Ni-doped composite electrode material and preparation method thereof
A composite electrode and nanorod technology, applied in hybrid capacitor electrodes, nickel oxide/nickel hydroxide, cobalt carbonate, etc., to achieve the effects of excellent cycle performance, cheap and easily available raw materials, and easy operation
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Embodiment 1
[0029] One-step preparation of Ni-doped Co(CO 3 ) 0.5 (OH)·0.11H 2 O / Ni(OH) 2 / NF composite electrode material, comprising the following steps:
[0030] (1) Weigh 0.25 mmol of NiCl in sequence 2 ·6H 2 O, 1 mmol CoCl 2 ·6H 2 O, 6.25 mmol of CO(NH 2 ) 2 and 1.25 mmol of NH 4 F for solid-phase mixing, add 40 mL of deionized water, and use a magnetic stirrer to fully stir for 10 min to obtain a pink solution for later use;
[0031] (2) Put nickel foam (5 cm × 1 cm) into a 60 mL polytetrafluoroethylene-lined reactor and place it at a 45° angle to the inner wall, then add the pink solution in step (1) into the reactor, After sealing, put the reaction kettle into a constant temperature box and raise the temperature to 180 °C, react for 6 h, and cool to room temperature naturally, rinse the reacted foamed nickel with absolute ethanol and deionized water for several times, and then dry to obtain Ni-doped hetero Co(CO 3 ) 0.5 (OH)·0.11H 2 O / Ni(OH) 2 / NF composite electrod...
Embodiment 2
[0033] One-step preparation of Ni-doped Co(CO 3 ) 0.5 (OH)·0.11H 2 O / Ni(OH) 2 / NF composite electrode material, comprising the following steps:
[0034] (1) Weigh 0.25 mmol of NiCl in sequence 2 ·6H 2 O, 1 mmol CoCl 2 ·6H 2 O, 6.25 mmol of CO(NH 2 ) 2 and 1.25 mmol of NH 4 F for solid-phase mixing, add 40 mL of deionized water, and use a magnetic stirrer to fully stir for 10 min to obtain a pink solution for later use;
[0035] (2) Put nickel foam (5 cm × 1 cm) into a 60 mL polytetrafluoroethylene-lined reactor and place it at a 45° angle to the inner wall, then add the pink solution in step (1) into the reactor, After sealing, put the reactor into a constant temperature box and raise the temperature to 120°C, and react for 6 hours. After the reaction, cool down to room temperature naturally, and wash the reacted nickel foam with absolute ethanol and deionized water for several times, and finally in 60 ℃ in a drying oven for 12 h to obtain Ni-doped Co(CO 3 ) 0.5 (...
Embodiment 3
[0037] One-step preparation of Ni-doped Co(CO 3 ) 0.5 (OH)·0.11H 2 O / Ni(OH) 2 / NF composite electrode material, comprising the following steps:
[0038] (1) Weigh 0.25 mmol of NiCl in sequence 2 ·6H 2 O, 1 mmol CoCl 2 ·6H 2 O, 6.25 mmol of CO(NH 2 ) 2 and 1.25 mmol of NH 4 F for solid-phase mixing, add 40 mL of deionized water, and use a magnetic stirrer to fully stir for 10 min to obtain a pink solution for later use;
[0039] (2) Put nickel foam (5 cm × 1 cm) into a 60 mL polytetrafluoroethylene-lined reactor and place it at a 45° angle to the inner wall, then add the pink solution in step (1) into the reactor, After sealing, put the reaction kettle into a constant temperature box and raise the temperature to 140°C, and react for 6 hours. After the reaction, it was naturally cooled to room temperature, and the reacted nickel foam was washed with absolute ethanol and deionized water for several times, and then placed in Dry in a drying oven at 60 °C for 12 h to obt...
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