A kind of magnetic metal co nanopowder and preparation method thereof
A nano-powder, magnetic metal technology, applied in the field of magnetic metal Co nano-powder and its preparation, can solve the problems of complicated reaction process and inconvenient operation
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Embodiment 1
[0030] The first step, the preparation of the reaction precursor solution:
[0031] (a), use the mixed solution of isopropanol, glycerol and deionized water as solvent, prepare metal salt solution according to the following ratio, and stir for 60 minutes: CoCl 2 0.002 mol, isopropanol 45 mL, glycerol 15 mL, deionized water 5 mL;
[0032] (b) Add 0.02 mol of sodium hydroxide to the metal salt solution prepared in (a), and stir for 30 minutes at room temperature;
[0033] The second step, the preparation of magnetic metal Co nanopowder:
[0034] (a) Move the reaction precursor solution prepared in the first step into a stainless steel reaction kettle;
[0035] (b) Put it in a drying oven and raise the temperature to 190°C, and keep it warm for 15 hours;
[0036] (c), after the reaction is completed, the solution is centrifuged to obtain a solid;
[0037] (d) Wash the solid matter twice with deionized water, acetone or absolute ethanol in sequence;
[0038] (e), vacuum dryi...
Embodiment 2
[0042] The first step, the preparation of the reaction precursor solution:
[0043] (a), use the mixed solution of isopropanol, glycerol and deionized water as solvent, prepare metal salt solution according to the following ratio, and stir for 60 minutes: CoCl 2 0.004 mol, isopropanol 45 mL, glycerol 15 mL, deionized water 7 mL;
[0044] (b) Add 0.04 mol of potassium hydroxide to the metal salt solution prepared in (a), and stir for 30 minutes at room temperature;
[0045] The second step, the preparation of magnetic metal Co nanopowder:
[0046] (a) Move the reaction precursor solution prepared in the first step into a stainless steel reaction kettle;
[0047] (b) Put it in a drying oven and raise the temperature to 200°C, and keep it warm for 18 hours;
[0048] (c), after the reaction is completed, the solution is centrifuged to obtain a solid;
[0049] (d) Wash the solid matter twice with deionized water, acetone or absolute ethanol in sequence;
[0050] (e), vacuum d...
Embodiment 3
[0053] The first step, the preparation of the reaction precursor solution:
[0054] (a) Use the mixed solution of isopropanol, glycerol and deionized water as the solvent, prepare the metal salt solution according to the following ratio, and stir for 60 minutes: Co(NO 3 ) 2 0.003 mol, isopropanol 45 mL, glycerol 15 mL, deionized water 3 mL;
[0055] (b) Add 0.03 mol of sodium hydroxide to the metal salt solution prepared in (a), and stir for 30 minutes at room temperature;
[0056] The second step, the preparation of magnetic metal Co nanopowder:
[0057] (a) Move the reaction precursor solution prepared in the first step into a stainless steel reaction kettle;
[0058] (b), put it in a drying oven and heat it up to 180°C, and keep it warm for 12 hours;
[0059] (c), after the reaction is completed, the solution is centrifuged to obtain a solid;
[0060] (d), washing the solid matter with deionized water, acetone or absolute ethanol for 3 times each;
[0061] (e), vacuum ...
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