Preparation method of Ag-coated nickel slag conductive powder
A technology of conductive powder and nickel slag powder is applied in the field of preparation of Ag-coated nickel slag conductive powder, which can solve the problems of water pollution, soil pollution, and low utilization rate of nickel slag in the surrounding environment, and achieves simple operation and convenient raw materials. The effect of obtaining and reducing the amount of silver
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Embodiment 1
[0020] (1) Ultrasonic the nickel slag powder in water for 0.5h to obtain a uniform solution;
[0021] (2) Dissolve silver nitrate in water and add it into the prepared nickel slag solution for ultrasonic mixing, then stir for 2 hours to obtain solution A.
[0022] (3) Ultrasonic dissolution of oleic acid and ethylene glycol to obtain solution B, the molar ratio of oleic acid to silver nitrate is 1:1.
[0023] (4) Add solution B to solution A, then stir for 1 h, then add deionized water with a molar ratio of 1:1 to silver nitrate to obtain solution C.
[0024] (5) After the solution C was stirred for 2 hours, it was suction-filtered and washed several times with deionized water, and dried in a drying oven for 2 hours to obtain solid D.
[0025] (6) Put the solid D into a corundum ceramic boat, transfer it to a tube furnace, pass in argon, then raise the temperature to 550°C at a heating rate of 2°C / min, keep it warm for 2h, and cool to room temperature to obtain the target pro...
Embodiment 2
[0029] (1) Ultrasound the nickel slag powder in water for 1 hour to obtain a uniform solution;
[0030] (2) Dissolve silver nitrate in water and add it to the nickel slag solution for ultrasonic mixing, then stir for 4 hours to obtain solution A.
[0031] (3) Potassium oleate and ethanol were mixed and ultrasonically dissolved to obtain solution B, and the molar ratio of potassium oleate to silver nitrate was 10:1.
[0032] (4) Add solution B to solution A, then stir for 4 hours, then add deionized water with a molar ratio of 50:1 to silver nitrate to obtain solution C.
[0033] (5) After the solution C was stirred for 2 hours, it was suction-filtered and washed several times with deionized water, and dried in a drying oven for 12 hours to obtain solid D.
[0034] (6) Put the solid D into a corundum ceramic boat, transfer it to a tube furnace, blow in nitrogen, then raise the temperature to 650°C at a rate of 2°C / min, keep it warm for 2 hours, and cool to room temperature to ...
Embodiment 3
[0037] (1) Ultrasonic the nickel slag powder in ammonia water for 0.8h to obtain a uniform solution;
[0038] (2) Dissolve silver nitrate in water and add it to the nickel slag solution for ultrasonic mixing, then stir for 2 hours to obtain solution A.
[0039] (3) Oleic acid substances are mixed with ethanol and ultrasonically dissolved to obtain solution B. The mol ratio of oleic acid substances to silver nitrate is 5:1, and the oleic acid substances are potassium oleate and calcium oleate in a molar ratio of 1: 1 mix.
[0040] (4) Add solution B to solution A, then stir for 2 hours, then add deionized water with a molar ratio of 25:1 to silver nitrate to obtain solution C.
[0041] (5) After the solution C was stirred for 1 h, it was suction filtered and washed several times with deionized water, and then put into a drying oven to dry for 6 h to obtain solid D.
[0042] (6) Put the solid D into a corundum ceramic boat, transfer it to a tube furnace, blow in nitrogen gas, ...
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