Preparation method of nickel oxide
A technology of nickel oxide and nickel hydroxide, which is applied in the direction of nickel oxide/nickel hydroxide, etc., can solve the problems of uniform particle size distribution, easy agglomeration, and uneven product particle size, and achieve uniform particle size, low material preparation cost, and good shape. Easy-to-control effect
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Embodiment 1
[0014] Weigh 2-3g of Ni(NO 3 ) 2 ·6H 2 O and 1-1.5g of 1 hexamethylenetetramine (HMTA) are placed in a 50mL beaker, add 20-25mL deionized water respectively, then add auxiliary surfactant polyvinylpyrrolidone (PVP) in the HMTA solution )1-1.5g, fully mix and dissolve. Under the action of magnetic stirring, the mixed solution of HMTA and PVP solution was dropped into Ni(NO 3 ) 2 solution, after fully stirring, transfer the above reaction mixture to a 25mL high-temperature reaction kettle, put the reaction kettle into a blast oven, set the temperature at 110°C, and react at this temperature for 6h, and wait for it to cool down to room temperature naturally , Take out the reaction kettle, centrifuge the product solution at high speed, wash thoroughly with deionized water and absolute ethanol in turn to obtain a light green paste, dry at 60°C for 12 hours, and obtain anhydrous nickel hydroxide. Then put the above-mentioned primary product nickel hydroxide precursor into a por...
Embodiment 2
[0016] Weigh 2-3g of Ni(NO 3 ) 2 ·6H 2 O and 1-1.5g of 1 hexamethylenetetramine (HMTA) are placed in a 50mL beaker, add 20-25mL deionized water respectively, then add auxiliary surfactant polyvinylpyrrolidone (PVP) in the HMTA solution )1-1.5g, fully mix and dissolve. Under the action of magnetic stirring, the mixed solution of HMTA and PVP solution was dropped into Ni(NO 3 ) 2 solution, after fully stirring, transfer the above reaction mixture to a 25mL high-temperature reaction kettle, put the reaction kettle into a blast oven, set the temperature at 110°C, react at this temperature for 5h, and wait for it to cool down to room temperature naturally , Take out the reaction kettle, centrifuge the product solution at high speed, wash thoroughly with deionized water and absolute ethanol in turn to obtain a light green paste, dry at 60°C for 12 hours, and obtain anhydrous nickel hydroxide. Then put the above-mentioned primary product nickel hydroxide precursor into a porcela...
Embodiment 3
[0018] Weigh 2-3g of Ni(NO 3 ) 2 ·6H 2 O and 1-1.5g of 1 hexamethylenetetramine (HMTA) are placed in a 50mL beaker, add 20-25mL deionized water respectively, then add auxiliary surfactant polyvinylpyrrolidone (PVP) in the HMTA solution )1-1.5g, fully mix and dissolve. Under the action of magnetic stirring, the mixed solution of HMTA and PVP solution was dropped into Ni(NO 3 ) 2 solution, after fully stirring, transfer the above reaction mixture to a 25mL high-temperature reaction kettle, put the reaction kettle into a blast oven, set the temperature at 110°C, and react at this temperature for 6h, and wait for it to cool down to room temperature naturally , Take out the reaction kettle, centrifuge the product solution at high speed, wash thoroughly with deionized water and absolute ethanol in turn to obtain a light green paste, dry at 60°C for 12 hours, and obtain anhydrous nickel hydroxide. Then put the above-mentioned primary product nickel hydroxide precursor into a por...
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