Method for electroplating nickel-cobalt alloy based on lycine-urea-water eutectic solvent
A technology of deep eutectic solvent and betaine, which is applied in the field of electroplating, can solve problems such as combustion and explosion, and achieve a safe and non-toxic process
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Embodiment 1
[0027] First weigh 0.2 mol of betaine, 0.4 mol of urea, and 0.6 mol of distilled water and place them in a beaker, seal the beaker with plastic wrap, and then stir at a constant temperature of 80°C to obtain a transparent deep eutectic solvent. Weigh nickel chloride hexahydrate and cobalt chloride according to 0.3 moles per liter and 0.15 moles per liter respectively, add them to the above-mentioned deep eutectic solvent and stir at a constant temperature to obtain a nickel-cobalt-containing deep eutectic solvent, which is used as an electroplating nickel-cobalt alloy of electroplating solution.
[0028] Electrolytic nickel is used as the anode, brass is used as the cathode, immersed in a nickel-containing eutectic solvent heated to 70°C in a water bath for 60 minutes of constant current electroplating, wherein the direct distance between the cathode and the anode is 2cm, and the current density is 1mA / cm 2 ;
[0029] After the electroplating is completed, the brass is taken ...
Embodiment 2
[0031] First weigh 0.2 mol of betaine, 0.4 mol of urea, and 0.6 mol of distilled water and place them in a beaker, seal the beaker with plastic wrap, and then stir at a constant temperature of 80°C to obtain a transparent deep eutectic solvent. Weigh nickel chloride hexahydrate and cobalt chloride according to 0.3 moles per liter and 0.15 moles per liter respectively, add them to the above-mentioned deep eutectic solvent and stir at a constant temperature to obtain a nickel-cobalt-containing deep eutectic solvent, which is used as an electroplating nickel-cobalt alloy of electroplating solution.
[0032] Electrolytic nickel is used as the anode, and the low-carbon steel plate is used as the cathode, immersed in a nickel-containing eutectic solvent heated to 70°C in a water bath for 60 minutes of constant current electroplating, wherein the direct distance between the cathode and the anode is 1cm, and the current density is 0.5mA / cm 2 ;
[0033] After the electroplating is com...
Embodiment 3
[0035] First weigh 0.2 mol of betaine, 0.4 mol of urea, and 0.6 mol of distilled water and place them in a beaker, seal the beaker with plastic wrap, and then stir at a constant temperature of 80°C to obtain a transparent deep eutectic solvent. Weigh nickel chloride hexahydrate and cobalt chloride according to 0.3 moles per liter and 0.15 moles per liter respectively, add them to the above-mentioned deep eutectic solvent and stir at a constant temperature to obtain a nickel-cobalt-containing deep eutectic solvent, which is used as an electroplating nickel-cobalt alloy of electroplating solution.
[0036] Electrolytic nickel is used as the anode, and the low-carbon steel plate is used as the cathode, immersed in a nickel-containing eutectic solvent heated to 70°C in a water bath for 60 minutes of constant current electroplating, wherein the direct distance between the cathode and the anode is 1cm, and the current density is 2mA / cm 2 ;
[0037] After the electroplating is compl...
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