Table 3.
BET analysis results of lignin-based porous carbon materials by activation conditions

Activation source	Sample	SBETa	daveb	Vmicroc	Vmesod	Vtotale	Vmicro/Vtotalf	Yieldg
-	LBPC	45.8	2.38	0.02	0.17	0.19	0.1053	-
KOH	KA-LBPC-6	1017.9	1.81	0.37	0.09	0.46	0.8043	80
	KA-LBPC-7	2480.1	2.26	0.64	0.76	1.40	0.4571	72
	KA-LBPC-8	1192.2	1.89	0.44	0.12	0.56	0.7857	64
	KA-LBPC-9	666.5	2.72	0.14	0.31	0.45	0.3111	35

: specific surface area (m²/g)
: mean pore diameter (nm)
: micropore volume (cm³/g)
: mesopore volume (cm³/g)
: total pore volume (cm³/g)
: micropore fraction to total pore volume
: yield of LBPC after activation (%)
LBPC: non-activated and carbonized Lignin-PAN copolymer
KA-LBPC-x: KOH activated and carbonized Lignin-PAN copolymer