Hierarchical N- and O-Doped Porous Carbon Composites for High-Performance Supercapacitors

Table 1

Porosity parameters and element composition by XPS of the carbon samples.

	Raw materials	Activity temperature (°C)	BET surface area (m^2/g)	Cumulative volume of pores (cm^3/g)	N/C content (at.%)	O/C content (at.%)
KCP-700	Silk/LPR	700	911	0.043	3.44	35.9
KCP-800	Silk/LPR	800	1927	0.127	1.9	16.0
KCP-900	Silk/LPR	900	1886	0.160	2.1	16.2
KSW-800	Silk	800	1334	0.082	8.8	22.2