METHOD OF PRODUCING NANOSTRUCTURED POROUS CARBON MATERIAL Russian patent published in 2024 - IPC C01B32/318 C01B32/15 

FIELD: various technological processes.

SUBSTANCE: invention relates to production of nanostructured porous carbon materials from lignocellulose material. Disclosed is a method of producing a nanostructured porous carbon material, comprising mixing lignocellulose material with orthophosphoric acid, drying, activation and washing, wherein for activation the acid is taken at ratio of 0.1:1–8:1 by weight, respectively, activation is carried out in an oxygen-free medium at temperature of 400–800°C duration from 0 to 4 hours, with washing the product with distilled water, wherein the output of the obtained nanostructured porous carbon material is 20–50 wt.%, obtained material has a microporous or micro-mesoporous or mesoporous structure with the following characteristics: BET specific surface area of 1,200–2,880 m²/g, specific surface area according to QSDFT model of 1,010–2,162 m²/g, total pore volume – 1.03–2.78 cm³/g, average pore size of 1.9–7.0 nm, volume fraction of mesopores is 33–83%, bulk density is 0.16–0.45 g/cm³, and phosphorus content is 0.5–5.0% by weight.

EFFECT: simple and environmentally friendly method of synthesis of nanostructured carbon materials, which have higher BET specific surface area and total pore volume.

6 cl, 2 dwg, 21 ex