Hollow porous carbon ball electrode material for supercapacitors and method for preparing hollow porous carbon ball electrode material
A supercapacitor, hollow porous technology, used in hybrid capacitor electrodes, hybrid/electric double layer capacitor manufacturing, nanotechnology for materials and surface science, etc. The effect of specific capacitance, good cost advantage
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[0024] Specific implementation plan
[0025] In order to better understand the present invention, the present invention will be further described through specific examples below, but the protection scope of the present invention is not limited to this.
[0026] 1. Preparation of hollow porous carbon nanospheres
[0027] (1) Preparation of sulfonated polystyrene nanospheres
[0028] Take 2g of polystyrene nanospheres with a diameter of about 200nm and add them to 50mL of concentrated sulfuric acid. After stirring and reacting for 2h at 40°C, centrifuged and washed to obtain polystyrene nanospheres with sulfonic acid groups on the surface. The product should be stored in ethanol for later use.
[0029] (2) Take 2 g of the prepared sulfonated polystyrene nanospheres and put them into a 50 mL centrifuge tube, and disperse uniformly through ultrasound to obtain a sulfonated polystyrene nanosphere dispersion.
[0030] (3) Configure FeCl with a molar concentration of 2mM respectively 3 ·6H 2 O...
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