Preparation method of porous carbon microspheres

[0023] Preparation of carbon microspheres. Weigh 3.88g resorcinol, 5.2ml formaldehyde, mix and stir for 1 hour, add 30ml deionized water, mix and stir for 2 hours to form a uniform carbon precursor solution, measure 15ml polymer hollow microspheres, stir and mix at room temperature for 24 hours hour. Centrifugal cleaning, adding 1ml of acetic acid at 80°C for curing for 24 hours.

[0024] Dry at 60°C, put the powder in a high-temperature atmosphere furnace, pass argon gas at a rate of 0.1L / min, heat up to 100°C at a rate of 5K / min, and keep it warm for 2 hours. Then the temperature was raised to 420°C at a rate of 5K / min for 3 hours, and then the temperature was raised to 800°C at a rate of 5K / min, and the temperature was kept for 4 hours, and activated by carbon dioxide for 2 hours to obtain carbon microspheres.

[0026] Preparation of carbon microspheres. Weigh 3.88g resorcinol, 5.2ml formaldehyde, mix and stir for 1 hour, add 30ml of deionized water, mix and stir for 2 hours to form a uniform carbon precursor solution, measure 15ml of polymer hollow microspheres, stir and mix and place at room temperature for 48 hour. Centrifugal cleaning, adding 1ml of acetic acid at 40°C and curing for 24 hours.

[0027] Dry at 60°C, put the powder in a high-temperature atmosphere furnace, pass argon gas at a rate of 0.1L / min, heat up to 100°C at a rate of 5K / min, and keep it warm for 2 hours. Then the temperature was raised to 420°C at a rate of 5K / min for 3 hours, and then the temperature was raised to 900°C at a rate of 5K / min for 3 hours, and activated by carbon dioxide for 1 hour to obtain carbon microspheres.

[0029] Preparation of carbon microspheres. Weigh 3.88g resorcinol, 5.2ml formaldehyde, mix and stir for 1 hour, add 30ml deionized water, mix and stir for 2 hours to form a uniform carbon precursor solution, measure 15ml polymer hollow microspheres, stir and mix at room temperature for 24 hours hour. Centrifugal cleaning, adding 1ml of acetic acid at 60°C for curing for 24 hours.

[0030] Dry at 60°C, put the powder in a high-temperature atmosphere furnace, pass argon gas at a rate of 0.1L / min, heat up to 100°C at a rate of 5K / min, and keep it warm for 2 hours. Then the temperature was raised to 420°C at a rate of 5K / min for 3 hours, and then the temperature was raised to 1000°C at a rate of 5K / min for 3 hours, and activated by carbon dioxide for 1 hour to obtain carbon microspheres.