%0 Journal Article %A Nguyen K. Thach %A Ilya S. Krechetov %A Valentin V. Berestov %A Oleg I. Kan %A Ivan A. Maslochenko %A Tatyana L. Lepkova %A Svetlana V. Stakhanova %T The role and effect of CO$_2$ flow rate on the structure formation of ultrahigh porous activated carbon from H$_3$PO$_4$-impregnated waste cotton used as supercapacitor electrode material %J Nanosistemy: fizika, himiâ, matematika %D 2023 %P 489-497 %V 14 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/NANO_2023_14_4_a10/ %G en %F NANO_2023_14_4_a10