| abstract |
A lignin porous carbon nano sheet, a preparation method therefor, and an application thereof in a super capacitor electrode material. Layer-by-layer self-assembly is carried out by means of a sulfonated lignin and oxalate in a selective solvent to prepare a layer-by-layer self-assembled lignin/oxalate complex, which is then carbonized and pickled to obtain a lignin porous carbon nano sheet. Provided are lignin porous carbon nano sheets prepared by means of the described method, the specific surface area thereof ranging from 200-1500 m2/g, the micropore specific surface area ranging from 100-500 m2/g, the mesopore specific surface area ranging from 100-1000 m2/g, the pore size being 0.5-30 nm, and the pore volume being 0.5-1.5 cm3/g; the lignin porous carbon nano sheets may be applied in super capacitor electrode materials, showing higher specific capacitance and excellent rate performance, and having good potential application value. |