Preparation method of amorphous hydrated nickel cobalt phosphate flexible electrode material
A flexible electrode and amorphous technology, applied in the field of electrochemical energy storage, can solve the problems of complex preparation methods, low porosity, limited conductivity of materials, etc.
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Embodiment 1
[0014] Example 1: 0.2 mmol Ni(NO 3 ) 2 ·6H 2 O, 0.1 mmol Co(NO 3 ) 2 ·6H 2 O and 0.2 mmol NaH 2 PO 2 ·H 2 O was successively dissolved in a mixed solution of ethanol and water with equal volume ratio, and stirred at 300 rpm under magnetic stirring. -1 Stir for 15 minutes, use the platinum sheet as the counter electrode, and the saturated calomel electrode as the reference electrode, in a constant temperature water bath at 25 °C, use cyclic voltammetry in the voltage range of -1.5 to 0.25 V, and conduct 2 cycles of electrodeposition , after washing, dried in a vacuum oven at 60 °C for 24 h to obtain monohydrate NiCo-(HPO 4 ) 2 Amorphous nanospheres.
Embodiment 2
[0015] Example 2: 0.3 mmol Ni(NO 3 ) 2 ·6H 2 O, 0.2 mmol Co(NO 3 ) 2 ·6H 2 O and 0.2 mmol NaH 2 PO 2 ·H 2 O was sequentially dissolved in a solution of ethanol and water with a volume ratio of 1:2, and stirred at 300 r min under magnetic stirring. -1 Stir for 15 minutes, use the platinum sheet as the counter electrode, and the saturated calomel electrode as the reference electrode, in a constant temperature water bath at 25 °C, use cyclic voltammetry in the voltage range of -1.5 to 0.25 V, and conduct electrodeposition for 5 cycles. , after washing, dried in a vacuum oven at 60 °C for 24 hours to obtain monohydrate NiCo-(HPO 4 ) 2 Amorphous nanospheres.
Embodiment 3
[0016] Example 3: 0.4 mmol Ni(NO 3 ) 2 ·6H 2 O, 0.3 mmol Co(NO 3 ) 2 ·6H 2 O and 0.4 mmol NaH 2 PO 2 ·H 2 O was sequentially dissolved in a mixed solution of ethanol and water with a volume ratio of 1:3, and stirred at 300 r min under magnetic stirring. -1 Stir for 15 minutes, use a platinum sheet as the counter electrode, and a saturated calomel electrode as the reference electrode, in a constant temperature water bath at 25 °C, use cyclic voltammetry in the voltage range of -1.5 to 0.25 V, and conduct electrodeposition for 50 cycles. , after washing, dried in a vacuum oven at 60 °C for 24 h to obtain monohydrate NiCo-(HPO 4 ) 2 Amorphous nanospheres.
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