A kind of catkin supercapacitor electrode material and preparation method and supercapacitor
A technology for supercapacitors and electrode materials, which is applied in the manufacture of hybrid capacitor electrodes and hybrid/electric double-layer capacitors. Effects of cycle stability and abundant raw material reserves
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[0014] The following examples describe the present invention in more detail.
[0015] According to the mass ratio of 1:1~2, mix 5g catkins with potassium hydroxide, grind them into powder and put them into a tube furnace. -2h, then increase the temperature to 850°C at 10°C / min for 1-2h, then cool naturally to obtain porous carbonized catkins.
[0016] According to the mass ratio of carbonized catkins and thiourea of 1:3~4, add 0.1g of porous carbonized catkins into the thiourea solution, stir vigorously for 0.5-1h, then heat at 80-90°C to evaporate the water to dryness; The material was sent into a tube furnace, and under the protection of argon, the temperature was raised to 800°C at a rate of 10°C / min, continued heating for 2-3 hours, and then cooled naturally to obtain nitrogen and sulfur doped carbonized catkin electrode materials.
[0017] Nitrogen-sulfur-doped carbonized catkins were used as the working electrode, the counter electrode was a platinum electrode, and a ...
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