture in the fourth step was transferred to a hydrothermal reaction ket...
Embodiment 3
[0066] In the first step, 10 mg of activated carbon, 9.8 mmol of nickel sulfate hexahydrate, and 4.9 mmol of sodium hydroxide were dissolved in 40 mL of water, stirred for 15–20 min, and ultrasonically treated for 30 min;
[0067] In the second step, the mixture in the first step is transferred to a hydrothermal reaction kettle, and hydrothermally reacted at 120°C for 24 h;
[0068] In the third step, the product obtained in the second step was collected by centrifugation at a centrifugation rate of 6000 r / min, and the precipitate was washed several times with ethanol and water, dried in vacuum at 60 °C for 12 h, and then finely ground for use;
[0069] The fourth step is to weigh 200 mg of the powder obtained in the third step, and then disperse it into 40 mL of sodium sulfide solution with a concentration of 0.1 mol / L under the action of ultrasonic waves, and ultrasonicate for 60 min;
[0070] In the fifth step, the mixture in the fourth step was transferred to a hydrotherma...
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