| abstract |
The invention relates to the technical field of supercapacitor electrode materials, and discloses a tin oxide - modified g - C3N4 supercapacitor electrode material, comprising the following formula raw materials and components: sulfonated polystyrene nano-microspheres, SnCl 2 , g‑C 3 N 4 -graphene composite, sodium citrate. The tin oxide-modified g-C 3 N 4 supercapacitor electrode material, the g-C 3 N 4 has a porous honeycomb shape, has developed specific surface area and pore structure, and provides more reactive sites , the nano-SnO 2 is uniformly dispersed and loaded into the specific surface and pores of the g‑C 3 N 4 -graphene composite, which reduces the phenomenon of nano-SnO 2 agglomeration and stacking, nano-SnO 2 hollow microspheres and g‑C 3 N A heterointerface structure is generated between 4 , which can reduce the volume expansion of SnO 2. Through high-temperature thermal reduction, part of the nano-SnO 2 is reduced to SnO, and a PN hetero interface is formed between the two, which generates a built-in electric field and accelerates The transfer and transport of charges enhances the electrical conductivity of electrode materials. |