Using Different Ions to Tune Graphene Stack Structures from Sheet- to Onion-Like During Plasma Exfoliation, with Supercapacitor Applications

Table 1 Specific surface areas, pore volumes, specific capacitances, and charge transfer resistances of graphite, GNS_Na⁺, and GNS_H⁺

	Specific surface area (m² g⁻¹)	Pore volume (cm³ g⁻¹)	Specific capacitance (F g⁻¹) at 5 mV s⁻¹	Charge-transfer resistance (R_ct)
Graphite	9	0.058	11.4	3.5
GNS_Na⁺	72	0.289	21.6	3.9
GNS_H⁺	464	0.928	67.1	4.6