Preparation method of copper, cobalt and sulfur micropowder
A copper-cobalt-sulfur ultra-fine powder technology, applied in electrical components, electrochemical generators, battery electrodes, etc., can solve the problems of no copper-cobalt-sulfur ultra-fine powder reports, limited copper-cobalt-sulfur research reports, cumbersome experimental procedures, etc. , to achieve the effects of easy large-scale industrial production, large reversible charge and discharge capacity, and simple product separation operation
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Embodiment 1
[0037] A preparation method of copper cobalt sulfur superfine powder, it comprises the following steps:
[0038] (1) Weigh 0.1997g copper acetate hydrate (Cu(CH 3 COO) 2 ·H 2 O, purity ≥99.0%), 0.4982g of cobalt acetate hydrate (Co(CH 3 COO) 2 4H 2 O, purity ≥99.5%) and 0.3045g of thiourea (CH 4 N 2 S, purity ≥ 99.0%), dissolved in 60ml of ethylene glycol, stirred to form a solution;
[0039] (2) Transfer the solution obtained in step (1) to a 100ml stainless steel reaction kettle lined with polytetrafluoroethylene, and react for 12 hours at 200°C to obtain a black product after the reaction;
[0040] (3) Wash the obtained black product with absolute ethanol, centrifuge and wash it three times, and then dry it under vacuum at 80°C for 12 hours, so as to obtain black copper-cobalt-sulfur ultrafine powder.
[0041] As attached to the manual Figure 1-7 As shown, the obtained copper-cobalt-sulfur ultrafine powder is tested and it can be seen that: the copper-cobalt-sulfu...
Embodiment 2
[0043] A preparation method of copper cobalt sulfur superfine powder, it comprises the following steps:
[0044] (1) Weigh 0.2491g copper nitrate hydrate (Cu(NO 3 ) 2 ·3H 2 O, purity ≥99.5%), 0.5821g of cobalt nitrate hydrate (Co(NO 3 ) 2 ·6H 2 O, purity ≥99.0%) and 0.3045g of thiourea (CH 4 N 2 S, purity ≥ 99.0%), dissolved in 60ml of ethanol, stirred to form a solution;
[0045] (2) Transfer the solution obtained in step (1) to a 100ml stainless steel reactor lined with polytetrafluoroethylene, and react at 220°C for 6 hours;
[0046] (3) The product obtained in step (2) was washed with absolute ethanol and centrifuged for three times, and then dried under vacuum at 80°C for 12 hours to obtain black copper-cobalt-sulfur ultrafine powder.
[0047] As attached to the manual Figure 8 As shown, the copper-cobalt-sulfur ultrafine powder prepared in this example is a nano-flower morphology composed of nano-sheets.
Embodiment 3
[0049] A preparation method of copper cobalt sulfur superfine powder, it comprises the following steps:
[0050] (1) Weigh 0.1997g copper acetate hydrate (Cu(CH 3 COO) 2 ·H 2 O, purity ≥99.0%), 0.4982g of copper acetate hydrate (Co(CH 3 COO) 2 4H 2 O, purity ≥99.5%) and 0.4846g of L-cysteine (C 3 h 7 NO 2 S, purity ≥ 98.5%), dissolved in 60ml of ethylene glycol, stirred to form a solution;
[0051] (2) Transfer the solution obtained in step (1) to a 100ml stainless steel reaction kettle lined with polytetrafluoroethylene, and react at 180°C for 20 hours;
[0052] (3) The product obtained in step (2) was washed with absolute ethanol and centrifuged for three times, and then dried under vacuum at 80°C for 12 hours to obtain black copper-cobalt-sulfur ultrafine powder.
[0053] As attached to the manual Figure 9 As shown, the copper-cobalt-sulfur ultrafine powder prepared in this example has the morphology of nanoparticle stacking.
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