A preparation method of phosphorus-doped porous carbon material for supercapacitor
A technology of porous carbon materials and supercapacitors, applied in the field of materials, can solve the problems of high cost and low specific capacitance, and achieve low cost, high specific surface area, and environmental friendliness
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Embodiment 1
[0015] Add 2g of glucose, 1g of phosphoric acid and 0.2g of sulfuric acid into 5g of deionized water respectively, and then stir at 100r / min for 5 hours.
[0016] The homogeneous mixed solution was pre-reacted for 48 hours in a forced air drying oven at a temperature of 100° C. to obtain a solid mixture.
[0017] The pre-reaction product was placed in a high-temperature carbonization furnace, and the temperature was raised to 800°C at a heating rate of 7°C / min under a nitrogen atmosphere, carbonized at a constant temperature for 0.5 hours, and then naturally cooled to room temperature to prepare a phosphorus-doped porous carbon material .
[0018] Thoroughly mix phosphorus-doped porous carbon material (80wt%), conductive carbon black Super-P (10wt%) and polyvinylidene fluoride (10wt%) by mortar grinding, then add 50 times the mass of polyvinylidene fluoride In the N-methylpyrrolidone, stir well to form a paste. Using a platinum sheet as a current collector, apply the above-m...
Embodiment 2
[0020] Add 2g of glucose, 1g of phosphoric acid and 1g of sulfuric acid into 10g of deionized water respectively, and then stir at 500r / min for 1 hour.
[0021] The homogeneous mixed solution was pre-reacted for 24 hours in a forced air drying oven at a temperature of 150° C. to obtain a solid mixture.
[0022] The pre-reaction product was placed in a high-temperature carbonization furnace, and the temperature was raised to 800°C at a heating rate of 5°C / min under a nitrogen atmosphere, carbonized at a constant temperature for 1 hour, and then naturally cooled to room temperature to obtain a phosphorus-doped porous carbon material .
[0023] Thoroughly mix phosphorus-doped porous carbon material (80wt%), conductive carbon black Super-P (10wt%) and polyvinylidene fluoride (10wt%) by mortar grinding, then add 50 times the mass of polyvinylidene fluoride In the N-methylpyrrolidone, stir well to form a paste. Using a platinum sheet as a current collector, apply the above-mention...
Embodiment 3
[0025] Add 2 g of fructose, 0.5 g of phosphoric acid and 1 g of sulfuric acid into 10 g of deionized water respectively, and then stir at 300 r / min for 3 hours.
[0026] The homogeneous mixed solution was pre-reacted for 12 hours in a forced air drying oven at a temperature of 200° C. to obtain a solid mixture.
[0027] The pre-reaction product was placed in a high-temperature carbonization furnace, and the temperature was raised to 800°C at a heating rate of 10°C / min under a nitrogen atmosphere, carbonized at a constant temperature for 2 hours, and then naturally cooled to room temperature to obtain a phosphorus-doped porous carbon material .
[0028] Thoroughly mix phosphorus-doped porous carbon material (80wt%), conductive carbon black Super-P (10wt%) and polyvinylidene fluoride (10wt%) by mortar grinding, then add 50 times the mass of polyvinylidene fluoride In the N-methylpyrrolidone, stir well to form a paste. Using a platinum sheet as a current collector, apply the ab...
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